/* ============================================================
   逍遥建站 · 官网视觉系统（黑金 · 奢华）
   零依赖、纯 CSS；自适应断点 1200 / 980 / 720 / 480
   ============================================================ */
:root{
  --ink:#07070a;
  --ink-2:#0b0b10;
  --ink-3:#101017;
  --gold:#c9a227;
  --gold-2:#f3dc9a;
  --gold-3:#8a6a1c;
  --gold-soft:rgba(201,162,39,.14);
  --text:#ece7db;
  --muted:#9d9789;
  --muted-2:#6f6a5f;
  --line:rgba(201,162,39,.16);
  --line-2:rgba(255,255,255,.07);
  --radius:16px;
  --serif:"Noto Serif SC","Songti SC","Source Han Serif SC",Georgia,"Times New Roman",serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --shadow:0 24px 70px -30px rgba(0,0,0,.9);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--ink);color:var(--text);font-family:var(--sans);
  font-size:15.5px;line-height:1.75;-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
/* 背景：金色光晕 + 细网格 + 顶部渐隐 */
body::before{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(201,162,39,.16), transparent 62%),
    radial-gradient(760px 480px at 92% 4%, rgba(201,162,39,.10), transparent 60%),
    radial-gradient(1000px 700px at 50% 108%, rgba(201,162,39,.07), transparent 62%),
    linear-gradient(180deg,#07070a 0%,#0a0a0e 42%,#07070a 100%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.5;
  background-image:
    linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 78%);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
::selection{background:rgba(201,162,39,.32);color:#fff}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 28px}
.narrow{max-width:880px}
.section{padding:110px 0;position:relative}
.section.tight{padding:74px 0}
.section-line{border-top:1px solid var(--line-2)}

/* ---------------- 导航 ---------------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:60;transition:.38s ease;padding:18px 0}
.nav-in{display:flex;align-items:center;gap:14px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.mark{
  width:36px;height:36px;flex:0 0 auto;border-radius:10px;
  background:linear-gradient(145deg,#f6e3a1,#c9a227 48%,#7d5f14);
  color:#12100a;display:grid;place-items:center;font-family:var(--serif);
  font-size:19px;font-weight:700;letter-spacing:-.5px;
  box-shadow:0 6px 22px -8px rgba(201,162,39,.75),inset 0 1px 0 rgba(255,255,255,.5);
}
.brand-tx b{display:block;font-family:var(--serif);font-size:16.5px;letter-spacing:.14em;color:#f6efdc;line-height:1.25}
.brand-tx span{display:block;font-size:9.5px;letter-spacing:.34em;color:var(--muted-2);text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:22px}
.nav-links a{
  position:relative;padding:9px 14px;font-size:14px;color:#bdb7a8;border-radius:9px;transition:.25s;
}
.nav-links a:hover{color:var(--gold-2);background:rgba(201,162,39,.07)}
.nav-links a.on{color:var(--gold-2)}
.nav-links a.on::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:1px;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);
}
.nav .sp{flex:1}
.nav.scrolled{padding:10px 0;background:rgba(8,8,11,.82);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.nav-burger{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--gold-2);font-size:18px;cursor:pointer}
.drawer{display:none}

/* ---------------- 按钮 ---------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:11px;font-size:14.5px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;transition:.28s ease;white-space:nowrap;
}
.btn-gold{
  background:linear-gradient(135deg,#f8e8b2 0%,#e2c266 26%,#c9a227 62%,#a07d18 100%);
  color:#171308;box-shadow:0 16px 40px -18px rgba(201,162,39,.9),inset 0 1px 0 rgba(255,255,255,.55);
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 22px 52px -18px rgba(201,162,39,1),inset 0 1px 0 rgba(255,255,255,.6)}
.btn-ghost{background:rgba(201,162,39,.05);border-color:rgba(201,162,39,.42);color:var(--gold-2)}
.btn-ghost:hover{background:rgba(201,162,39,.13);border-color:var(--gold);color:#fff8e2;transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:13px;border-radius:9px}
.btn-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}

