/* /assets/site.css — 新浦京棋牌 · 共享外壳与基础组件 */

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,dl,dt,dd,blockquote{margin:0;padding:0}
ul,ol{list-style:none}
img,svg{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
[hidden]{display:none !important}

:root{
  --ink:#0B2B26;
  --moss:#1F4A3A;
  --stone:#2A2F2E;
  --clay:#B96A4B;
  --gold:#D4AF37;
  --violet:#5B4BFF;
  --cream:#F3EFE6;
  --amber:#FF8A3D;
  --neon:#3FE0D0;
  --char:#111614;

  --cream-70:rgba(243,239,230,.78);
  --cream-45:rgba(243,239,230,.45);
  --cream-24:rgba(243,239,230,.24);
  --cream-12:rgba(243,239,230,.12);
  --cream-06:rgba(243,239,230,.06);
  --gold-40:rgba(212,175,55,.4);

  --rail-w:88px;
  --rail-w-open:272px;
  --shell:1180px;

  --radius-xl:34px;
  --radius-lg:22px;
  --radius-md:14px;
  --radius-pill:999px;

  --font-display:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",-apple-system,sans-serif;
  --font-num:ui-monospace,"SFMono-Regular","Roboto Mono","Menlo","Consolas",monospace;

  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow-panel:0 26px 60px -34px rgba(0,0,0,.85);
}

html{scroll-padding-top:88px}
@media (prefers-reduced-motion: no-preference){
  html{scroll-behavior:smooth}
}
html.nav-open{overflow:hidden}

body{
  min-height:100vh;
  font-family:var(--font-display);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  color:var(--cream-70);
  background-color:var(--ink);
  background-image:
    radial-gradient(1100px 720px at 10% -12%, rgba(91,75,255,.22), transparent 62%),
    radial-gradient(880px 620px at 94% 6%, rgba(63,224,208,.10), transparent 64%),
    radial-gradient(780px 560px at 68% 98%, rgba(185,106,75,.16), transparent 66%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4,strong{color:var(--cream);line-height:1.16}
h2{font-size:clamp(1.5rem,3.4vw,2.4rem);font-weight:800;letter-spacing:-.02em}
h3{font-size:clamp(1.08rem,1.9vw,1.35rem);font-weight:800;letter-spacing:-.01em}
p{max-width:76ch}

:focus-visible{outline:2px solid var(--neon);outline-offset:3px;border-radius:8px}

/* ---------- 工具类 ---------- */
.wrap{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:clamp(18px,4vw,44px)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.muted{color:var(--cream-45)}
.divider{height:1px;border:0;background:linear-gradient(90deg,var(--gold-40),rgba(63,224,208,.28),transparent)}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;font-weight:800;letter-spacing:.2em;text-transform:uppercase;color:var(--neon)}
.eyebrow::before{content:"";width:26px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--gold),var(--amber))}
.lede{font-size:clamp(15.5px,1.7vw,18px);line-height:1.85;color:var(--cream-70);max-width:64ch}

.skip-link{
  position:fixed;top:10px;left:12px;z-index:140;
  padding:12px 22px;border-radius:var(--radius-pill);
  background:linear-gradient(135deg,var(--gold),#f0cf63);color:#16302a;
  font-weight:800;font-size:14px;
  transform:translateY(-200%);
  transition:transform .26s var(--ease);
}
.skip-link:focus{transform:none}

/* ---------- 侧边轨道导航 ---------- */
.rail{
  position:fixed;inset:0 auto 0 0;z-index:80;
  width:var(--rail-w);
  display:flex;flex-direction:column;
  overflow:hidden;
  background:linear-gradient(180deg,#0d1c18 0%,var(--char) 52%,#0a1310 100%);
  border-right:1px solid rgba(212,175,55,.22);
  transition:width .38s var(--ease);
}
.rail::after{
  content:"";position:absolute;top:0;bottom:0;right:-1px;width:1px;
  background:linear-gradient(180deg,transparent,rgba(212,175,55,.6),rgba(63,224,208,.32),transparent);
  opacity:.75;pointer-events:none;
}
.rail:hover,.rail:focus-within{width:var(--rail-w-open);box-shadow:30px 0 70px -40px rgba(0,0,0,.95)}

