/* roulang page: index */
:root{
  --bg:#060D14;
  --panel:#0B1723;
  --glass:rgba(18,34,48,.62);
  --glass-strong:rgba(18,34,48,.88);
  --stroke:rgba(255,255,255,.06);
  --steel:#12405E;
  --blue:#2E7FB0;
  --brass:#C99A4B;
  --brass-l:#E8C07A;
  --cyan:#2BD9C4;
  --text:#E8EFF5;
  --muted:#9FB3C2;
  --line:rgba(201,154,75,.18);
  --ok:#3FBF8F;
  --warn:#E2A03F;
  --err:#E06A5C;
  --r-card:16px;
  --r-btn:10px;
  --r-input:10px;
  --r-img:12px;
  --shadow-card:0 20px 40px -24px rgba(0,0,0,.75);
  --shadow-glow:0 0 0 1px rgba(201,154,75,.5),0 8px 30px -6px rgba(201,154,75,.45);
  --sans:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  --mono:'JetBrains Mono','Roboto Mono',ui-monospace,Menlo,Consolas,monospace;
  --sec:96px;
  --head-h:76px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--sans);font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color .2s ease}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--brass);outline-offset:2px;border-radius:4px}
::selection{background:rgba(201,154,75,.35);color:#fff}
.mono{font-family:var(--mono);font-feature-settings:"tnum";font-weight:700}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:var(--sec) 0;position:relative}
.section--panel{background:var(--panel)}
.section--glass{background:linear-gradient(180deg,rgba(11,23,35,.6),rgba(6,13,20,0))}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.sec-tag{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:2px;color:var(--brass);text-transform:uppercase;font-family:var(--mono);margin-bottom:12px}
.sec-tag::before{content:'';width:22px;height:1px;background:var(--brass);opacity:.7}
.sec-title{font-size:30px;letter-spacing:.4px}
.sec-desc{color:var(--muted);font-size:15px;max-width:640px;margin-top:12px}
.sec-link{display:inline-flex;align-items:center;gap:6px;color:var(--brass-l);font-size:14px;white-space:nowrap;border-bottom:1px solid transparent;padding-bottom:2px}
.sec-link:hover{color:#fff;border-bottom-color:var(--brass)}
.glass{background:var(--glass);border:1px solid var(--stroke);border-radius:var(--r-card);box-shadow:var(--shadow-card),inset 0 0 0 1px rgba(255,255,255,.02);backdrop-filter:blur(14px)}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;height:var(--head-h);
  display:flex;align-items:center;background:transparent;transition:background .3s ease,backdrop-filter .3s ease;
}
.site-header::after{
  content:'';position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(201,154,75,0) 0%,rgba(201,154,75,.55) 50%,rgba(201,154,75,0) 100%);
  opacity:0;transition:opacity .3s ease;
}
.site-header.is-scrolled{background:rgba(6,13,20,.82);backdrop-filter:blur(14px)}
.site-header.is-scrolled::after{opacity:1}
.header-inner{display:flex;align-items:center;gap:20px;width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:36px;height:36px;flex-shrink:0}
.logo-text{font-size:17px;font-weight:900;letter-spacing:.5px;white-space:nowrap}
.logo-text small{font-size:12px;font-weight:500;color:var(--brass);margin-left:3px;letter-spacing:1px}
.search-box{
  position:relative;display:flex;align-items:center;gap:10px;
  width:100%;max-width:520px;min-width:420px;height:44px;padding:0 12px;
  background:rgba(11,23,35,.75);border:1px solid var(--stroke);border-radius:12px;
  transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.search-box:focus-within{border-color:var(--brass);box-shadow:0 0 0 3px rgba(43,217,196,.12),0 8px 26px -14px rgba(201,154,75,.7);background:rgba(11,23,35,.95)}
.search-box svg{flex-shrink:0;stroke:var(--muted)}
.search-box input{flex:1;min-width:0;background:none;border:0;outline:none;font-size:14px;color:var(--text)}
.search-box input::placeholder{color:rgba(159,179,194,.72)}
.search-key{flex-shrink:0;font-size:11px;padding:3px 9px;border-radius:999px;border:1px solid var(--line);color:var(--brass);font-family:var(--mono)}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{position:relative;padding:8px 11px;font-size:13.5px;color:var(--muted);border-radius:8px;white-space:nowrap;transition:color .2s ease,background .2s ease}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:var(--brass-l)}
.nav-link.is-active::after{content:'';position:absolute;left:11px;right:11px;bottom:2px;height:2px;border-radius:2px;background:var(--brass)}
.header-cta{flex-shrink:0}
.icon-btn{display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:10px;border:1px solid var(--stroke);color:var(--text)}
.icon-btn:hover{border-color:var(--brass);color:var(--brass-l)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:700;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{
  background:linear-gradient(135deg,#D8AC5E 0%,var(--brass) 55%,#A87A33 100%);
  color:#0A141C;box-shadow:var(--shadow-glow);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(232,192,122,.7),0 14px 38px -8px rgba(201,154,75,.6)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border:1px solid rgba(201,154,75,.6);color:var(--brass-l)}
.btn-ghost:hover{background:rgba(201,154,75,.1);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;transform:none;box-shadow:none;cursor:not-allowed}

/* ---------- Badge ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:3px 12px;border-radius:999px;
  font-size:12px;color:var(--brass-l);background:rgba(201,154,75,.08);border:1px solid rgba(201,154,75,.45);
}
.badge--cyan{color:var(--cyan);border-color:rgba(43,217,196,.4);background:rgba(43,217,196,.08)}

/* ---------- Hero ---------- */
.hero{position:relative;padding:calc(var(--head-h) + 78px) 0 84px;overflow:hidden}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;z-index:0}
.hero-mask{position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(6,13,20,.95) 0%,rgba(6,13,20,.82) 42%,rgba(6,13,20,.5) 100%)}
.hero-texture{
  position:absolute;inset:0;z-index:2;opacity:.05;pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='260' height='260' viewBox='0 0 260 260'%3E%3Cg fill='none' stroke='%23C99A4B' stroke-width='1'%3E%3Cpath d='M0 130c43 0 43-44 87-44s43 44 86 44 43-44 87-44'/%3E%3Cpath d='M0 172c43 0 43-44 87-44s43 44 86 44 43-44 87-44'/%3E%3Cpath d='M0 88c43 0 43-44 87-44s43 44 86 44 43-44 87-44'/%3E%3C/g%3E%3C/svg%3E");
}
.hero-inner{position:relative;z-index:3;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:10px;padding:6px 14px;border-radius:999px;background:rgba(18,34,48,.75);border:1px solid var(--stroke);font-size:12.5px;color:var(--muted);margin-bottom:22px}
.pulse{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 0 rgba(43,217,196,.7);animation:pulse 2.4s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(43,217,196,.55)}70%{box-shadow:0 0 0 10px rgba(43,217,196,0)}100%{box-shadow:0 0 0 0 rgba(43,217,196,0)}}
.hero h1{font-size:44px;line-height:1.24;letter-spacing:.5px}
.hero h1 em{font-style:normal;color:var(--brass-l)}
.hero-sub{margin-top:18px;font-size:16px;color:var(--muted);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:30px;padding-top:24px;border-top:1px solid var(--line)}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted)}
.hero-points svg{stroke:var(--brass);flex-shrink:0}

.hero-board{padding:24px}
.board-head{display:flex;align-items:center;gap:10px;padding-bottom:16px;border-bottom:1px solid var(--stroke);font-size:13px;color:var(--muted)}
.board-head .dot{width:8px;height:8px;border-radius:50%;background:var(--cyan)}
.board-head .mono{margin-left:auto;color:var(--text);font-size:12.5px}
.board-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:18px}
.board-card{padding:16px;border-radius:14px;background:rgba(11,23,35,.72);border:1px solid var(--stroke)}
.board-card h3{font-size:13.5px;font-weight:500;color:var(--text);margin-top:6px}
.board-value{font-size:30px;line-height:1.1;color:#fff}
.board-value .unit{font-size:14px;color:var(--brass-l);margin-left:4px}
.board-card p{margin-top:6px;font-size:12.5px;color:var(--muted);line-height:1.6}
.bar{height:4px;border-radius:99px;background:rgba(255,255,255,.08);margin-top:12px;overflow:hidden}
.bar i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--cyan),rgba(43,217,196,.35))}
.ring{width:58px;height:58px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--cyan) 0 82%,rgba(255,255,255,.09) 82% 100%);margin-bottom:6px}
.ring span{width:44px;height:44px;border-radius:50%;background:#0B1723;display:grid;place-items:center;font-family:var(--mono);font-size:12.5px;color:var(--cyan)}

/* ---------- Stat strip ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:56px;position:relative;z-index:3}
.stat-item{padding:20px 22px;border-radius:14px;background:rgba(11,23,35,.7);border:1px solid var(--stroke);box-shadow:var(--shadow-card)}
.stat-item .num{font-size:26px;color:var(--brass-l);display:flex;align-items:baseline;gap:4px}
.stat-item .num small{font-size:13px;color:var(--muted);font-family:var(--sans);font-weight:500}
.stat-item .label{margin-top:6px;font-size:13.5px;color:var(--muted)}

/* ---------- Service matrix ---------- */
.matrix{display:grid;grid-template-columns:240px 1fr;gap:28px;align-items:start}
.matrix-nav{padding:20px;border-radius:var(--r-card);background:var(--panel);border:1px solid var(--stroke);position:sticky;top:calc(var(--head-h) + 20px)}
.matrix-nav h3{font-size:14px;color:var(--brass);margin-bottom:14px;letter-spacing:1px;font-family:var(--mono);font-weight:700}
.matrix-nav a{display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:10px;font-size:14px;color:var(--muted);border-left:2px solid transparent;transition:all .2s ease}
.matrix-nav a:hover,.matrix-nav a.is-on{color:var(--text);background:rgba(201,154,75,.08);border-left-color:var(--brass)}
.matrix-nav a .idx{font-family:var(--mono);font-size:12px;color:var(--brass);opacity:.8}
.matrix-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.svc-card{padding:22px;border-radius:var(--r-card);background:var(--glass);border:1px solid var(--stroke);box-shadow:var(--shadow-card);display:flex;flex-direction:column;transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}
.svc-card:hover{transform:translateY(-4px);border-color:rgba(201,154,75,.5);box-shadow:0 26px 48px -26px rgba(0,0,0,.9)}
.svc-thumb{position:relative;border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/9;margin-bottom:18px}
.svc-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s ease}
.svc-thumb::after{content:'';position:absolute;inset:0;background:rgba(6,13,20,.28)}
.svc-card:hover .svc-thumb img{transform:scale(1.03)}
.svc-no{font-family:var(--mono);font-size:13px;color:var(--brass);opacity:.85;margin-bottom:6px}
.svc-card h3{font-size:18px}
.svc-card p{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.svc-more{margin-top:16px;display:inline-flex;align-items:center;gap:6px;font-size:13.5px;color:var(--brass-l)}
.svc-card:hover .svc-more{color:#fff}

/* ---------- Compare table ---------- */
.table-wrap{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--stroke);background:var(--glass);box-shadow:var(--shadow-card)}
table.compare{width:100%;border-collapse:collapse;font-size:14.5px}
table.compare thead th{background:var(--brass);color:#0A141C;font-weight:700;text-align:left;padding:16px 22px;font-size:14px;letter-spacing:.5px}
table.compare tbody td{padding:16px 22px;border-top:1px solid var(--stroke);color:var(--muted);vertical-align:top}
table.compare tbody td:first-child{color:var(--text);font-weight:500;width:22%}
table.compare tbody tr{transition:background .2s ease}
table.compare tbody tr:hover{background:rgba(43,217,196,.06)}
table.compare tbody td .tag{display:inline-flex;padding:2px 10px;border-radius:999px;font-size:12px;border:1px solid rgba(201,154,75,.4);color:var(--brass-l);background:rgba(201,154,75,.08);margin-right:8px;font-family:var(--mono)}
table.compare tbody td .tag--good{border-color:rgba(63,191,143,.45);color:var(--ok);background:rgba(63,191,143,.08)}