/* ---------------- 标题体系 ---------------- */
.kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-size:11px;letter-spacing:.36em;text-transform:uppercase;color:var(--gold);font-weight:600;
}
.kicker::before{content:"";width:26px;height:1px;background:linear-gradient(90deg,transparent,var(--gold))}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;letter-spacing:.01em;margin:0;color:#f7f2e4}
.h1{font-size:clamp(38px,5.4vw,68px);line-height:1.14;letter-spacing:.005em}
.h2{font-size:clamp(28px,3.4vw,42px);line-height:1.22;margin-top:16px}
.h3{font-size:clamp(19px,1.5vw,22px);line-height:1.4}
.lead{color:var(--muted);font-size:clamp(15px,1.25vw,17px);line-height:1.9;margin:20px 0 0;max-width:62ch}
.gold{
  background:linear-gradient(100deg,#f8ecc6 0%,#e6c76a 32%,#c9a227 58%,#f3dc9a 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.section-head{max-width:760px;margin-bottom:52px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head.center .kicker::before{display:none}
.hairline{height:1px;background:linear-gradient(90deg,transparent,rgba(201,162,39,.55),transparent);margin:0}

/* ---------------- Hero ---------------- */
.hero{position:relative;padding:150px 0 96px;overflow:hidden}
.hero::before{
  content:"";position:absolute;left:50%;top:-260px;width:1000px;height:1000px;transform:translateX(-50%);
  background:radial-gradient(circle,rgba(201,162,39,.16),transparent 62%);pointer-events:none;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;padding:7px 15px 7px 9px;border-radius:99px;
  border:1px solid rgba(201,162,39,.34);background:rgba(201,162,39,.07);
  font-size:12.5px;color:#e7d9ae;letter-spacing:.04em;margin-bottom:26px;
}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 4px rgba(201,162,39,.18);animation:pulse 2.6s infinite}
@keyframes pulse{0%,100%{opacity:1;box-shadow:0 0 0 4px rgba(201,162,39,.16)}50%{opacity:.55;box-shadow:0 0 0 9px rgba(201,162,39,.03)}}
.hero .h1{max-width:16em}
.hero .lead{max-width:60ch}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:64px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.hero-stats .st{padding:26px 8px 24px;position:relative}
.hero-stats .st + .st::before{content:"";position:absolute;left:0;top:24%;bottom:24%;width:1px;background:var(--line-2)}
.hero-stats .n{font-family:var(--serif);font-size:clamp(26px,3vw,38px);color:#f7f2e4;line-height:1}
.hero-stats .n em{font-style:normal;font-size:.55em;color:var(--gold);margin-left:3px}
.hero-stats .l{font-size:12.5px;color:var(--muted-2);margin-top:9px;letter-spacing:.08em}

/* ---------------- 卡片 ---------------- */
.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{
  position:relative;padding:28px;border-radius:var(--radius);
  background:linear-gradient(158deg,rgba(255,255,255,.052),rgba(255,255,255,.012) 46%,rgba(201,162,39,.028));
  border:1px solid var(--line-2);transition:.35s cubic-bezier(.2,.7,.3,1);overflow:hidden;
}
.card::before{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;opacity:0;transition:.35s;
  background:radial-gradient(420px 180px at var(--mx,50%) 0%,rgba(201,162,39,.16),transparent 70%);
}
.card:hover{transform:translateY(-6px);border-color:rgba(201,162,39,.34);box-shadow:var(--shadow)}
.card:hover::before{opacity:1}
.card .ic{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;margin-bottom:20px;
  border:1px solid rgba(201,162,39,.3);background:rgba(201,162,39,.09);color:var(--gold-2);font-size:18px;
}
.card h3{margin-bottom:10px}
.card p{margin:0;color:var(--muted);font-size:14px;line-height:1.8}
.card .tagline{margin-top:16px;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--gold-3)}
.card h3 .chip{vertical-align:middle;margin-left:8px;letter-spacing:.04em}
.card.ai{border-color:rgba(201,162,39,.32);background:linear-gradient(158deg,rgba(201,162,39,.09),rgba(255,255,255,.014) 46%,rgba(201,162,39,.03))}
.card.ai .ic{color:var(--gold);background:rgba(201,162,39,.16);border-color:rgba(201,162,39,.45)}