.rail__inner{display:flex;align-items:center;gap:12px;padding:18px 20px 14px;overflow:hidden}
.rail__brand{display:flex;align-items:center;gap:14px;min-width:0}
.rail__glyph{
  flex:0 0 auto;width:48px;height:48px;border-radius:16px;
  display:grid;place-items:center;
  font-size:21px;font-weight:900;color:#16211d;
  background:linear-gradient(140deg,var(--gold),var(--clay));
  box-shadow:0 0 0 1px rgba(212,175,55,.55),0 14px 30px -16px rgba(212,175,55,.9);
}
.rail__wordmark{display:block;min-width:0;white-space:nowrap;opacity:0;transition:opacity .26s var(--ease) .06s}
.rail__name{display:block;font-size:16px;font-weight:900;letter-spacing:.01em;color:var(--cream)}
.rail__sub{display:block;font-size:11.5px;letter-spacing:.12em;color:var(--cream-45)}

.rail:hover .rail__wordmark,.rail:focus-within .rail__wordmark{opacity:1}

.rail__toggle{display:none;align-items:center;gap:10px;margin-left:auto;padding:9px 16px;border-radius:var(--radius-pill);border:1px solid var(--cream-24);color:var(--cream);font-size:13.5px;font-weight:700}
.rail__toggle-bars{position:relative;display:block;width:20px;height:14px}
.rail__toggle-bars::before,.rail__toggle-bars::after{content:"";position:absolute;left:0;width:100%;height:2px;border-radius:2px;background:var(--gold);transition:transform .28s var(--ease),top .28s var(--ease)}
.rail__toggle-bars::before{top:0}
.rail__toggle-bars::after{bottom:0}
.rail__toggle{border-color:var(--cream-24)}
.rail__toggle{background-image:linear-gradient(var(--cream),var(--cream));background-repeat:no-repeat;background-position:center;background-size:calc(100% - 46px) 2px}
.rail__toggle[aria-expanded="true"] .rail__toggle-bars::before{top:6px;transform:rotate(45deg)}
.rail__toggle[aria-expanded="true"] .rail__toggle-bars::after{bottom:6px;transform:rotate(-45deg)}

.rail__nav{
  flex:1 1 auto;min-height:0;
  display:flex;flex-direction:column;gap:14px;
  padding:6px 0 18px;
  overflow-y:auto;overflow-x:hidden;
  scrollbar-width:none;
}
.rail__nav::-webkit-scrollbar{display:none}
.rail__list{display:flex;flex-direction:column;gap:6px;padding:0 12px}
.rail__link{
  position:relative;display:flex;align-items:center;gap:14px;
  padding:12px 10px;border-radius:16px;
  color:var(--cream-70);font-size:15px;font-weight:700;white-space:nowrap;
  transition:background .26s var(--ease),color .26s var(--ease);
}
.rail__idx{flex:0 0 auto;width:24px;text-align:center;font-family:var(--font-num);font-size:12px;letter-spacing:.06em;color:rgba(212,175,55,.72);transition:color .26s var(--ease)}
.rail__label{opacity:0;transform:translateX(-6px);transition:opacity .26s var(--ease),transform .26s var(--ease)}
.rail:hover .rail__label,.rail:focus-within .rail__label{opacity:1;transform:none}
.rail__link:hover{background:rgba(212,175,55,.12);color:var(--cream)}
.rail__link[aria-current="page"]{
  background:linear-gradient(90deg,rgba(212,175,55,.22),rgba(91,75,255,.16) 70%,transparent);
  color:var(--cream);
  box-shadow:inset 0 0 0 1px rgba(212,175,55,.42);
}
.rail__link[aria-current="page"]::before{
  content:"";position:absolute;left:-8px;top:50%;transform:translateY(-50%);
  width:4px;height:26px;border-radius:0 6px 6px 0;
  background:linear-gradient(180deg,var(--gold),var(--amber));
}
.rail__link[aria-current="page"] .rail__idx{color:var(--neon)}