/* ---------- Posts ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.post-card{border-radius:var(--r-card);background:var(--glass);border:1px solid var(--stroke);box-shadow:var(--shadow-card);overflow:hidden;transition:transform .25s ease,border-color .25s ease}
.post-card:hover{transform:translateY(-4px);border-color:rgba(201,154,75,.45)}
.post-card--lead{grid-row:span 2}
.post-inner{display:block;height:100%}
.post-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(120deg,#0F2231,#132C3F)}
.post-card--lead .post-thumb{aspect-ratio:4/3}
.post-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s ease}
.post-thumb::after{content:'';position:absolute;inset:0;background:rgba(6,13,20,.22)}
.post-card:hover .post-thumb img{transform:scale(1.03)}
.post-body{padding:20px}
.post-meta{display:flex;align-items:center;gap:10px;margin-bottom:10px;flex-wrap:wrap}
.post-meta time{font-family:var(--mono);font-size:12px;color:var(--muted)}
.post-title{font-size:16.5px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card--lead .post-title{font-size:20px}
.post-sum{margin-top:10px;font-size:13.5px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{margin-top:16px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--brass-l)}
.skeleton{border-radius:var(--r-card);border:1px solid var(--stroke);background:linear-gradient(90deg,rgba(18,34,48,.6) 25%,rgba(30,52,70,.75) 37%,rgba(18,34,48,.6) 63%);background-size:400% 100%;animation:shimmer 1.6s infinite;height:280px}
@keyframes shimmer{0%{background-position:100% 0}100%{background-position:0 0}}
.empty-state{grid-column:1/-1;display:flex;align-items:center;justify-content:center;gap:12px;padding:56px 24px;border:1px dashed var(--line);border-radius:var(--r-card);color:var(--muted);font-size:14.5px;background:rgba(11,23,35,.5)}
.empty-state svg{stroke:var(--brass)}

/* ---------- FAQ ---------- */
.faq-wrap{padding:10px 26px;border-radius:var(--r-card);background:var(--glass);border:1px solid var(--stroke);box-shadow:var(--shadow-card)}
.faq-item{border-bottom:1px solid var(--stroke)}
.faq-item:last-child{border-bottom:0}
.faq-q{display:flex;align-items:center;gap:16px;width:100%;padding:22px 0;text-align:left;font-size:16px;font-weight:500;color:var(--text);transition:color .2s ease}
.faq-q:hover{color:var(--brass-l)}
.faq-num{font-family:var(--mono);font-size:13px;color:var(--brass);opacity:.85;flex-shrink:0}
.faq-icon{position:relative;width:16px;height:16px;flex-shrink:0;margin-left:auto}
.faq-icon::before,.faq-icon::after{content:'';position:absolute;background:var(--brass);border-radius:2px;transition:transform .3s ease,opacity .3s ease}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-item.is-open .faq-a{max-height:400px}
.faq-a p{padding:0 0 22px 38px;color:var(--muted);font-size:14.5px;line-height:1.85}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:start}
.form-card{padding:30px;border-radius:var(--r-card);background:var(--glass);border:1px solid var(--stroke);box-shadow:var(--shadow-card)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13.5px;color:var(--muted);margin-bottom:8px}
.field label .req{color:var(--brass);margin-left:4px}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--r-input);
  background:rgba(6,13,20,.75);border:1px solid var(--stroke);color:var(--text);font-size:14.5px;
  outline:none;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:110px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:rgba(159,179,194,.6)}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brass);box-shadow:0 0 0 3px rgba(43,217,196,.12)}
.field.is-error input,.field.is-error select,.field.is-error textarea{border-color:var(--err)}
.field .err-tip{display:none;margin-top:6px;font-size:12.5px;color:var(--err)}
.field.is-error .err-tip{display:block}
.check{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--muted);margin-bottom:22px}
.check input{width:16px;height:16px;margin-top:4px;accent-color:var(--brass)}
.form-tip{display:none;margin-top:16px;padding:12px 16px;border-radius:10px;font-size:13.5px}
.form-tip.is-visible{display:block}
.form-tip.ok{background:rgba(63,191,143,.1);border:1px solid rgba(63,191,143,.4);color:var(--ok)}
.trust-card{padding:24px;border-radius:var(--r-card);background:var(--panel);border:1px solid var(--stroke);margin-bottom:20px}
.trust-card li{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed rgba(255,255,255,.07);font-size:14px;color:var(--muted)}
.trust-card li:last-child{border-bottom:0;padding-bottom:0}
.trust-card li:first-child{padding-top:0}
.trust-card svg{flex-shrink:0;margin-top:4px;stroke:var(--brass)}
.trust-img{position:relative;border-radius:var(--r-card);overflow:hidden;aspect-ratio:16/7}
.trust-img img{width:100%;height:100%;object-fit:cover;border-radius:0}
.trust-img::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,13,20,.15),rgba(6,13,20,.7))}
.trust-img span{position:absolute;left:20px;bottom:18px;z-index:2;font-size:14px;color:#fff}

/* ---------- CTA band ---------- */
.cta-band{margin:0 auto;padding:44px;border-radius:20px;background:linear-gradient(120deg,rgba(18,64,94,.9),rgba(11,23,35,.92));border:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:28px;position:relative;overflow:hidden}
.cta-band h2{font-size:26px}
.cta-band p{margin-top:10px;color:var(--muted);font-size:14.5px}

/* ---------- Footer ---------- */
.site-footer{margin-top:var(--sec);background:var(--panel);border-top:1px solid transparent;position:relative}
.site-footer::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,rgba(201,154,75,0),rgba(201,154,75,.6),rgba(201,154,75,0))}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding:64px 0 48px}
.footer-brand .logo{margin-bottom:18px}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.85;max-width:320px}
.footer-col h3{font-size:14px;color:var(--brass);letter-spacing:1px;margin-bottom:18px;font-family:var(--mono);font-weight:700}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--brass-l)}
.footer-col .mono{color:var(--text);font-size:14px}
.footer-bottom{border-top:1px solid var(--stroke);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--muted)}
.footer-bottom .mono{color:var(--muted);font-weight:500}

/* ---------- Mobile drawer & search panel ---------- */
.mobile-search-panel{position:fixed;top:var(--head-h);left:0;right:0;z-index:110;padding:14px 20px;background:rgba(6,13,20,.96);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);transform:translateY(-120%);transition:transform .3s ease}
.mobile-search-panel.is-open{transform:translateY(0)}
.mobile-search-panel .search-box{min-width:0;max-width:none}
.drawer-mask{position:fixed;inset:0;z-index:129;background:rgba(3,8,12,.6);opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;z-index:130;width:min(340px,86vw);padding:24px;background:var(--panel);border-left:1px solid var(--line);transform:translateX(100%);transition:transform .32s ease;display:flex;flex-direction:column;gap:8px;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-nav a{display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:10px;font-size:15px;color:var(--muted);border:1px solid transparent}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--brass-l);border-color:var(--line);background:rgba(201,154,75,.07)}
.drawer .search-box{min-width:0;max-width:none;margin-bottom:16px}
.drawer-cta{margin-top:auto;padding-top:20px}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  .header-inner{gap:14px}
  .search-box{max-width:380px;min-width:300px}
  .nav-link{font-size:13px;padding:8px 9px}
  .hero h1{font-size:38px}
  .matrix{grid-template-columns:210px 1fr}
}
@media (max-width:1023px){
  :root{--sec:72px}
  .main-nav,.header-cta{display:none}
  .icon-btn{display:inline-flex}
  .search-box{display:none}
  .search-toggle{margin-left:auto}
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero{padding-top:calc(var(--head-h) + 52px)}
  .hero h1{font-size:34px}
  .board-grid{grid-template-columns:1fr 1fr}
  .stat-strip{grid-template-columns:1fr 1fr;margin-top:36px}
  .matrix{grid-template-columns:1fr}
  .matrix-nav{position:static;display:grid;grid-template-columns:1fr 1fr;gap:6px}
  .matrix-nav h3{grid-column:1/-1}
  .matrix-grid{grid-template-columns:1fr 1fr}
  .post-grid{grid-template-columns:1fr 1fr}
  .post-card--lead{grid-row:auto}
  .post-card--lead .post-thumb{aspect-ratio:16/9}
  .contact-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .hero h1{font-size:28px}
  .hero-sub{font-size:15px}
  .hero-actions .btn{flex:1;min-width:150px}
  .board-grid{grid-template-columns:1fr 1fr}
  .board-card{padding:14px}
  .board-value{font-size:24px}
  .stat-strip{grid-template-columns:1fr 1fr;gap:14px}
  .stat-item{padding:16px}
  .stat-item .num{font-size:22px}
  .matrix-nav{grid-template-columns:1fr}
  .matrix-grid{grid-template-columns:1fr}
  .post-grid{grid-template-columns:1fr}
  .sec-title{font-size:24px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px}
  .faq-wrap{padding:6px 18px}
  .faq-q{font-size:15px;padding:18px 0}
  .faq-a p{padding-left:0}
  .form-card{padding:20px}
  .form-row{grid-template-columns:1fr;gap:0}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:44px 0 32px}
  .table-wrap{border:0;background:none;box-shadow:none}
  table.compare{display:block}
  table.compare thead{display:none}
  table.compare tbody{display:block}
  table.compare tbody tr{display:block;margin-bottom:16px;padding:18px;border:1px solid var(--stroke);border-radius:14px;background:var(--glass)}
  table.compare tbody td{display:block;border-top:0;padding:0 0 12px}
  table.compare tbody td::before{content:attr(data-label);display:block;font-size:12px;color:var(--brass);margin-bottom:6px;font-family:var(--mono)}
  table.compare tbody td:last-child{padding-bottom:0}
}
@media (max-width:420px){
  .hero h1{font-size:24px}
  .board-grid{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr}
  .sec-title{font-size:21px}
  .btn{height:44px;padding:0 18px;font-size:14px}
}

/* roulang page: category1 */
/* ===== 设计变量：全站唯一色板 ===== */
:root{
  --bg:#060D14;
  --panel:#0B1723;
  --glass:rgba(18,34,48,.62);
  --glass-strong:rgba(18,34,48,.88);
  --stroke:rgba(255,255,255,.06);
  --steel:#12405E;
  --blue:#2E7FB0;
  --brass:#C99A4B;
  --brass-lt:#E8C07A;
  --cyan:#2BD9C4;
  --text:#E8EFF5;
  --muted:#9FB3C2;
  --line:rgba(201,154,75,.18);
  --ok:#3FBF8F;
  --warn:#E2A03F;
  --err:#E06A5C;
  --r-card:16px;
  --r-btn:10px;
  --r-input:10px;
  --r-img:12px;
  --shadow-card:0 20px 40px -24px rgba(0,0,0,.75);
  --shadow-glow:0 0 0 1px rgba(201,154,75,.5),0 8px 30px -6px rgba(201,154,75,.45);
  --mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --maxw:1240px;
  --sec-gap:96px;
}

/* ===== 基础 reset ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
table{border-collapse:collapse;width:100%}
:focus{outline:none}
:focus-visible{outline:2px solid var(--brass);outline-offset:2px}
::selection{background:rgba(201,154,75,.35);color:#fff}

.mono{font-family:var(--mono);font-weight:700;letter-spacing:.4px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease,opacity .2s ease;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{
  color:#1B1206;
  background:linear-gradient(135deg,#E8C07A 0%,#C99A4B 62%,#B0833A 100%);
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(232,192,122,.6),0 12px 36px -6px rgba(201,154,75,.6)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(201,154,75,.5),0 4px 14px -6px rgba(201,154,75,.45)}
.btn-ghost{
  color:var(--brass-lt);background:transparent;border:1px solid rgba(201,154,75,.55);
}
.btn-ghost:hover{background:rgba(201,154,75,.1);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn[disabled],.btn.is-disabled{opacity:.45;transform:none;pointer-events:none}

/* ===== 标签 / 徽章 ===== */
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;border:1px solid rgba(201,154,75,.45);
  background:rgba(201,154,75,.08);color:var(--brass-lt);
  font-size:12.5px;line-height:1;white-space:nowrap;
}
.tag-cyan{border-color:rgba(43,217,196,.4);background:rgba(43,217,196,.08);color:var(--cyan)}
.tag-muted{border-color:rgba(159,179,194,.28);background:rgba(159,179,194,.06);color:var(--muted)}

/* ===== 头部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:transparent;
  transition:background .3s ease,box-shadow .3s ease,backdrop-filter .3s ease;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(201,154,75,0) 0%,rgba(201,154,75,.45) 50%,rgba(201,154,75,0) 100%);
  opacity:0;transition:opacity .3s ease;
}
.site-header.is-scrolled{background:rgba(6,13,20,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.site-header.is-scrolled::after{opacity:1}
.header-inner{
  max-width:var(--maxw);margin:0 auto;height:76px;padding:0 24px;
  display:flex;align-items:center;gap:18px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{display:inline-flex;filter:drop-shadow(0 0 10px rgba(201,154,75,.25))}
.logo-text{font-size:19px;font-weight:700;letter-spacing:.5px;color:var(--text)}
.logo-text small{font-size:12px;font-weight:500;color:var(--muted);margin-left:4px;letter-spacing:1px}