/* 双技术栈 */
.stack{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:16px}
.stack-card{padding:32px;border-radius:var(--radius);border:1px solid var(--line-2);background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.012));position:relative;overflow:hidden}
.stack-card.hl{border-color:rgba(201,162,39,.42);background:linear-gradient(160deg,rgba(201,162,39,.12),rgba(201,162,39,.02))}
.stack-card .badge{position:absolute;top:22px;right:22px;font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;padding:4px 11px;border-radius:99px;border:1px solid rgba(201,162,39,.4);color:var(--gold-2);background:rgba(201,162,39,.1)}
.stack-card h3{font-size:24px;margin-bottom:6px}
.stack-card .sub{color:var(--muted);font-size:13.5px;margin-bottom:22px}
.stack-card dl{margin:0;display:grid;gap:9px}
.stack-card dl div{display:flex;gap:12px;font-size:13.5px;border-top:1px solid var(--line-2);padding-top:9px}
.stack-card dt{color:var(--muted-2);flex:0 0 84px;margin:0}
.stack-card dd{margin:0;color:#dcd6c7}

/* ---------------- 模板卡 ---------------- */
.tpl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.tpl{
  border-radius:var(--radius);overflow:hidden;border:1px solid var(--line-2);
  background:linear-gradient(170deg,rgba(255,255,255,.045),rgba(255,255,255,.01));
  transition:.35s cubic-bezier(.2,.7,.3,1);display:flex;flex-direction:column;
}
.tpl:hover{transform:translateY(-6px);border-color:rgba(201,162,39,.35);box-shadow:var(--shadow)}
.tpl .thumb{
  position:relative;aspect-ratio:16/10;overflow:hidden;border-bottom:1px solid var(--line-2);
  background:#0d0d12;
}
.tpl .thumb .bar{position:absolute;left:0;right:0;top:0;height:22px;background:rgba(0,0,0,.45);display:flex;align-items:center;gap:4px;padding:0 9px;z-index:2}
.tpl .thumb .bar i{width:5px;height:5px;border-radius:50%;background:rgba(255,255,255,.22)}
.tpl .thumb .body{position:absolute;inset:22px 0 0;display:flex;flex-direction:column;gap:7px;padding:14px 16px}
.tpl .thumb .hl{height:9px;border-radius:3px;background:linear-gradient(90deg,rgba(255,255,255,.5),rgba(255,255,255,.16));width:62%}
.tpl .thumb .ln{height:5px;border-radius:3px;background:rgba(255,255,255,.14);width:86%}
.tpl .thumb .ln.s{width:48%}
.tpl .thumb .blocks{display:flex;gap:6px;margin-top:auto}
.tpl .thumb .blocks i{flex:1;height:26px;border-radius:4px;background:rgba(255,255,255,.08)}
.tpl .meta{padding:18px 20px 20px;display:flex;flex-direction:column;gap:6px;flex:1}
.tpl .meta h3{font-size:17px}
.tpl .meta p{margin:0;font-size:12.8px;color:var(--muted-2);line-height:1.7}
.tpl .meta .row{display:flex;align-items:center;gap:8px;margin-top:10px}
.chip{font-size:11px;letter-spacing:.06em;padding:3px 9px;border-radius:99px;border:1px solid var(--line);color:#c9bd97;background:rgba(201,162,39,.06)}
.filters{display:flex;gap:10px;flex-wrap:wrap;margin:0 0 34px}
.filters button{
  padding:8px 18px;border-radius:99px;border:1px solid var(--line-2);background:transparent;
  color:var(--muted);font-size:13px;cursor:pointer;transition:.25s;
}
.filters button:hover{color:var(--gold-2);border-color:rgba(201,162,39,.4)}
.filters button.on{background:rgba(201,162,39,.14);border-color:rgba(201,162,39,.5);color:var(--gold-2)}
/* 筛选按钮里的数量角标（如「建筑与家居 19」） */
.filters button i{font-style:normal;font-size:11px;opacity:.62;margin-left:2px;font-variant-numeric:tabular-nums}
.filters button.on i{opacity:.85}
.filter-lab{font-size:11.5px;letter-spacing:.14em;color:var(--muted-2);margin:0 0 9px}