.search-box{
  position:relative;flex:1 1 auto;min-width:420px;max-width:560px;height:44px;
  display:flex;align-items:center;gap:10px;padding:0 12px 0 14px;
  background:rgba(12,24,35,.72);border:1px solid rgba(255,255,255,.08);
  border-radius:12px;transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.search-box svg{stroke:var(--muted);flex:0 0 auto}
.search-box input{
  flex:1 1 auto;min-width:0;height:100%;border:0;background:transparent;
  font-size:14px;color:var(--text);
}
.search-box input::placeholder{color:rgba(159,179,194,.78)}
.search-box input:focus{outline:none}
.search-box:focus-within{
  border-color:rgba(201,154,75,.75);
  background:rgba(12,24,35,.92);
  box-shadow:0 0 0 3px rgba(43,217,196,.12),0 0 20px -4px rgba(43,217,196,.35);
}
.search-key{
  flex:0 0 auto;font-size:12px;color:var(--muted);
  border:1px solid rgba(255,255,255,.12);border-radius:999px;padding:3px 10px;line-height:1;
}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;padding:9px 12px;border-radius:9px;
  font-size:14.5px;color:var(--muted);white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:var(--brass-lt)}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,rgba(201,154,75,.2),var(--brass),rgba(201,154,75,.2));
}
.header-cta{flex:0 0 auto}
.icon-btn{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:10px;color:var(--text);
  border:1px solid rgba(255,255,255,.1);transition:border-color .2s ease,background .2s ease;
}
.icon-btn:hover{border-color:rgba(201,154,75,.5);background:rgba(201,154,75,.08)}
.icon-btn svg{stroke:currentColor}

.search-panel{
  display:none;position:absolute;left:0;right:0;top:100%;
  padding:14px 24px 18px;background:rgba(6,13,20,.96);
  backdrop-filter:blur(14px);border-bottom:1px solid var(--line);
}
.search-panel.is-open{display:block}
.search-panel .search-box{display:flex;min-width:0;max-width:none;width:100%}

/* 抽屉菜单 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,8,13,.68);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);z-index:95;
  background:linear-gradient(180deg,#0B1723 0%,#060D14 100%);
  border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .34s cubic-bezier(.22,.72,.3,1);
  padding:20px 20px 28px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-title{font-size:15px;color:var(--muted)}
.drawer-close{width:44px;height:44px;display:flex;align-items:center;justify-content:center;border-radius:10px;border:1px solid rgba(255,255,255,.1)}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-top:18px}
.drawer-nav a{
  display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:10px;
  font-size:15.5px;color:var(--text);border:1px solid transparent;
  transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.drawer-nav a:hover{background:rgba(255,255,255,.05);border-color:var(--stroke)}
.drawer-nav a.is-active{color:var(--brass-lt);border-color:rgba(201,154,75,.4);background:rgba(201,154,75,.08)}
.drawer-cta{margin-top:22px;width:100%}
.drawer .search-box{display:flex;width:100%;min-width:0}
.drawer .search-box .search-key{display:none}

/* ===== 面包屑 ===== */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.crumbs a{color:var(--muted);transition:color .2s ease}
.crumbs a:hover{color:var(--brass-lt)}
.crumbs .sep{color:rgba(201,154,75,.7);font-weight:400}
.crumbs .cur{color:var(--text)}

/* ===== 迷你 Hero ===== */
.page-hero{
  position:relative;overflow:hidden;
  padding:112px 0 84px;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(6,13,20,.96) 0%,rgba(6,13,20,.86) 42%,rgba(6,13,20,.55) 100%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;opacity:.05;pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='140' viewBox='0 0 240 140'%3E%3Cg fill='none' stroke='%23C99A4B' stroke-width='1.2'%3E%3Cpath d='M0 40c30 0 30-24 60-24s30 24 60 24 30-24 60-24 30 24 60 24'/%3E%3Cpath d='M0 90c30 0 30-24 60-24s30 24 60 24 30-24 60-24 30 24 60 24'/%3E%3C/g%3E%3C/svg%3E");
}
.page-hero .container{position:relative;z-index:2}
.page-hero h1{
  font-size:clamp(28px,3.6vw,44px);margin:22px 0 16px;max-width:820px;
}
.page-hero h1 .hl{color:var(--brass-lt)}
.page-lead{font-size:clamp(15px,1.4vw,17.5px);color:var(--muted);max-width:660px;line-height:1.85}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}

/* ===== 通用板块 ===== */
.section{padding-top:var(--sec-gap)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head h2{font-size:clamp(22px,2.4vw,30px)}
.section-head .sub{margin-top:10px;color:var(--muted);font-size:15px;max-width:640px}
.more-link{color:var(--brass-lt);font-size:14px;display:inline-flex;align-items:center;gap:6px;transition:gap .2s ease,color .2s ease}
.more-link:hover{gap:11px;color:#F2D49A}
.eyebrow{font-family:var(--mono);font-size:12.5px;color:rgba(201,154,75,.75);letter-spacing:2px}

/* ===== 特色区：左图右文纵列 ===== */
.feature-split{display:grid;grid-template-columns:minmax(0,420px) minmax(0,1fr);gap:56px;align-items:start}
.feature-visual{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--stroke);box-shadow:var(--shadow-card)}
.feature-visual img{width:100%;height:100%;aspect-ratio:4/5;object-fit:cover;transition:transform .6s ease}
.feature-visual:hover img{transform:scale(1.03)}
.feature-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,13,20,.06) 0%,rgba(6,13,20,.55) 100%);
}
.feature-visual .visual-note{
  position:absolute;left:20px;right:20px;bottom:20px;z-index:2;
  display:flex;align-items:center;gap:12px;
  padding:14px 16px;border-radius:12px;
  background:rgba(6,13,20,.72);border:1px solid rgba(201,154,75,.3);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}
.visual-note strong{font-family:var(--mono);font-size:20px;color:var(--brass-lt)}
.visual-note span{font-size:13px;color:var(--muted);line-height:1.5}
.feature-copy h2{font-size:clamp(22px,2.3vw,30px);margin-bottom:16px}
.feature-copy > p{color:var(--muted);max-width:44ch;line-height:1.9}
.point-list{margin-top:30px;display:flex;flex-direction:column;gap:2px}
.point{
  display:grid;grid-template-columns:64px minmax(0,1fr);gap:18px;
  padding:22px 0;border-top:1px solid var(--line);
  transition:background .25s ease;
}
.point:last-child{border-bottom:1px solid var(--line)}
.point:hover{background:rgba(201,154,75,.035)}
.point .num{font-family:var(--mono);font-size:17px;color:var(--brass);opacity:.85;padding-top:2px}
.point h3{font-size:16.5px;margin-bottom:8px}
.point p{font-size:14.5px;color:var(--muted);line-height:1.85;max-width:56ch}

/* ===== 条目网格 ===== */
.entry-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.entry-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--glass);border:1px solid var(--stroke);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.entry-card:hover{transform:translateY(-4px);border-color:rgba(201,154,75,.42);box-shadow:0 24px 46px -26px rgba(0,0,0,.85)}
.entry-thumb{position:relative;overflow:hidden}
.entry-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s ease}
.entry-card:hover .entry-thumb img{transform:scale(1.03)}
.entry-thumb::after{content:"";position:absolute;inset:0;background:rgba(6,13,20,.22)}
.entry-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto}
.entry-body h3{font-size:16.5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.entry-body p{
  font-size:14px;color:var(--muted);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.entry-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px solid rgba(255,255,255,.06);
}
.entry-foot time{font-family:var(--mono);font-size:12.5px;color:var(--muted)}
.entry-foot .arrow{color:var(--brass-lt);transition:transform .25s ease}
.entry-card:hover .entry-foot .arrow{transform:translateX(4px)}
.grid-note{
  margin-top:24px;display:flex;align-items:center;gap:10px;
  padding:14px 18px;border-radius:12px;
  background:rgba(46,127,176,.07);border:1px solid rgba(46,127,176,.22);
  color:var(--muted);font-size:13.5px;
}
.grid-note svg{stroke:var(--blue);flex:0 0 auto}

/* ===== FAQ ===== */
.faq-shell{
  background:var(--glass);border:1px solid var(--stroke);border-radius:var(--r-card);
  padding:10px 26px;box-shadow:var(--shadow-card);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
}
.faq-item{border-bottom:1px solid rgba(255,255,255,.06)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;
  padding:22px 0;text-align:left;color:var(--text);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brass-lt)}
.faq-num{font-family:var(--mono);font-size:14px;color:var(--brass);opacity:.8;flex:0 0 auto}
.faq-text{flex:1 1 auto;font-size:16px;font-weight:600;line-height:1.6}
.faq-icon{position:relative;flex:0 0 auto;width:22px;height:22px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brass-lt);border-radius:2px;
  transform:translate(-50%,-50%);transition:transform .3s ease,opacity .3s ease;
}
.faq-icon::before{width:14px;height:1.6px}
.faq-icon::after{width:1.6px;height:14px}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-item.is-open .faq-q{color:var(--brass-lt)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .32s ease}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden}
.faq-a p{padding:0 0 24px 38px;color:var(--muted);font-size:14.8px;line-height:1.9;max-width:74ch}

/* ===== 底部 CTA ===== */
.cta-band{
  position:relative;overflow:hidden;margin-top:var(--sec-gap);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(96deg,rgba(6,13,20,.96) 0%,rgba(9,20,31,.9) 55%,rgba(6,13,20,.72) 100%);
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;padding:52px 0}
.cta-inner h2{font-size:clamp(20px,2.2vw,27px);max-width:640px}
.cta-inner p{margin-top:10px;color:var(--muted);font-size:14.5px;max-width:620px}

/* ===== 页脚 ===== */
.site-footer{
  position:relative;margin-top:0;padding-top:72px;
  background:linear-gradient(180deg,#060D14 0%,#0A1622 100%);
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(201,154,75,0),rgba(201,154,75,.5),rgba(201,154,75,0));
}
.site-footer::after{
  content:"";position:absolute;inset:0;opacity:.045;pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='260' height='150' viewBox='0 0 260 150'%3E%3Cg fill='none' stroke='%232BD9C4' stroke-width='1.2'%3E%3Cpath d='M0 46c33 0 33-26 66-26s33 26 66 26 33-26 66-26 33 26 66 26'/%3E%3Cpath d='M0 104c33 0 33-26 66-26s33 26 66 26 33-26 66-26 33 26 66 26'/%3E%3C/g%3E%3C/svg%3E");
}
.footer-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:52px}
.footer-brand p{margin-top:18px;color:var(--muted);font-size:14px;line-height:1.9;max-width:34ch}
.footer-col h3{font-size:15px;margin-bottom:18px;color:var(--text)}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a,.footer-col span{font-size:14px;color:var(--muted);transition:color .2s ease}
.footer-col a:hover{color:var(--brass-lt)}
.footer-bottom{
  position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:22px 0 28px;border-top:1px solid rgba(201,154,75,.18);
  font-size:13px;color:var(--muted);
}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .search-box{min-width:280px}
  .section{padding-top:80px}
  .cta-band{margin-top:80px}
}
@media (max-width:1023px){
  :root{--sec-gap:72px}
  .header-inner{height:64px;gap:12px;padding:0 18px}
  .main-nav{display:none}
  .search-box{display:none}
  .header-cta{display:none}
  .search-toggle{display:flex}
  .icon-btn{display:flex}
  .container{padding:0 20px}
  .feature-split{grid-template-columns:minmax(0,340px) minmax(0,1fr);gap:36px}
  .entry-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:44px 0}
}
@media (max-width:767px){
  :root{--sec-gap:56px}
  body{font-size:15.5px}
  .page-hero{padding:76px 0 56px}
  .header-inner{height:64px;padding:0 16px}
  .logo-text{font-size:17px}
  .logo-text small{display:none}
  .feature-split{grid-template-columns:minmax(0,1fr);gap:30px}
  .feature-visual img{aspect-ratio:16/10}
  .point{grid-template-columns:48px minmax(0,1fr);gap:14px;padding:18px 0}
  .entry-grid{grid-template-columns:minmax(0,1fr)}
  .entry-body{padding:18px}
  .faq-shell{padding:6px 18px}
  .faq-q{padding:18px 0;gap:12px}
  .faq-text{font-size:15px}
  .faq-a p{padding-left:0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:26px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .cta-inner h2{font-size:21px}
  .grid-note{align-items:flex-start}
}
@media (max-width:420px){
  .container{padding:0 14px}
  .page-hero h1{font-size:25px}
  .btn{width:100%;padding:0 16px}
  .entry-foot{flex-wrap:wrap}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: article */
:root{
  --bg:#060D14;
  --bg-block:#0B1723;
  --glass:rgba(18,34,48,.62);
  --stroke:rgba(255,255,255,.06);
  --primary:#12405E;
  --blue2:#2E7FB0;
  --brass:#C99A4B;
  --brass-l:#E8C07A;
  --cyan:#2BD9C4;
  --text:#E8EFF5;
  --muted:#9FB3C2;
  --line:rgba(201,154,75,.18);
  --ok:#3FBF8F;
  --warn:#E2A03F;
  --err:#E06A5C;
  --r-card:16px;
  --r-btn:10px;
  --r-input:10px;
  --r-img:12px;
  --shadow-card:0 20px 40px -24px rgba(0,0,0,.75);
  --shadow-glow:0 0 0 1px rgba(201,154,75,.5),0 8px 30px -6px rgba(201,154,75,.45);
  --sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--sans);font-size:16px;line-height:1.75;font-weight:400;
  background-image:
    radial-gradient(1200px 620px at 10% -12%,rgba(18,64,94,.55),transparent 62%),
    radial-gradient(900px 520px at 100% -4%,rgba(43,217,196,.06),transparent 55%);
  background-attachment:fixed;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
a:hover{color:var(--brass-l)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.32;font-weight:700;letter-spacing:.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brass);outline-offset:2px}
.mono{font-family:var(--mono);font-weight:700;letter-spacing:.02em}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:transparent;transition:background .28s ease,backdrop-filter .28s ease}
.site-header.is-scrolled{background:rgba(6,13,20,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.site-header::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;opacity:0;transition:opacity .28s ease;
  background:linear-gradient(90deg,transparent,rgba(201,154,75,.55) 42%,rgba(201,154,75,.55) 58%,transparent)}
.site-header.is-scrolled::after{opacity:1}
.header-inner{max-width:1240px;margin:0 auto;padding:0 24px;height:76px;display:flex;align-items:center;gap:18px}

.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:rgba(18,64,94,.5);border:1px solid var(--stroke)}
.logo-text{font-size:19px;font-weight:700;color:var(--text);letter-spacing:.02em;white-space:nowrap}
.logo-text small{font-size:12px;font-weight:500;color:var(--brass);margin-left:2px}

.search-box{position:relative;display:flex;align-items:center;gap:10px;flex:1 1 auto;min-width:0;max-width:560px;height:44px;padding:0 12px;
  border-radius:12px;background:rgba(11,23,35,.72);border:1px solid var(--stroke);transition:border-color .2s,box-shadow .2s}
.search-box svg{flex:0 0 auto;color:var(--muted);stroke:currentColor}
.search-box input{flex:1 1 auto;min-width:0;height:100%;background:transparent;border:0;outline:none;color:var(--text);font-size:14px}
.search-box input::placeholder{color:#6E8497}
.search-box input::-webkit-search-cancel-button{display:none}
.search-box:focus-within{border-color:var(--brass);box-shadow:0 0 0 3px rgba(43,217,196,.14)}
.search-key{flex:0 0 auto;font-family:var(--mono);font-size:11px;padding:3px 9px;border-radius:999px;border:1px solid var(--line);color:var(--muted)}

.main-nav{display:flex;align-items:center;gap:2px;flex:0 0 auto}
.nav-link{position:relative;padding:9px 11px;border-radius:10px;font-size:14px;color:var(--muted);white-space:nowrap;transition:color .2s,background .2s}
.nav-link:hover{color:var(--text);background:rgba(201,154,75,.08)}
.nav-link.is-active{color:var(--brass-l)}
.nav-link.is-active::after{content:"";position:absolute;left:11px;right:11px;bottom:2px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--brass),var(--brass-l))}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-btn);
  border:1px solid transparent;font-size:14.5px;font-weight:700;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .22s ease,background .2s ease,color .2s ease,border-color .2s ease,filter .2s ease}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px}
.btn-primary{background:linear-gradient(180deg,#E8C07A,#C99A4B);color:#0B1723;box-shadow:var(--shadow-glow)}
.btn-primary:hover{color:#0B1723;filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(201,154,75,.6),0 14px 36px -8px rgba(201,154,75,.6)}
.btn-primary:active{transform:translateY(0);filter:brightness(.98)}
.btn-ghost{background:transparent;border-color:rgba(201,154,75,.55);color:var(--brass-l)}
.btn-ghost:hover{background:rgba(201,154,75,.1);color:var(--brass-l);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn.is-disabled,.btn:disabled{opacity:.45;pointer-events:none;transform:none}

.icon-btn{display:none;width:44px;height:44px;align-items:center;justify-content:center;border-radius:12px;
  background:rgba(11,23,35,.7);border:1px solid var(--stroke);color:var(--text);cursor:pointer;transition:border-color .2s,color .2s}
.icon-btn:hover{border-color:var(--brass);color:var(--brass-l)}
.header-cta{margin-left:auto}

/* ---------- search panel / drawer ---------- */
.search-panel{display:none;position:fixed;left:0;right:0;top:0;z-index:70;padding:16px 24px;
  background:rgba(6,13,20,.95);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);transform:translateY(-115%);transition:transform .3s ease}
.search-panel.is-open{transform:translateY(0)}
.search-panel .search-box{display:flex;width:100%;max-width:none;min-width:0}

.drawer-backdrop{position:fixed;inset:0;z-index:80;background:rgba(3,8,13,.66);opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s}
.drawer-backdrop.is-open{opacity:1;visibility:visible}
.mobile-drawer{position:fixed;top:0;right:0;bottom:0;z-index:90;width:min(88vw,340px);padding:18px;
  display:flex;flex-direction:column;gap:18px;overflow-y:auto;
  background:rgba(9,20,30,.98);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-left:1px solid var(--line);transform:translateX(105%);transition:transform .32s cubic-bezier(.4,0,.2,1)}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:12px;border-bottom:1px solid var(--line)}
.drawer-title{font-size:15px;font-weight:700;color:var(--brass-l)}
.drawer-head .icon-btn{display:flex}
.drawer-nav{display:flex;flex-direction:column;gap:8px}
.drawer-nav a{display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:12px;font-size:15px;
  background:rgba(11,23,35,.62);border:1px solid var(--stroke);transition:color .2s,border-color .2s,background .2s}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--brass-l);border-color:rgba(201,154,75,.45);background:rgba(201,154,75,.07)}
.drawer-cta{width:100%}
.drawer-note{font-size:12.5px;color:var(--muted);line-height:1.7}

/* ---------- page shell ---------- */
.page-main{padding:34px 0 0}
.crumbs{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);min-width:0}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--brass-l)}
.crumb-sep{color:var(--brass);opacity:.72}
.crumb-current{min-width:0;max-width:44vw;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:#C6D5E0}

.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:28px;margin-top:22px}
.article-main{min-width:0}

.article-card{background:var(--glass);border:1px solid var(--stroke);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);padding:34px}
.article-head{padding-bottom:22px;margin-bottom:28px;border-bottom:1px solid var(--line)}
.article-head h1{font-size:clamp(23px,3.4vw,34px);line-height:1.36;color:#fff;font-weight:700}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:16px;font-size:13px;color:var(--muted)}
.meta-row .mono{color:#C6D5E0}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--brass);opacity:.65}
.pill{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;font-size:12.5px;
  border:1px solid rgba(201,154,75,.42);background:rgba(201,154,75,.08);color:var(--brass-l)}

/* ---------- prose ---------- */
.article-body{max-width:820px;font-size:16.5px;line-height:1.9;color:#DCE7EF;word-wrap:break-word}
.article-body p{margin:0 0 1.15em}
.article-body h2{position:relative;font-size:22px;margin:1.9em 0 .8em;padding-left:14px;color:#fff}
.article-body h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--brass-l),var(--brass))}
.article-body h3{font-size:18px;margin:1.6em 0 .6em;color:var(--brass-l)}
.article-body h4{font-size:16.5px;margin:1.3em 0 .5em;color:#fff}
.article-body ul,.article-body ol{margin:0 0 1.15em;padding-left:1.35em;list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.4em 0}
.article-body li::marker{color:var(--brass)}
.article-body a{color:var(--blue2);border-bottom:1px solid rgba(46,127,176,.42)}
.article-body a:hover{color:var(--brass-l);border-bottom-color:var(--brass)}
.article-body strong{color:#fff}
.article-body blockquote{margin:1.4em 0;padding:16px 20px;border-left:3px solid var(--brass);
  background:var(--glass);border-radius:0 12px 12px 0;color:#D6E3EC}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:1.4em auto;border:1px solid var(--stroke)}
.article-body figure{margin:1.4em 0}
.article-body figcaption{margin-top:8px;text-align:center;font-size:13px;color:var(--muted)}
.article-body hr{border:0;height:1px;background:var(--line);margin:2em 0}
.article-body pre{overflow-x:auto;margin:1.4em 0;padding:16px 18px;border-radius:12px;
  background:#08131d;border:1px solid var(--stroke);font-family:var(--mono);font-size:13.5px;line-height:1.7}
.article-body code{font-family:var(--mono);font-size:.92em;background:rgba(43,217,196,.1);color:#9FE9DE;padding:2px 6px;border-radius:6px}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body .table-scroll{overflow-x:auto;margin:1.4em 0;border:1px solid var(--stroke);border-radius:12px;-webkit-overflow-scrolling:touch}
.article-body table{width:100%;border-collapse:collapse;font-size:14.5px;min-width:520px}
.article-body th{background:var(--primary);color:#fff;text-align:left;font-weight:700}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid rgba(255,255,255,.07);vertical-align:top}
.article-body tbody tr:hover{background:rgba(201,154,75,.06)}
.article-body h2,.article-body h3{scroll-margin-top:104px}

/* empty state */
.empty-state{display:flex;flex-direction:column;align-items:center;gap:14px;padding:56px 20px;text-align:center;
  border:1px dashed rgba(201,154,75,.35);border-radius:16px;background:rgba(11,23,35,.5)}
.empty-state svg{color:var(--brass)}
.empty-title{font-size:17px;font-weight:700;color:#fff}
.empty-desc{font-size:14px;color:var(--muted);max-width:420px}

/* tags */
.tag-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line)}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;font-size:12.5px;
  border:1px solid rgba(201,154,75,.4);background:rgba(201,154,75,.08);color:var(--brass-l);transition:background .2s,border-color .2s}
.tag:hover{background:rgba(201,154,75,.18);border-color:var(--brass-l)}

/* post nav */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px}
.post-nav a{display:flex;flex-direction:column;gap:6px;padding:18px;border-radius:14px;background:rgba(11,23,35,.62);
  border:1px solid var(--stroke);transition:transform .22s,border-color .22s,background .22s}
.post-nav a:hover{transform:translateY(-3px);border-color:rgba(201,154,75,.5);background:rgba(18,34,48,.72)}
.post-nav .pn-label{font-family:var(--mono);font-size:12px;color:var(--brass)}
.post-nav .pn-title{font-size:14.5px;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.post-nav .pn-title:hover{color:var(--brass-l)}

.article-foot{display:flex;flex-wrap:wrap;gap:14px;margin-top:24px}

/* related */
.related{margin-top:56px}
.section-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px;flex-wrap:wrap}
.section-head h2{font-size:20px;color:#fff;display:flex;align-items:center;gap:10px}
.section-head h2::before{content:"";width:3px;height:18px;border-radius:3px;background:linear-gradient(180deg,var(--brass-l),var(--brass))}
.section-head .more{font-size:13.5px;color:var(--brass-l)}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.rel-card{display:flex;flex-direction:column;overflow:hidden;border-radius:16px;background:var(--glass);
  border:1px solid var(--stroke);box-shadow:var(--shadow-card);transition:transform .22s,border-color .22s}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(201,154,75,.45)}
.rel-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0d1a26}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,13,20,.12),rgba(6,13,20,.38))}
.rel-body{padding:16px;display:flex;flex-direction:column;gap:10px}
.rel-body h3{font-size:15.5px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-meta{font-family:var(--mono);font-size:12px;color:var(--muted)}