/* ---------------- 价格 ---------------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch}
.price{
  display:flex;flex-direction:column;padding:34px 30px;border-radius:20px;
  border:1px solid var(--line-2);background:linear-gradient(170deg,rgba(255,255,255,.045),rgba(255,255,255,.008));
  position:relative;transition:.35s;
}
.price:hover{transform:translateY(-4px)}
.price.hl{
  border-color:rgba(201,162,39,.5);
  background:linear-gradient(170deg,rgba(201,162,39,.14),rgba(201,162,39,.02) 55%,rgba(255,255,255,.01));
  box-shadow:0 30px 80px -40px rgba(201,162,39,.8);
}
.price .pick{position:absolute;top:-13px;left:50%;transform:translateX(-50%);font-size:10.5px;letter-spacing:.22em;padding:5px 14px;border-radius:99px;background:linear-gradient(135deg,#f8e8b2,#c9a227);color:#171308;font-weight:700;white-space:nowrap}
.price h3{font-size:20px;letter-spacing:.06em}
.price .desc{color:var(--muted-2);font-size:12.8px;margin:8px 0 22px;min-height:40px}
.price .amt{display:flex;align-items:flex-end;gap:6px;font-family:var(--serif)}
.price .amt b{font-size:44px;line-height:1;letter-spacing:-.01em;color:#f7f2e4}
.price .amt span{color:var(--muted-2);font-size:13px;padding-bottom:5px}
.price .amt small{color:var(--muted-2);font-size:12px;padding-bottom:7px}
.price ul{list-style:none;padding:22px 0 0;margin:22px 0 0;border-top:1px solid var(--line-2);display:grid;gap:11px}
.price li{display:flex;gap:10px;font-size:13.6px;color:#cfc9ba;line-height:1.6}
.price li::before{content:"◆";color:var(--gold);font-size:8px;line-height:1.9;flex:0 0 auto}
.price li.off{color:#5f5b52}
.price li.off::before{color:#33312b}
.price .btn{margin-top:26px;width:100%}
.bill-toggle{display:inline-flex;padding:5px;border-radius:99px;border:1px solid var(--line);background:rgba(255,255,255,.03);margin:0 auto 40px}
.bill-toggle button{border:0;background:transparent;color:var(--muted);padding:8px 22px;border-radius:99px;font-size:13px;cursor:pointer;transition:.25s}
.bill-toggle button.on{background:linear-gradient(135deg,#f8e8b2,#c9a227);color:#171308;font-weight:600}
.bill-toggle em{font-style:normal;font-size:11px;opacity:.75;margin-left:4px}

/* ---------------- 表格 ---------------- */
.tbl-wrap{overflow-x:auto;border:1px solid var(--line-2);border-radius:var(--radius);background:rgba(255,255,255,.022)}
table.cmp{width:100%;border-collapse:collapse;font-size:13.8px;min-width:660px}
table.cmp th,table.cmp td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--line-2)}
table.cmp thead th{background:rgba(201,162,39,.07);color:var(--gold-2);font-family:var(--serif);font-size:14.5px;letter-spacing:.05em;font-weight:600}
table.cmp td:first-child{color:#d6d0c1}
table.cmp tbody tr:last-child td{border-bottom:0}
table.cmp tbody tr:hover{background:rgba(201,162,39,.035)}
table.cmp .yes{color:var(--gold-2)}
table.cmp .no{color:#4d4a43}
table.cmp td:not(:first-child){text-align:center}
table.cmp th:not(:first-child){text-align:center}

/* ---------------- FAQ ---------------- */
.faq{display:grid;gap:0;border-top:1px solid var(--line-2)}
.faq .q{border-bottom:1px solid var(--line-2)}
.faq .q > button{
  width:100%;display:flex;align-items:flex-start;gap:16px;padding:22px 4px;background:none;border:0;
  color:#e8e2d3;font-size:15.5px;text-align:left;cursor:pointer;font-family:var(--serif);line-height:1.6;
}
.faq .q .ic{color:var(--gold);font-size:14px;flex:0 0 auto;transition:.3s;margin-top:3px}
.faq .q.on .ic{transform:rotate(45deg)}
.faq .a{max-height:0;overflow:hidden;transition:max-height .42s cubic-bezier(.2,.7,.3,1)}
.faq .a p{margin:0 0 22px;color:var(--muted);font-size:14px;line-height:1.9;padding-left:30px}

/* ---------------- 步骤 / 时间线 ---------------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:20px}
.step{position:relative;padding:0 26px 0 0}
.step .no{font-family:var(--serif);font-size:34px;color:rgba(201,162,39,.5);line-height:1;margin-bottom:16px}
.step h4{font-size:16.5px;margin-bottom:8px;letter-spacing:.03em}
.step p{margin:0;color:var(--muted-2);font-size:13.4px;line-height:1.8}
.step::after{content:"";position:absolute;left:56px;right:16px;top:17px;height:1px;background:linear-gradient(90deg,rgba(201,162,39,.45),transparent)}
.step:last-child::after{display:none}

.tl{position:relative;padding-left:34px;margin-top:10px}
.tl::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:1px;background:linear-gradient(180deg,transparent,rgba(201,162,39,.4),transparent)}
.tl .it{position:relative;padding:0 0 34px}
.tl .it::before{content:"";position:absolute;left:-31px;top:8px;width:9px;height:9px;border-radius:50%;background:var(--ink);border:1px solid var(--gold);box-shadow:0 0 0 4px rgba(201,162,39,.12)}
.tl .yr{font-family:var(--serif);color:var(--gold-2);font-size:14px;letter-spacing:.14em}
.tl h4{font-size:17px;margin:6px 0 8px}
.tl p{margin:0;color:var(--muted);font-size:13.8px;line-height:1.85}

/* ---------------- CTA ---------------- */
.cta{
  position:relative;text-align:center;padding:76px 40px;border-radius:24px;overflow:hidden;
  border:1px solid rgba(201,162,39,.3);
  background:
    radial-gradient(600px 300px at 50% -20%,rgba(201,162,39,.24),transparent 70%),
    linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.01));
}
.cta::after{
  content:"";position:absolute;left:50%;bottom:-140px;width:520px;height:280px;transform:translateX(-50%);
  background:radial-gradient(circle,rgba(201,162,39,.22),transparent 68%);pointer-events:none;
}
.cta h2{font-size:clamp(26px,3.2vw,40px)}
.cta p{color:var(--muted);margin:16px auto 0;max-width:56ch}
.cta .btn-row{justify-content:center}

/* ---------------- 页脚 ---------------- */
.foot{border-top:1px solid var(--line);padding:64px 0 34px;margin-top:20px;background:rgba(0,0,0,.28)}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:38px}
.foot .brand-tx b{font-size:17px}
.foot p.desc{color:var(--muted-2);font-size:13px;line-height:1.9;margin:18px 0 0;max-width:30ch}
.foot h5{font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--gold-3);margin:0 0 16px;font-weight:600}
.foot ul{list-style:none;margin:0;padding:0;display:grid;gap:11px}
.foot ul a{color:var(--muted);font-size:13.5px;transition:.2s}
.foot ul a:hover{color:var(--gold-2)}
.foot-bottom{display:flex;align-items:center;gap:14px;flex-wrap:wrap;border-top:1px solid var(--line-2);margin-top:46px;padding-top:22px;font-size:12.3px;color:var(--muted-2)}
.foot-bottom .sp{flex:1}
.foot-bottom a{color:var(--muted-2)}
.foot-bottom a:hover{color:var(--gold-2)}