/* sidebar */
.article-side{display:flex;flex-direction:column;gap:20px;min-width:0}
.widget{background:var(--glass);border:1px solid var(--stroke);border-radius:16px;padding:20px;box-shadow:var(--shadow-card)}
.widget h3{font-size:14px;color:var(--brass-l);letter-spacing:.05em;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.widget h3::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--brass)}
.toc-list li a{display:block;padding:8px 0 8px 12px;font-size:13.5px;color:var(--muted);
  border-left:2px solid rgba(255,255,255,.08);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:color .2s,border-color .2s,background .2s}
.toc-list li a:hover,.toc-list li a.is-current{color:var(--brass-l);border-left-color:var(--brass);background:rgba(201,154,75,.07)}
.hot-list li+li{margin-top:8px}
.hot-list a{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--muted);padding:6px 0;
  border-bottom:1px dashed rgba(255,255,255,.07);line-height:1.6}
.hot-list a:hover{color:var(--brass-l)}
.hot-list .idx{font-family:var(--mono);font-size:12px;color:var(--brass);flex:0 0 auto}
.widget-empty{font-size:13px;color:var(--muted);padding:6px 0}

/* cta band */
.cta-band{position:relative;overflow:hidden;margin:72px 0 0;padding:38px;border-radius:20px;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:26px;
  background-image:linear-gradient(100deg,rgba(9,22,34,.94),rgba(18,64,94,.72)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center}
.cta-band::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='70' viewBox='0 0 140 70'%3E%3Cpath d='M0 35c17 0 17-20 35-20s18 20 35 20 18-20 35-20 18 20 35 20' fill='none' stroke='%23C99A4B' stroke-width='1'/%3E%3C/svg%3E")}
.cta-band h2{font-size:22px;color:#fff;margin-bottom:8px}
.cta-band p{font-size:14.5px;color:#C6D5E0;max-width:560px}
.cta-band .cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{position:relative;margin-top:96px;background:#050B11}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(201,154,75,.6),transparent)}
.site-footer::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='70' viewBox='0 0 140 70'%3E%3Cpath d='M0 35c17 0 17-20 35-20s18 20 35 20 18-20 35-20 18 20 35 20' fill='none' stroke='%23C99A4B' stroke-width='1'/%3E%3C/svg%3E")}
.footer-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:40px;padding:64px 0 40px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.85;max-width:360px}
.footer-col h3{font-size:14px;color:var(--brass-l);margin-bottom:16px;letter-spacing:.04em}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a,.footer-col ul span{font-size:14px;color:var(--muted);transition:color .2s}
.footer-col ul a:hover{color:var(--brass-l)}
.footer-bottom{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.06);font-size:13px;color:#7E93A4;flex-wrap:wrap}

/* ---------- responsive ---------- */
@media (min-width:1200px){
  .search-box{min-width:420px}
}
@media (min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,820px) 300px;justify-content:center;gap:40px;align-items:start}
  .article-side{position:sticky;top:96px}
}
@media (max-width:1023px){
  .article-side{order:-1}
  .widget-hot{display:none}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:991px){
  .main-nav,.search-box{display:none}
  #searchToggle{display:flex}
  #menuToggle{display:flex}
  .search-panel{display:block}
  .header-inner{height:64px;gap:10px;padding:0 18px}
  .container{padding:0 18px}
  .page-main{padding:26px 0 0}
  .article-card{padding:26px}
  .cta-band{margin-top:56px;padding:28px}
  .cta-band{flex-direction:column;align-items:flex-start}
  .site-footer{margin-top:72px}
  .footer-grid{padding:48px 0 32px}
}
@media (max-width:767px){
  #searchToggle{display:none}
  .header-cta{display:none}
  .article-card{padding:20px 18px}
  .widget{padding:18px}
  .post-nav{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .related{margin-top:44px}
  .crumb-current{max-width:52vw}
  .article-body{font-size:16px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:40px 0 28px}
  .footer-bottom{justify-content:flex-start}
}
@media (max-width:420px){
  .logo-text{font-size:17px}
  .logo-mark{width:36px;height:36px}
  .article-head h1{font-size:21px}
  .cta-band{padding:22px}
  .cta-band h2{font-size:19px}
  .btn{height:42px;padding:0 18px;font-size:14px}
}

/* roulang page: category3 */
/* ============ 设计变量 ============ */
:root{
  --bg:#060D14;
  --bg-block:#0B1723;
  --glass:rgba(18,34,48,.62);
  --glass-line:rgba(255,255,255,.06);
  --steel:#12405E;
  --blue:#2E7FB0;
  --brass:#C99A4B;
  --brass-light:#E8C07A;
  --cyan:#2BD9C4;
  --text:#E8EFF5;
  --muted:#9FB3C2;
  --line:rgba(201,154,75,.18);
  --line-soft:rgba(255,255,255,.08);
  --ok:#3FBF8F;
  --warn:#E2A03F;
  --err:#E06A5C;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-card:0 20px 40px -24px rgba(0,0,0,.75), inset 0 0 0 1px rgba(255,255,255,.06);
  --shadow-glow:0 0 0 1px rgba(201,154,75,.5), 0 8px 30px -6px rgba(201,154,75,.45);
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Consolas,"Courier New",monospace;
  --gap-section:96px;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--blue);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brass-light)}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
figure{margin:0}
:focus-visible{outline:2px solid var(--brass);outline-offset:2px}
::selection{background:rgba(201,154,75,.35);color:#fff}
.mono{font-family:var(--font-mono);font-weight:700;letter-spacing:.4px}

/* ============ 容器 ============ */
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  height:76px;
  background:transparent;
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(201,154,75,.6),transparent);
  opacity:0;transition:opacity .3s ease;
}
.site-header.is-scrolled{
  background:rgba(6,13,20,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
}
.site-header.is-scrolled::after{opacity:1}
.header-inner{
  max-width:1440px;height:100%;margin:0 auto;padding:0 24px;
  display:flex;align-items:center;gap:18px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-mark{display:inline-flex;align-items:center;justify-content:center}
.logo-text{font-size:17px;font-weight:700;color:var(--text);letter-spacing:.5px;white-space:nowrap}
.logo-text small{font-size:11px;font-weight:500;color:var(--brass);margin-left:3px;letter-spacing:1.5px}
.logo:hover .logo-text{color:var(--brass-light)}

.search-box{
  position:relative;display:flex;align-items:center;gap:10px;
  flex:1 1 auto;min-width:220px;max-width:420px;height:44px;
  padding:0 12px 0 14px;border-radius:12px;
  background:rgba(11,23,35,.72);
  border:1px solid var(--line-soft);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{
  border-color:var(--brass);
  box-shadow:0 0 0 3px rgba(43,217,196,.10),0 0 24px -6px rgba(43,217,196,.45);
}
.search-box svg{flex:none;stroke:var(--muted)}
.search-box input{
  flex:1;min-width:0;height:100%;background:transparent;border:0;outline:none;
  color:var(--text);font-size:14px;
}
.search-box input::placeholder{color:#6F8595}
.search-key{
  flex:none;font-size:11px;color:var(--brass-light);
  border:1px solid var(--line);border-radius:999px;padding:3px 9px;white-space:nowrap;
}

.main-nav{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;padding:8px 10px;border-radius:8px;
  font-size:13.5px;color:var(--muted);white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-link.is-active{color:var(--brass-light)}
.nav-link.is-active::after{
  content:"";position:absolute;left:10px;right:10px;bottom:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brass),var(--brass-light));
}
.header-cta{flex:none}
.icon-btn{
  display:none;width:44px;height:44px;flex:none;
  align-items:center;justify-content:center;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line-soft);border-radius:10px;color:var(--text);
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.icon-btn:hover{border-color:var(--brass);color:var(--brass-light);background:rgba(201,154,75,.08)}

.search-panel{
  position:absolute;left:0;right:0;top:100%;display:none;
  padding:14px 24px;
  background:rgba(6,13,20,.96);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.search-panel.is-open{display:block}
.search-panel .search-box{max-width:none;margin:0 auto}

/* 抽屉 */
.drawer-overlay{
  position:fixed;inset:0;z-index:210;
  background:rgba(3,8,12,.66);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.drawer-overlay.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:220;
  width:min(340px,86vw);
  background:#0A1622;border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .32s ease;
  padding:20px;display:flex;flex-direction:column;gap:20px;overflow-y:auto;
}
.drawer.is-open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  display:flex;align-items:center;min-height:44px;padding:12px 14px;border-radius:10px;
  color:var(--muted);font-size:15px;border:1px solid transparent;
}
.drawer-nav a:hover{color:var(--brass-light);background:rgba(201,154,75,.08);border-color:var(--line)}
.drawer-nav a.is-active{color:var(--brass-light);border-color:var(--line);background:rgba(201,154,75,.08)}
body.no-scroll{overflow:hidden}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,filter .22s ease;
}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-primary{
  background:linear-gradient(135deg,var(--brass-light),var(--brass));
  color:#0A141C;box-shadow:var(--shadow-glow);
}
.btn-primary:hover{
  filter:brightness(1.08);transform:translateY(-2px);color:#0A141C;
  box-shadow:0 0 0 1px rgba(201,154,75,.6),0 14px 36px -6px rgba(201,154,75,.55);
}
.btn-primary:active{transform:none}
.btn-ghost{
  background:transparent;border-color:rgba(201,154,75,.55);color:var(--brass-light);
}
.btn-ghost:hover{background:rgba(201,154,75,.1);color:var(--brass-light)}
.btn[disabled]{opacity:.45;pointer-events:none}

/* ============ 通用板块 ============ */
.section{padding:var(--gap-section) 0}
.section--alt{background:var(--bg-block);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;flex-wrap:wrap;margin-bottom:40px}
.section-kicker{
  display:inline-block;font-size:12px;color:var(--brass);
  letter-spacing:1.5px;margin-bottom:12px;opacity:.85;
}
.section-title{font-size:clamp(22px,2.4vw,30px)}
.section-lead{color:var(--muted);font-size:16px;max-width:62ch}
.section-note{color:var(--muted);font-size:14px;max-width:36ch;margin:0}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:2px;color:var(--brass);
  border:1px solid var(--line);border-radius:999px;padding:5px 14px;background:rgba(201,154,75,.08);
}

/* ============ 面包屑 ============ */
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);margin-bottom:20px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brass-light)}
.breadcrumb .sep{color:var(--brass);opacity:.8}
.breadcrumb span[aria-current]{color:var(--text)}

/* ============ 分类头图 ============ */
.cat-hero{
  position:relative;min-height:480px;
  display:flex;align-items:flex-end;
  padding:140px 0 60px;
  background-image:linear-gradient(180deg,rgba(6,13,20,.7) 0%,rgba(6,13,20,.86) 55%,rgba(6,13,20,.96) 100%),url(/assets/images/backpic/back-3.webp);
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.hero-veil{position:absolute;inset:0;opacity:.05;pointer-events:none}
.hero-veil svg{width:100%;height:100%}
.cat-hero-inner{position:relative;z-index:1}
.cat-hero h1{
  font-size:clamp(28px,4.2vw,44px);
  margin:18px 0 16px;max-width:20ch;
}
.cat-hero-sub{color:var(--muted);font-size:17px;max-width:60ch}
.cat-hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.meta-chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;color:var(--muted);
  border:1px solid var(--line-soft);border-radius:999px;
  padding:6px 14px;background:rgba(18,34,48,.55);
}
.meta-chip .mono{color:var(--cyan)}

/* ============ 特色区（左图右文） ============ */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:52px;align-items:center}
.split-media{position:relative;border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card)}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.split-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,13,20,.12),rgba(6,13,20,.35));
  pointer-events:none;
}
.split-media figcaption{
  position:absolute;left:18px;right:18px;bottom:16px;z-index:1;
  font-size:13px;color:#D8E4EC;
  border-left:2px solid var(--brass);padding-left:12px;
}
.split-body h2{margin-bottom:16px}
.points{margin-top:28px}
.points li{
  display:flex;gap:18px;padding:18px 0;
  border-bottom:1px dashed rgba(255,255,255,.09);
}
.points li:first-child{padding-top:8px}
.points li:last-child{border-bottom:0}
.point-num{
  font-size:15px;color:var(--brass);opacity:.9;flex:none;padding-top:3px;
}
.points h3{font-size:16.5px;margin-bottom:6px}
.points p{color:var(--muted);font-size:14.5px;line-height:1.7}