/* ---------------- 动效 ---------------- */
/* 默认完全可见（无 JS / 爬虫 / 截图安全）；JS 就绪后才加 html.anim 启用揭示动画 */
html.anim .rv{opacity:0;transform:translateY(26px);transition:opacity .8s cubic-bezier(.2,.7,.3,1),transform .8s cubic-bezier(.2,.7,.3,1)}
html.anim .rv.in{opacity:1;transform:none}
/* 自动化/无头/减弱动效：一律终态 */
html.auto .rv{opacity:1 !important;transform:none !important;transition:none !important}
.rv.d1{transition-delay:.08s}.rv.d2{transition-delay:.16s}.rv.d3{transition-delay:.24s}.rv.d4{transition-delay:.32s}
@media (prefers-reduced-motion:reduce){html.anim .rv{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}

/* ---------------- 响应式 ---------------- */
@media(max-width:1080px){
  .g4{grid-template-columns:repeat(2,1fr)}
  .tpl-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr);row-gap:36px}
  .step:nth-child(2)::after{display:none}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:980px){
  .nav-links{display:none}
  .nav-burger{display:grid;place-items:center}
  .nav .btn-ghost{display:none}
  .price-grid{grid-template-columns:1fr;max-width:520px;margin:0 auto}
  .stack{grid-template-columns:1fr}
  .g3{grid-template-columns:repeat(2,1fr)}
  .drawer{
    display:block;position:fixed;inset:0;z-index:70;background:rgba(6,6,9,.97);backdrop-filter:blur(10px);
    padding:88px 28px 40px;transform:translateY(-100%);transition:transform .42s cubic-bezier(.2,.7,.3,1);
  }
  .drawer.on{transform:none}
  .drawer a{display:block;padding:16px 4px;font-family:var(--serif);font-size:22px;color:#e8e2d3;border-bottom:1px solid var(--line-2)}
  .drawer .btn{margin-top:26px;width:100%}
  .drawer .x{position:absolute;top:26px;right:24px;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:none;color:var(--gold-2);font-size:20px}
}
@media(max-width:720px){
  body{font-size:15px}
  .section{padding:76px 0}
  .wrap{padding:0 20px}
  .hero{padding:124px 0 64px}
  .hero-stats{grid-template-columns:repeat(2,1fr);margin-top:44px}
  .hero-stats .st{padding:20px 6px}
  .hero-stats .st:nth-child(3)::before{display:none}
  .g2,.g3,.g4,.tpl-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr;row-gap:28px}
  .step{padding-right:0}
  .step::after{display:none}
  .cta{padding:48px 22px;border-radius:18px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .card,.stack-card,.price{padding:24px}
  .btn{width:100%}
  .btn-row{flex-direction:column}
  .nav .brand-tx span{display:none}
}