/* ============ 编号网格 ============ */
.num-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.num-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--glass);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.num-card:hover{
  transform:translateY(-4px);
  box-shadow:0 26px 48px -26px rgba(0,0,0,.85), inset 0 0 0 1px rgba(201,154,75,.28);
}
.num-card-index{
  position:absolute;top:14px;left:14px;z-index:2;
  font-size:12px;color:var(--brass-light);
  background:rgba(6,13,20,.78);border:1px solid var(--line);
  border-radius:999px;padding:4px 10px;
}
.num-card-media{position:relative;overflow:hidden}
.num-card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease}
.num-card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,13,20,.12),rgba(6,13,20,.35));
}
.num-card:hover .num-card-media img{transform:scale(1.03)}
.num-card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;gap:10px}
.num-card-body h3{font-size:17px}
.num-card-body p{
  color:var(--muted);font-size:14.5px;line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.num-card-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--muted);
}
.num-card-foot .mono{color:var(--muted);font-size:12.5px}
.num-card-foot .arrow{color:var(--brass-light);opacity:.9;transition:transform .25s ease}
.num-card:hover .num-card-foot .arrow{transform:translateX(4px)}

/* ============ 核对清单 ============ */
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.check-item{
  display:flex;gap:18px;
  background:var(--glass);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:24px;
  transition:box-shadow .25s ease,transform .25s ease;
}
.check-item:hover{
  transform:translateY(-3px);
  box-shadow:0 24px 44px -26px rgba(0,0,0,.85), inset 0 0 0 1px rgba(201,154,75,.26);
}
.check-item .check-num{
  flex:none;font-size:20px;color:var(--brass);opacity:.9;line-height:1.2;
}
.check-item h3{font-size:16.5px;margin-bottom:6px}
.check-item p{color:var(--muted);font-size:14.5px;line-height:1.72}

/* ============ FAQ ============ */
.faq-list{
  background:var(--glass);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);overflow:hidden;
}
.faq-item{border-bottom:1px solid rgba(255,255,255,.06)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  display:flex;align-items:center;gap:16px;
  padding:20px 24px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--text);
  transition:background .2s ease,color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:rgba(201,154,75,.06);color:var(--brass-light)}
.faq-num{font-size:13px;color:var(--brass);flex:none}
.faq-q{flex:1}
.faq-item summary::after{
  content:"+";font-family:var(--font-mono);font-size:20px;font-weight:700;
  color:var(--brass);flex:none;transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-a{padding:0 24px 22px 62px;color:var(--muted);font-size:14.8px;line-height:1.8}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;
  padding:72px 0;
  background-image:linear-gradient(115deg,rgba(18,64,94,.62),rgba(6,13,20,.92)),url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
  border-top:1px solid var(--line);
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(20px,2.3vw,27px);margin-bottom:10px;max-width:26ch}
.cta-inner p{color:var(--muted);font-size:15px;max-width:52ch}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  background:var(--bg-block);
  border-top:1px solid var(--line);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.7fr 1fr 1fr 1.1fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand p{color:var(--muted);font-size:14px;line-height:1.8;margin-top:18px;max-width:38ch}
.footer-col h3{
  font-size:14px;color:var(--brass);letter-spacing:1px;margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--brass-light)}
.footer-col .mono{font-size:13px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.07);
  padding:20px 0;font-size:13px;color:var(--muted);
}
.footer-bottom .mono{color:#7B8FA0;font-size:12.5px}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .nav-link{font-size:13px;padding:8px 8px}
  .search-box{max-width:340px}
}
@media (max-width:1023px){
  .main-nav,.header-cta{display:none}
  .icon-btn{display:inline-flex}
  .search-box{display:none}
  .search-panel .search-box{display:flex}
  .header-inner{gap:12px}
  .split{grid-template-columns:1fr;gap:32px}
  .num-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .check-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  :root{--gap-section:72px}
  .cat-hero{min-height:420px;padding:120px 0 52px}
}
@media (max-width:767px){
  :root{--gap-section:56px}
  .container{padding:0 18px}
  .header-inner{padding:0 18px}
  .site-header{height:64px}
  .logo-text{font-size:15.5px}
  .logo-mark svg{width:30px;height:30px}
  .num-grid{grid-template-columns:1fr}
  .num-card-body{padding:18px}
  .check-item{padding:18px;gap:14px}
  .faq-item summary{padding:18px;font-size:15px;gap:12px}
  .faq-a{padding:0 18px 20px 52px;font-size:14.5px}
  .cta-band{padding:56px 0}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .cat-hero{padding:104px 0 44px;min-height:360px}
  .cat-hero-sub{font-size:15.5px}
  .section-head{margin-bottom:28px}
  .breadcrumb{font-size:12.5px}
}
@media (max-width:420px){
  body{font-size:15px}
  .logo-text small{display:none}
  .meta-chip{font-size:12px;padding:5px 11px}
  .cat-hero h1{font-size:26px}
  .btn{height:44px;padding:0 18px;font-size:14.5px}
  .num-card-foot{font-size:12.5px}
}

/* roulang page: category2 */
:root{
  --bg:#060D14;
  --panel:#0B1723;
  --glass:rgba(18,34,48,.62);
  --stroke:rgba(255,255,255,.06);
  --steel:#12405E;
  --blue:#2E7FB0;
  --brass:#C99A4B;
  --brass-lt:#E8C07A;
  --aqua:#2BD9C4;
  --text:#E8EFF5;
  --muted:#9FB3C2;
  --line:rgba(201,154,75,.18);
  --ok:#3FBF8F;
  --warn:#E2A03F;
  --err:#E06A5C;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-input:10px;
  --radius-img:12px;
  --shadow-card:0 20px 40px -24px rgba(0,0,0,.75);
  --shadow-glow:0 0 0 1px rgba(201,154,75,.5),0 8px 30px -6px rgba(201,154,75,.45);
  --mono:'JetBrains Mono','Roboto Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sans:'Noto Sans SC','Source Han Sans SC','PingFang SC','Hiragino Sans GB','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  --container:1240px;
  --sect:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  background-image:radial-gradient(1100px 520px at 82% -8%,rgba(46,127,176,.16),transparent 62%),radial-gradient(760px 420px at 6% 12%,rgba(201,154,75,.07),transparent 60%);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--blue);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:var(--brass-lt)}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{font-weight:700;line-height:1.32;margin:0;font-family:var(--sans)}
p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--brass);outline-offset:2px}
.mono{font-family:var(--mono);font-weight:700;letter-spacing:.02em}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  height:76px;
  background:transparent;
  transition:background .3s ease,backdrop-filter .3s ease,box-shadow .3s ease;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(201,154,75,.55),transparent);
  opacity:0;transition:opacity .3s ease;
}
.site-header.is-scrolled{background:rgba(6,13,20,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.site-header.is-scrolled::after{opacity:1}
.header-inner{
  max-width:var(--container);margin:0 auto;height:100%;padding:0 24px;
  display:flex;align-items:center;gap:14px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text)}
.logo:hover{color:var(--text)}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;filter:drop-shadow(0 0 12px rgba(201,154,75,.25))}
.logo-text{font-size:18px;font-weight:700;letter-spacing:.02em;white-space:nowrap}
.logo-text small{font-size:12px;font-weight:500;color:var(--brass-lt);margin-left:4px;letter-spacing:.08em}
.search-box{
  display:flex;align-items:center;gap:10px;
  flex:1 1 240px;max-width:420px;min-width:180px;height:44px;
  padding:0 10px 0 14px;
  border-radius:12px;
  background:rgba(11,23,35,.78);
  border:1px solid rgba(255,255,255,.08);
  transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
.search-box svg{stroke:var(--muted);flex:0 0 auto;transition:stroke .22s ease}
.search-box input{
  flex:1 1 auto;min-width:0;height:100%;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--text);
}
.search-box input::placeholder{color:#7C8FA0}
.search-box:focus-within{border-color:var(--brass);box-shadow:0 0 0 3px rgba(43,217,196,.14),0 0 22px -6px rgba(43,217,196,.4)}
.search-box:focus-within svg{stroke:var(--brass-lt)}
.search-key{
  flex:0 0 auto;font-size:11.5px;color:var(--brass-lt);
  border:1px solid rgba(201,154,75,.35);background:rgba(201,154,75,.08);
  border-radius:999px;padding:3px 10px;letter-spacing:.06em;
}
.main-nav{display:flex;align-items:center;gap:2px;flex:0 0 auto}
.nav-link{
  display:inline-block;padding:8px 9px;border-radius:8px;
  font-size:13.5px;color:var(--muted);white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--brass-lt);background:rgba(201,154,75,.07)}
.nav-link.is-active{color:var(--text);background:rgba(18,64,94,.55);box-shadow:inset 0 0 0 1px rgba(201,154,75,.22)}
.header-cta{flex:0 0 auto}
.icon-btn{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:10px;color:var(--text);
  border:1px solid rgba(255,255,255,.08);background:rgba(11,23,35,.7);
  transition:border-color .2s ease,color .2s ease;
}
.icon-btn:hover{border-color:var(--brass);color:var(--brass-lt)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);font-weight:600;font-size:15px;
  padding:13px 26px;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(180deg,#DDAE5F 0%,#C99A4B 55%,#A87C33 100%);
  color:#12191F;
  box-shadow:0 0 0 1px rgba(201,154,75,.5),0 8px 30px -6px rgba(201,154,75,.45);
}
.btn-primary:hover{color:#12191F;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(232,192,122,.65),0 14px 38px -6px rgba(201,154,75,.6);filter:brightness(1.08)}
.btn-primary:active{transform:translateY(0);filter:brightness(.98)}
.btn-ghost{background:transparent;border-color:rgba(201,154,75,.55);color:var(--brass-lt)}
.btn-ghost:hover{background:rgba(201,154,75,.1);color:var(--brass-lt);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:9px 18px;font-size:13.5px}
.btn[disabled],.btn.is-disabled{opacity:.45;transform:none;pointer-events:none}

/* search panel (tablet) */
.search-panel{
  display:none;position:absolute;top:100%;left:0;right:0;
  padding:16px 24px;background:rgba(6,13,20,.96);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.search-panel.is-open{display:block}
.search-panel .search-box{max-width:none;width:100%}

/* drawer */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);z-index:120;
  background:linear-gradient(180deg,#0B1723,#060D14);
  border-left:1px solid var(--line);
  transform:translateX(104%);transition:transform .32s cubic-bezier(.4,0,.2,1);
  padding:18px 20px 32px;overflow-y:auto;display:flex;flex-direction:column;gap:20px;
}
.drawer.is-open{transform:translateX(0)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,7,11,.68);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-nav a{
  display:block;padding:13px 14px;border-radius:10px;font-size:15px;color:var(--text);
  border:1px solid rgba(255,255,255,.06);background:rgba(18,34,48,.5);
}
.drawer-nav a:hover{border-color:var(--brass);color:var(--brass-lt)}
.drawer-nav a.is-active{border-color:rgba(201,154,75,.5);background:rgba(18,64,94,.6);color:var(--brass-lt)}
.drawer .search-box{max-width:none;width:100%;min-width:0}

/* ---------- Sections ---------- */
.section{padding:var(--sect) 0}
.section--tight{padding:64px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:44px;flex-wrap:wrap}
.sec-title{font-size:clamp(24px,2.7vw,34px);border-left:3px solid var(--brass);padding-left:16px}
.sec-title .num{font-family:var(--mono);color:var(--brass);opacity:.7;font-size:.6em;margin-right:10px;letter-spacing:.06em}
.sec-desc{color:var(--muted);margin-top:14px;max-width:720px;font-size:15px}
.sec-link{font-size:14px;color:var(--brass-lt);display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.sec-link:hover{gap:10px}

/* ---------- Page hero ---------- */
.page-hero{position:relative;overflow:hidden;padding:80px 0 72px;border-bottom:1px solid rgba(201,154,75,.14)}
.page-hero .hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center right;
  opacity:.42;
}
.page-hero .hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(6,13,20,.96) 0%,rgba(6,13,20,.86) 44%,rgba(6,13,20,.55) 100%);
}
.page-hero .hero-vein{position:absolute;inset:0;opacity:.06;pointer-events:none}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);margin-bottom:22px;flex-wrap:wrap}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brass-lt)}
.breadcrumb .sep{color:rgba(201,154,75,.6)}
.page-hero h1{font-size:clamp(28px,3.6vw,44px);letter-spacing:.01em;max-width:820px}
.hero-sub{margin-top:20px;color:var(--muted);font-size:16.5px;max-width:680px;line-height:1.8}
.hero-actions{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.hero-tags{display:flex;gap:10px;margin-top:28px;flex-wrap:wrap}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:999px;font-size:12.5px;
  color:var(--brass-lt);background:rgba(201,154,75,.08);
  border:1px solid rgba(201,154,75,.34);
}
.pill--aqua{color:var(--aqua);background:rgba(43,217,196,.08);border-color:rgba(43,217,196,.3)}