/* ============================================================
   视觉特效层（滚动进度 / 光斑 / 流光按钮 / 返回顶部 / 公告条）
   ============================================================ */
.scroll-prog{
  position:fixed;left:0;top:0;height:2px;width:0;z-index:120;pointer-events:none;
  background:linear-gradient(90deg,var(--gold-3),var(--gold),var(--gold-2));
  box-shadow:0 0 12px rgba(201,162,39,.55);transition:width .08s linear;
}
.hero .orb{
  position:absolute;border-radius:50%;filter:blur(70px);pointer-events:none;z-index:0;
  animation:orbFloat 11s ease-in-out infinite;
}
.orb-0{width:420px;height:420px;left:-120px;top:-80px;background:rgba(201,162,39,.13)}
.orb-1{width:340px;height:340px;right:-90px;top:60px;background:rgba(138,106,28,.16);animation-delay:-3.5s}
.orb-2{width:280px;height:280px;left:38%;bottom:-140px;background:rgba(201,162,39,.09);animation-delay:-7s}
@keyframes orbFloat{
  0%,100%{transform:translate(0,0) scale(1)}
  33%{transform:translate(36px,-26px) scale(1.08)}
  66%{transform:translate(-28px,20px) scale(.94)}
}
.hero .wrap{position:relative;z-index:1}
.btn-gold{position:relative;overflow:hidden}
.btn-gold::after{
  content:"";position:absolute;top:0;bottom:0;left:-70%;width:44%;pointer-events:none;
  background:linear-gradient(105deg,transparent,rgba(255,255,255,.5),transparent);
  transform:skewX(-18deg);transition:left .55s ease;
}
.btn-gold:hover::after{left:130%}
.card,.stack-card,.step{
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.card:hover,.stack-card:hover,.step:hover{
  transform:translateY(-4px);
  border-color:rgba(201,162,39,.35);
  box-shadow:0 20px 50px -24px rgba(201,162,39,.35);
}
.tpl .thumb img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;
  transition:transform .5s cubic-bezier(.2,.7,.3,1);
}
.tpl:hover .thumb img{transform:scale(1.045)}
.to-top{
  position:fixed;right:26px;bottom:26px;width:44px;height:44px;border-radius:50%;
  border:1px solid rgba(201,162,39,.4);background:rgba(20,18,12,.85);color:var(--gold-2);
  font-size:19px;cursor:pointer;z-index:110;opacity:0;transform:translateY(14px);
  transition:.3s;pointer-events:none;backdrop-filter:blur(6px);
}
.to-top.on{opacity:1;transform:none;pointer-events:auto}
.to-top:hover{background:var(--gold);color:#161003}
.announce{
  position:sticky;top:0;z-index:130;text-align:center;font-size:13px;letter-spacing:.02em;
  padding:8px 18px;color:#0f0c04;font-weight:600;
  background:linear-gradient(90deg,var(--gold-3),var(--gold),var(--gold-2),var(--gold),var(--gold-3));
  background-size:200% 100%;animation:annShine 9s linear infinite;
}
@keyframes annShine{to{background-position:200% 0}}
@media (prefers-reduced-motion:reduce){
  .hero .orb,.announce{animation:none}
  .scroll-prog{transition:none}
}

/* ---------------- 模板在线预览（加载器，iframe 内渲染模板 VIEW） ---------------- */
.tpl .thumb .peek{
  position:absolute;right:10px;bottom:10px;z-index:2;
  font-size:11px;letter-spacing:.08em;color:#0d0d12;
  background:linear-gradient(120deg,#e8c96a,#c9a227);
  padding:5px 12px;border-radius:99px;opacity:0;transform:translateY(6px);transition:.3s;
}
.tpl:hover .thumb .peek{opacity:1;transform:none}
.tplv{position:fixed;inset:0;z-index:300;display:none}
.tplv.open{display:block}
.tplv-mask{position:absolute;inset:0;background:rgba(5,6,10,.78);backdrop-filter:blur(6px)}
.tplv-shell{
  position:absolute;inset:24px;display:flex;flex-direction:column;border-radius:14px;overflow:hidden;
  border:1px solid rgba(201,162,39,.25);background:#0d0d12;box-shadow:0 24px 80px rgba(0,0,0,.5);
}
.tplv-bar{display:flex;align-items:center;gap:12px;padding:10px 16px;flex-wrap:wrap;border-bottom:1px solid var(--line-2);background:linear-gradient(170deg,rgba(255,255,255,.05),rgba(255,255,255,.01))}
.tplv-bar b{font-size:14px;color:var(--text);white-space:nowrap}
.tplv-pages{display:flex;gap:6px;flex-wrap:wrap}
.tplv-pages button{
  font-size:12px;padding:5px 12px;border-radius:99px;border:1px solid var(--line-2);
  background:transparent;color:var(--muted);cursor:pointer;transition:.2s;font-family:inherit;
}
.tplv-pages button:hover{color:var(--text)}
.tplv-pages button.on{background:linear-gradient(120deg,#e8c96a,#c9a227);border-color:transparent;color:#0d0d12;font-weight:600}
.tplv-dev{display:flex;gap:6px;margin-left:auto}
.tplv-dev button{
  min-width:34px;height:30px;padding:0 8px;border-radius:8px;border:1px solid var(--line-2);
  background:transparent;color:var(--muted);cursor:pointer;font-size:13px;transition:.2s;
}
.tplv-dev button:hover{color:var(--text)}
.tplv-dev button.on{border-color:rgba(201,162,39,.5);color:#e8c96a;background:rgba(201,162,39,.08)}
.tplv-cta{
  font-size:12.5px;padding:7px 14px;border-radius:99px;text-decoration:none;white-space:nowrap;
  background:linear-gradient(120deg,#e8c96a,#c9a227);color:#0d0d12;font-weight:600;
}
.tplv-x{
  width:32px;height:32px;border-radius:8px;border:1px solid var(--line-2);
  background:transparent;color:var(--muted);font-size:16px;cursor:pointer;line-height:1;
}
.tplv-x:hover{color:var(--text);border-color:rgba(255,255,255,.2)}
.tplv-stage{flex:1;overflow:hidden;background:#eef1f5;display:flex;justify-content:center;min-height:0}
.tplv-stage iframe{width:100%;max-width:100%;height:100%;border:0;background:#fff;transition:max-width .35s cubic-bezier(.2,.7,.3,1)}
.tplv-stage[data-w="1200"] iframe{max-width:1200px;box-shadow:0 0 40px rgba(0,0,0,.18)}
.tplv-stage[data-w="768"] iframe{max-width:768px;box-shadow:0 0 40px rgba(0,0,0,.18)}
.tplv-stage[data-w="390"] iframe{max-width:390px;box-shadow:0 0 40px rgba(0,0,0,.18)}
@media (max-width:720px){
  .tplv-shell{inset:8px}
  .tplv-bar{gap:8px;padding:8px 10px}
  .tplv-cta{display:none}
}

/* ---------------- 演示站双入口（头部下拉 + 双栈卡片链接） ---------------- */
.demo-dd{position:relative;display:inline-block}
.demo-dd .demo-menu{
  position:absolute;top:calc(100% + 8px);right:0;z-index:70;min-width:212px;
  display:flex;flex-direction:column;gap:2px;padding:8px;border-radius:12px;
  background:rgba(13,13,18,.96);border:1px solid rgba(201,162,39,.28);
  box-shadow:0 18px 44px rgba(0,0,0,.5);
  opacity:0;visibility:hidden;transform:translateY(-6px);transition:.22s ease;
}
.demo-dd:hover .demo-menu,.demo-dd:focus-within .demo-menu{opacity:1;visibility:visible;transform:none}
.demo-dd .demo-menu a{
  display:flex;flex-direction:column;gap:2px;padding:9px 12px;border-radius:8px;
  text-decoration:none;transition:.18s;
}
.demo-dd .demo-menu a:hover{background:rgba(201,162,39,.1)}
.demo-dd .demo-menu a b{font-size:13px;color:var(--text);font-weight:600}
.demo-dd .demo-menu a:hover b{color:var(--gold-2)}
.demo-dd .demo-menu a i{font-style:normal;font-size:11px;color:var(--muted-2);letter-spacing:.03em}
.stack-card .demo-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:20px;padding:9px 16px;
  border-radius:99px;border:1px solid rgba(201,162,39,.4);
  font-size:12.8px;color:var(--gold-2);text-decoration:none;transition:.2s;
}
.stack-card .demo-link:hover{background:rgba(201,162,39,.12);border-color:rgba(201,162,39,.7)}
@media (max-width:720px){
  .demo-dd .demo-menu{position:fixed;top:auto;bottom:0;left:0;right:0;min-width:0;border-radius:16px 16px 0 0;transform:translateY(10px)}
  .demo-dd:hover .demo-menu,.demo-dd:focus-within .demo-menu{transform:none}
}

/* ---------------- 联系表单图形验证码 ---------------- */
.cap-row{display:flex;gap:14px;align-items:flex-end;margin-top:4px}
.cap-img{width:132px;height:44px;border-radius:10px;border:1px solid var(--line-2);cursor:pointer;flex:0 0 auto;background:#f2f5f9}
.cap-field{flex:1;display:flex;flex-direction:column;gap:6px}
.cap-field input{width:100%}