/* ---------- Feature split ---------- */
.feature-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:52px;align-items:center}
.feature-media{position:relative;border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card)}
.feature-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.feature-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,13,20,.12),rgba(6,13,20,.55))}
.feature-media .media-cap{
  position:absolute;left:0;right:0;bottom:0;z-index:2;padding:20px 22px;
  font-size:13px;color:var(--muted);
}
.points{display:flex;flex-direction:column;gap:18px;margin-top:28px}
.point{display:flex;gap:16px;padding:18px 20px;border-radius:14px;background:var(--glass);border:1px solid var(--stroke);box-shadow:var(--shadow-card);transition:transform .25s ease,border-color .25s ease}
.point:hover{transform:translateY(-4px);border-color:rgba(201,154,75,.34)}
.point-idx{font-family:var(--mono);font-weight:700;color:var(--brass);font-size:14px;padding-top:3px;opacity:.9}
.point h3{font-size:16.5px;margin-bottom:6px}
.point p{font-size:14.5px;color:var(--muted);line-height:1.7}

/* ---------- Timeline ---------- */
.timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:60px 24px}
.tl-item{position:relative}
.tl-axis{position:relative;height:36px;display:flex;align-items:center}
.tl-axis::before{
  content:"";position:absolute;left:-12px;right:-12px;top:50%;height:1px;
  background:linear-gradient(90deg,rgba(201,154,75,.34),rgba(201,154,75,.14));
}
.tl-dot{
  position:relative;width:11px;height:11px;border-radius:50%;
  background:var(--brass);box-shadow:0 0 0 4px rgba(201,154,75,.14);flex:0 0 auto;
}
.tl-date{margin-left:14px;font-family:var(--mono);font-size:12.5px;color:var(--brass-lt);white-space:nowrap}
.tl-card{
  border-radius:var(--radius-card);overflow:hidden;
  background:var(--glass);border:1px solid var(--stroke);box-shadow:var(--shadow-card);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.tl-card:hover{transform:translateY(-4px);border-color:rgba(201,154,75,.36);box-shadow:0 26px 46px -26px rgba(0,0,0,.85)}
.tl-thumb{position:relative;overflow:hidden}
.tl-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease}
.tl-card:hover .tl-thumb img{transform:scale(1.03)}
.tl-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,13,20,.1),rgba(6,13,20,.42))}
.tl-body{padding:22px}
.tl-body h3{font-size:18px;margin-bottom:10px}
.tl-body p{font-size:14.5px;color:var(--muted);line-height:1.72;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.tl-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px;padding-top:14px;border-top:1px solid rgba(201,154,75,.14)}
.tl-foot .mono{font-size:12.5px;color:var(--muted)}
.tl-foot a{font-size:13.5px;color:var(--brass-lt);display:inline-flex;align-items:center;gap:6px}

/* ---------- Metrics ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.metric{
  padding:24px;border-radius:14px;background:var(--glass);
  border:1px solid var(--stroke);box-shadow:var(--shadow-card);
  transition:transform .25s ease,border-color .25s ease;
}
.metric:hover{transform:translateY(-4px);border-color:rgba(201,154,75,.3)}
.metric .val{font-family:var(--mono);font-weight:700;font-size:30px;color:var(--brass-lt);line-height:1.1}
.metric .val span{font-size:14px;color:var(--muted);margin-left:4px;font-weight:500}
.metric h3{font-size:15px;margin:12px 0 6px}
.metric p{font-size:13.5px;color:var(--muted);line-height:1.66}

/* ---------- Scene cards ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scene-card{
  border-radius:var(--radius-card);overflow:hidden;background:var(--glass);
  border:1px solid var(--stroke);box-shadow:var(--shadow-card);
  transition:transform .25s ease,border-color .25s ease;
}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(201,154,75,.34)}
.scene-card .thumb{position:relative;overflow:hidden}
.scene-card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease}
.scene-card:hover .thumb img{transform:scale(1.03)}
.scene-card .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,13,20,.12),rgba(6,13,20,.48))}
.scene-card .body{padding:24px}
.scene-card h3{font-size:17.5px;margin-bottom:10px}
.scene-card p{font-size:14.5px;color:var(--muted);line-height:1.72}
.scene-meta{display:flex;gap:8px;margin-top:16px;flex-wrap:wrap}

/* ---------- FAQ ---------- */
.faq-wrap{
  border-radius:var(--radius-card);background:var(--glass);
  border:1px solid var(--stroke);box-shadow:var(--shadow-card);
  padding:12px 24px;
}
.faq-item{border-bottom:1px solid rgba(201,154,75,.14)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  padding:22px 0;font-size:16.5px;font-weight:600;color:var(--text);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brass-lt)}
.faq-num{font-family:var(--mono);font-weight:700;font-size:13.5px;color:var(--brass);opacity:.85;flex:0 0 auto}
.faq-text{flex:1 1 auto}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 auto}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brass);
  transform:translate(-50%,-50%);transition:transform .3s ease,opacity .3s ease;
}
.faq-icon::before{width:14px;height:1.5px}
.faq-icon::after{width:1.5px;height:14px}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-item.is-open .faq-q{color:var(--brass-lt)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease}
.faq-a p{padding:0 0 24px 32px;color:var(--muted);font-size:15px;line-height:1.82}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;
  border:1px solid rgba(201,154,75,.28);
  background:linear-gradient(120deg,rgba(18,64,94,.85),rgba(11,23,35,.9) 62%);
  box-shadow:var(--shadow-card);
  padding:48px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band .vein{position:absolute;inset:0;opacity:.06;pointer-events:none}
.cta-band h2{font-size:clamp(21px,2.4vw,28px);position:relative;z-index:2}
.cta-band p{position:relative;z-index:2;color:var(--muted);margin-top:12px;font-size:15px;max-width:560px}
.cta-band .btn{position:relative;z-index:2}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:24px;padding-top:72px;
  background:linear-gradient(180deg,rgba(11,23,35,.6),rgba(6,13,20,1));
  border-top:1px solid transparent;
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(201,154,75,.55),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-brand p{color:var(--muted);font-size:14px;line-height:1.78;margin-top:18px;max-width:320px}
.footer-col h3{font-size:14px;color:var(--brass-lt);letter-spacing:.06em;margin-bottom:18px;font-weight:700}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a,.footer-col span{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--brass-lt)}
.footer-col .mono{font-size:13px;color:var(--muted);font-weight:500}
.footer-bottom{
  margin-top:56px;padding:22px 0 30px;border-top:1px solid rgba(201,154,75,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7C8FA0;
}
.footer-bottom .mono{color:#7C8FA0;font-weight:500}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  .header-inner{gap:10px}
  .nav-link{font-size:13px;padding:7px 7px}
  .search-box{flex:1 1 200px}
}
@media (max-width:1023px){
  :root{--sect:72px}
  .main-nav,.header-cta{display:none}
  .icon-btn{display:inline-flex}
  .search-box{display:none}
  .search-panel .search-box{display:flex}
  .site-header{height:64px}
  .header-inner{gap:10px}
  .feature-grid{grid-template-columns:1fr;gap:36px}
  .timeline{grid-template-columns:repeat(2,1fr)}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:767px){
  :root{--sect:56px}
  .container{padding:0 18px}
  .header-inner{padding:0 18px}
  .logo-text{font-size:16px}
  .logo-text small{font-size:11px}
  body{font-size:15.5px}
  .page-hero{padding:52px 0 48px}
  .page-hero .hero-bg{background-position:center}
  .page-hero .hero-bg::after{background:linear-gradient(180deg,rgba(6,13,20,.92),rgba(6,13,20,.78))}
  .hero-actions .btn{width:100%}
  .timeline{grid-template-columns:1fr;gap:40px}
  .tl-axis::before{left:0;right:auto;width:100%}
  .metrics{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:1fr}
  .faq-wrap{padding:6px 18px}
  .faq-a p{padding-left:0}
  .cta-band{padding:34px 22px}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:420px){
  .logo-text small{display:none}
  .sec-title{font-size:22px}
  .tl-body{padding:18px}
  .scene-card .body{padding:18px}
}

/* roulang page: category4 */
:root{
  --bg:#060D14;
  --bg-section:#0B1723;
  --glass:rgba(18,34,48,.62);
  --glass-strong:rgba(18,34,48,.86);
  --stroke:rgba(255,255,255,.06);
  --primary:#12405E;
  --blue:#2E7FB0;
  --brass:#C99A4B;
  --brass-light:#E8C07A;
  --cyan:#2BD9C4;
  --text:#E8EFF5;
  --muted:#9FB3C2;
  --line:rgba(201,154,75,.18);
  --ok:#3FBF8F;
  --warn:#E2A03F;
  --err:#E06A5C;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-input:10px;
  --radius-img:12px;
  --shadow-card:0 20px 40px -24px rgba(0,0,0,.75);
  --shadow-glow:0 0 0 1px rgba(201,154,75,.5),0 8px 30px -6px rgba(201,154,75,.45);
  --sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
  --container:1240px;
  --header-h:76px;
  --space-section:96px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brass-light);text-decoration:none;transition:color .25s ease,opacity .25s ease;}
a:hover{color:#fff;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:.005em;}
p{margin:0;}
:focus-visible{outline:2px solid var(--brass);outline-offset:3px;}
.mono{font-family:var(--mono);font-weight:700;font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  height:var(--header-h);
  background:rgba(6,13,20,0);
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(201,154,75,.55),transparent);
  opacity:0;transition:opacity .3s ease;
}
.site-header.is-scrolled{
  background:rgba(6,13,20,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:0 12px 30px -20px rgba(0,0,0,.9);
}
.site-header.is-scrolled::after{opacity:1;}

.header-inner{
  max-width:var(--container);margin:0 auto;padding:0 24px;
  height:100%;display:flex;align-items:center;gap:18px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text);}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;}
.logo-text{font-size:19px;font-weight:700;letter-spacing:.02em;white-space:nowrap;}
.logo-text small{font-size:12px;font-weight:500;color:var(--brass-light);margin-left:4px;letter-spacing:.14em;}

.search-box{
  flex:1 1 auto;max-width:520px;min-width:420px;
  display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;
  background:rgba(11,23,35,.75);
  border:1px solid var(--stroke);
  border-radius:12px;
  transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.search-box svg{stroke:var(--muted);flex:0 0 auto;transition:stroke .25s ease;}
.search-box input{
  flex:1 1 auto;min-width:0;height:100%;
  background:transparent;border:none;outline:none;
  color:var(--text);font-size:14px;
}
.search-box input::placeholder{color:rgba(159,179,194,.72);}
.search-box:focus-within{
  border-color:var(--brass);
  background:rgba(11,23,35,.95);
  box-shadow:0 0 0 3px rgba(43,217,196,.14),0 8px 24px -14px rgba(201,154,75,.7);
}
.search-box:focus-within svg{stroke:var(--brass-light);}
.search-key{
  flex:0 0 auto;font-size:11px;color:var(--brass-light);
  border:1px solid var(--line);border-radius:999px;
  padding:2px 9px;letter-spacing:.08em;
}

.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;
  display:inline-block;padding:8px 11px;border-radius:9px;
  font-size:13.5px;color:var(--muted);white-space:nowrap;
  transition:color .22s ease,background .22s ease;
}
.nav-link:hover{color:var(--text);background:rgba(46,127,176,.12);}
.nav-link.is-active{color:var(--brass-light);}
.nav-link.is-active::after{
  content:"";position:absolute;left:11px;right:11px;bottom:2px;height:1.5px;
  background:linear-gradient(90deg,transparent,var(--brass),transparent);
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);
  font-weight:700;font-size:15px;
  padding:12px 22px;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease;
}
.btn-primary{
  background:linear-gradient(180deg,#E8C07A,#C99A4B);
  color:#1A1206;
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{
  transform:translateY(-2px);
  filter:brightness(1.08);
  box-shadow:0 0 0 1px rgba(232,192,122,.62),0 12px 38px -6px rgba(201,154,75,.6);
  color:#1A1206;
}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  border:1px solid rgba(201,154,75,.55);
  color:var(--brass-light);
}
.btn-ghost:hover{background:rgba(201,154,75,.12);color:#fff;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{padding:9px 16px;font-size:13.5px;}
.header-cta{flex:0 0 auto;margin-left:8px;}

.icon-btn{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:10px;
  color:var(--muted);border:1px solid var(--stroke);
  transition:color .22s ease,border-color .22s ease,background .22s ease;
}
.icon-btn:hover{color:var(--brass-light);border-color:rgba(201,154,75,.5);background:rgba(201,154,75,.08);}

/* 搜索展开面板（平板 / 移动） */
.search-panel{
  display:none;position:absolute;top:100%;left:0;right:0;
  padding:14px 24px;background:rgba(6,13,20,.96);
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.search-panel.is-open{display:block;}
.search-panel .search-box{max-width:none;min-width:0;}

/* 抽屉菜单 */
.drawer-backdrop{
  position:fixed;inset:0;background:rgba(3,7,11,.68);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;z-index:90;
}
.drawer-backdrop.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(88vw,360px);z-index:100;
  background:rgba(9,19,29,.97);
  border-left:1px solid var(--line);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  transform:translateX(100%);
  transition:transform .34s cubic-bezier(.4,0,.2,1);
  padding:22px 20px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-title{font-size:15px;color:var(--brass-light);font-weight:700;letter-spacing:.06em;}
.drawer .search-box{min-width:0;max-width:none;margin-bottom:22px;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  display:flex;align-items:center;min-height:48px;padding:0 14px;
  border-radius:10px;color:var(--text);font-size:15px;
  border:1px solid transparent;
  transition:background .22s ease,border-color .22s ease,color .22s ease;
}
.drawer-nav a:hover,.drawer-nav a.is-active{
  background:rgba(201,154,75,.1);border-color:var(--line);color:var(--brass-light);
}
.drawer .btn{width:100%;margin-top:22px;}

/* ============ 通用板块 ============ */
main{display:block;}
.section{padding:var(--space-section) 0;}
.section-alt{background:var(--bg-section);}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:40px;flex-wrap:wrap;
}
.section-head h2{font-size:clamp(22px,2.6vw,30px);}
.section-head .head-note{font-size:14px;color:var(--muted);max-width:560px;}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:12px;letter-spacing:.22em;
  color:var(--brass);text-transform:uppercase;margin-bottom:14px;
}
.section-eyebrow::before{content:"";width:24px;height:1px;background:var(--brass);opacity:.7;}
.lead{color:var(--muted);font-size:16px;line-height:1.9;max-width:760px;}

.badge{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.06em;
  color:var(--brass-light);
  background:rgba(201,154,75,.08);
  border:1px solid rgba(201,154,75,.42);
}

/* ============ 迷你 Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:64px 0 72px;
  border-bottom:1px solid var(--stroke);
}
.page-hero-bg{
  position:absolute;inset:0;z-index:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
}
.page-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(4,10,16,.94) 0%,rgba(5,12,19,.86) 46%,rgba(6,13,20,.62) 100%);
}
.page-hero-veins{
  position:absolute;right:-4%;top:-6%;width:56%;max-width:720px;z-index:1;
  opacity:.05;pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);margin-bottom:22px;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brass-light);}
.breadcrumb .sep{color:var(--brass);font-weight:700;transform:skewX(-12deg);display:inline-block;}
.breadcrumb .current{color:var(--text);}
.page-hero h1{
  font-size:clamp(26px,3.6vw,42px);
  line-height:1.28;max-width:900px;
}
.page-hero .hero-sub{
  margin-top:18px;font-size:clamp(15px,1.6vw,18px);
  color:var(--brass-light);font-weight:500;max-width:760px;
}
.page-hero .hero-desc{
  margin-top:14px;color:var(--muted);font-size:15px;line-height:1.9;max-width:720px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:32px;
  padding-top:22px;border-top:1px solid var(--stroke);
}
.hero-meta span{font-size:13px;color:var(--muted);}
.hero-meta .mono{color:var(--text);margin-left:6px;}

/* ============ 特色区 ============ */
.feature-figure{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-card);border:1px solid var(--stroke);
}
.feature-figure img{width:100%;height:300px;object-fit:cover;}
.feature-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,13,20,.12),rgba(6,13,20,.62));
}
.feature-figure figcaption{
  position:absolute;left:20px;bottom:16px;z-index:2;
  font-size:13px;color:var(--text);letter-spacing:.02em;
}
.feature-points{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:28px;
}
.point-card{
  background:var(--glass);border:1px solid var(--stroke);
  border-radius:var(--radius-card);padding:24px;
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,border-color .25s ease;
}
.point-card:hover{transform:translateY(-4px);border-color:rgba(201,154,75,.42);}
.point-card .num{
  font-family:var(--mono);font-weight:700;font-size:13px;
  color:var(--brass);opacity:.9;letter-spacing:.14em;
}
.point-card h3{margin:12px 0 10px;font-size:18px;}
.point-card p{color:var(--muted);font-size:14.5px;line-height:1.85;}

/* ============ 对照表 ============ */
.table-wrap{
  border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--stroke);box-shadow:var(--shadow-card);
  background:var(--glass);
}
.compare-table{width:100%;border-collapse:collapse;font-size:14.5px;}
.compare-table caption{
  caption-side:top;text-align:left;
  padding:20px 24px 0;font-size:15px;color:var(--muted);
}
.compare-table thead th{
  background:linear-gradient(180deg,#E8C07A,#C99A4B);
  color:#1A1206;font-weight:700;text-align:left;
  padding:14px 24px;font-size:14px;letter-spacing:.02em;
}
.compare-table tbody th{
  text-align:left;padding:16px 24px;font-weight:700;color:var(--text);
  border-bottom:1px solid var(--stroke);background:rgba(18,64,94,.4);
  width:22%;font-size:14px;vertical-align:top;
}
.compare-table tbody td{
  padding:16px 24px;border-bottom:1px solid var(--stroke);
  color:var(--muted);vertical-align:top;line-height:1.8;
}
.compare-table tbody tr{transition:background .22s ease;}
.compare-table tbody tr:hover{background:rgba(46,127,176,.1);}
.compare-table tbody td.good{color:var(--text);}
.compare-table tbody td.good::before{
  content:"";display:inline-block;width:6px;height:6px;border-radius:50%;
  background:var(--cyan);margin-right:9px;vertical-align:middle;
}
.compare-table tbody td.plain::before{
  content:"";display:inline-block;width:6px;height:6px;border-radius:50%;
  background:rgba(159,179,194,.5);margin-right:9px;vertical-align:middle;
}
.compare-table tr:last-child th,.compare-table tr:last-child td{border-bottom:none;}
.table-note{
  margin-top:16px;font-size:13px;color:var(--muted);
  display:flex;align-items:center;gap:8px;
}
.table-note .dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);flex:0 0 auto;}

/* ============ 条目网格 ============ */
.entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.entry-card{
  display:flex;flex-direction:column;
  background:var(--glass);border:1px solid var(--stroke);
  border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.entry-card:hover{transform:translateY(-4px);border-color:rgba(201,154,75,.45);}
.entry-thumb{position:relative;overflow:hidden;aspect-ratio:16/9;background:#0B1723;}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.entry-card:hover .entry-thumb img{transform:scale(1.03);}
.entry-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,13,20,.1),rgba(6,13,20,.35));
}
.entry-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.entry-body h3{font-size:17.5px;line-height:1.5;}
.entry-body p{
  margin-top:10px;color:var(--muted);font-size:14px;line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.entry-foot{
  margin-top:auto;padding-top:18px;display:flex;align-items:center;
  justify-content:space-between;gap:12px;
  border-top:1px solid var(--stroke);
}
.entry-date{font-size:12.5px;color:var(--muted);font-family:var(--mono);font-weight:700;}
.entry-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:700;color:var(--brass-light);
}
.entry-link svg{transition:transform .25s ease;}
.entry-link:hover svg{transform:translateX(4px);}

/* ============ FAQ ============ */
.faq-wrap{
  background:var(--glass);border:1px solid var(--stroke);
  border-radius:var(--radius-card);padding:12px 24px;
  box-shadow:var(--shadow-card);
}
.faq-item{border-bottom:1px solid var(--stroke);}
.faq-item:last-child{border-bottom:none;}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;
  padding:22px 0;text-align:left;color:var(--text);
  font-size:16px;font-weight:700;line-height:1.6;
  transition:color .22s ease;
}
.faq-q:hover{color:var(--brass-light);}
.faq-num{
  font-family:var(--mono);font-weight:700;font-size:13px;
  color:var(--brass);flex:0 0 auto;letter-spacing:.1em;
}
.faq-text{flex:1 1 auto;}
.faq-icon{
  position:relative;flex:0 0 auto;width:20px;height:20px;
  transition:transform .3s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brass-light);border-radius:2px;
  transition:opacity .3s ease,transform .3s ease;
}
.faq-icon::before{left:0;top:9px;width:20px;height:1.6px;}
.faq-icon::after{left:9px;top:0;width:1.6px;height:20px;}
.faq-item.is-open .faq-icon{transform:rotate(90deg);}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .38s ease;
}
.faq-a p{
  padding:0 0 24px 40px;color:var(--muted);
  font-size:14.5px;line-height:1.95;
}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;overflow:hidden;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:linear-gradient(120deg,rgba(18,64,94,.55),rgba(6,13,20,.92));
}
.cta-band-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;
  opacity:.2;
}
.cta-band .container{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;
  gap:28px;flex-wrap:wrap;padding-top:52px;padding-bottom:52px;
}
.cta-band h2{font-size:clamp(20px,2.4vw,26px);max-width:620px;}
.cta-band p{margin-top:10px;color:var(--muted);font-size:14.5px;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  background:#050A10;
  padding-top:64px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(201,154,75,.5),transparent);
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:46px;
}
.footer-brand p{
  margin-top:16px;color:var(--muted);font-size:14px;line-height:1.9;max-width:340px;
}
.footer-col h3{
  font-size:14px;color:var(--brass-light);letter-spacing:.08em;
  margin-bottom:18px;font-weight:700;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col li{font-size:14px;color:var(--muted);}
.footer-col a{color:var(--muted);}
.footer-col a:hover{color:var(--brass-light);}
.footer-col .mono{font-size:13.5px;color:var(--muted);font-weight:700;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 28px;border-top:1px solid var(--stroke);
  font-size:13px;color:rgba(159,179,194,.78);
}
.footer-bottom .mono{font-size:12.5px;letter-spacing:.08em;color:rgba(159,179,194,.62);}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .main-nav{gap:0;}
  .nav-link{font-size:13px;padding:8px 9px;}
  .search-box{min-width:340px;}
}

@media (max-width:1023px){
  :root{--space-section:72px;--header-h:64px;}
  .main-nav,.header-cta{display:none;}
  .search-toggle{display:inline-flex;}
  #menuToggle{display:inline-flex;}
  .search-box{display:none;}
  .header-inner{gap:12px;}
  .feature-points{grid-template-columns:1fr;}
  .entry-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .page-hero{padding:48px 0 56px;}
  .page-hero-veins{width:80%;opacity:.04;}
}

@media (max-width:767px){
  :root{--space-section:56px;}
  .container{padding:0 18px;}
  .header-inner{padding:0 18px;}
  .search-toggle{display:none;}
  .page-hero{padding:36px 0 46px;}
  .page-hero .hero-desc{font-size:14.5px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .feature-figure img{height:220px;}
  .point-card{padding:18px;}
  .entry-grid{grid-template-columns:1fr;}
  .entry-body{padding:18px;}
  .faq-wrap{padding:6px 18px;}
  .faq-q{font-size:15px;padding:18px 0;}
  .faq-a p{padding-left:0;}
  .cta-band .container{padding-top:40px;padding-bottom:40px;flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}

  /* 对照表转卡片 */
  .compare-table caption{padding:16px 18px 0;font-size:14px;}
  .compare-table thead{display:none;}
  .compare-table tbody tr{
    display:block;margin:14px 16px;padding:16px 18px;
    background:rgba(11,23,35,.9);
    border:1px solid var(--stroke);border-radius:14px;
  }
  .compare-table tbody th{
    display:block;width:auto;background:transparent;border-bottom:1px solid var(--stroke);
    padding:0 0 12px;margin-bottom:12px;font-size:15px;color:var(--brass-light);
  }
  .compare-table tbody td{
    display:block;padding:8px 0;border-bottom:none;font-size:14px;
  }
  .compare-table tbody td::before{
    content:attr(data-label);display:block;
    font-size:11.5px;color:var(--brass);letter-spacing:.1em;margin-bottom:5px;
    font-family:var(--mono);font-weight:700;
  }
  .compare-table tbody td:last-child{padding-bottom:0;}
}

@media (max-width:420px){
  .logo-text{font-size:17px;}
  .logo-text small{font-size:11px;}
  .page-hero h1{font-size:24px;}
  .section-head h2{font-size:20px;}
  .entry-thumb{aspect-ratio:4/3;}
  .hero-meta{gap:10px 18px;}
}