.rail__foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;padding:14px 16px 0}
.rail__cta{
  max-width:56px;overflow:hidden;padding:14px 16px;white-space:nowrap;justify-content:flex-start;
  transition:max-width .38s var(--ease),transform .25s var(--ease);
}
.rail__cta-glyph{flex:0 0 auto;width:24px;height:24px;border-radius:50%;display:grid;place-items:center;font-size:13px;font-weight:900;background:rgba(22,48,42,.18)}
.rail__cta-text{opacity:0;font-size:14px;transition:opacity .28s var(--ease) .08s}
.rail:hover .rail__cta,.rail:focus-within .rail__cta{max-width:220px}
.rail:hover .rail__cta-text,.rail:focus-within .rail__cta-text{opacity:1}
.rail__meta{font-size:11.5px;letter-spacing:.14em;color:var(--cream-45);white-space:nowrap;opacity:0;transition:opacity .28s var(--ease) .1s}
.rail:hover .rail__meta,.rail:focus-within .rail__meta{opacity:1}

.rail__scrim{position:fixed;inset:0;z-index:88;background:rgba(5,10,9,.72);backdrop-filter:blur(3px)}
@media (min-width:900px){
  .rail__scrim{display:none}
  body{padding-left:var(--rail-w)}
}

/* ---------- 页脚 ---------- */
.site-foot{
  position:relative;margin-top:clamp(64px,9vw,120px);
  padding:0 0 24px;
  background:linear-gradient(180deg,#0d1a17 0%,var(--char) 42%,#080c0b 100%);
  border-top:1px solid rgba(212,175,55,.26);
}
.site-foot::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(212,175,55,.9),rgba(63,224,208,.5),transparent);
}
.site-foot__grid{
  display:grid;gap:clamp(24px,3vw,40px);
  grid-template-columns:minmax(0,1.5fr) minmax(0,1fr) minmax(0,1fr) minmax(0,1.35fr);
  padding:clamp(40px,5vw,64px) 0 clamp(28px,3vw,44px);
}
.site-foot__brand{display:flex;flex-direction:column;gap:10px}
.site-foot__glyph{
  width:52px;height:52px;border-radius:17px;display:grid;place-items:center;
  font-size:22px;font-weight:900;color:#16211d;
  background:linear-gradient(140deg,var(--gold),var(--clay));
  box-shadow:0 0 0 1px rgba(212,175,55,.5);
}
.site-foot__name{font-size:18px;font-weight:900;color:var(--cream);letter-spacing:.02em}
.site-foot__tag{font-size:12px;letter-spacing:.14em;color:var(--cream-45)}
.site-foot__kicker{margin-top:6px;font-size:14px;color:var(--cream-70);max-width:30ch}
.site-foot__col{display:flex;flex-direction:column;gap:14px}
.site-foot__title{font-size:12px;font-weight:800;letter-spacing:.2em;text-transform:uppercase;color:var(--neon)}
.site-foot__list{display:flex;flex-direction:column;gap:9px}
.site-foot__list--plain{gap:12px}
.site-foot__link{
  font-size:14.5px;color:var(--cream-70);
  border-bottom:1px solid transparent;padding-bottom:2px;
  transition:color .24s var(--ease),border-color .24s var(--ease);
}
.site-foot__link:hover{color:var(--gold);border-color:var(--gold-40)}
.site-foot__row{display:flex;flex-wrap:wrap;gap:4px 12px;font-size:14px}
.site-foot__k{flex:0 0 44px;color:rgba(63,224,208,.85);font-size:12.5px;letter-spacing:.1em}
.site-foot__v{color:var(--cream-70);word-break:break-all}
.site-foot__bar{
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  padding-top:22px;border-top:1px solid var(--cream-12);
  font-size:13px;color:var(--cream-45);
}
.site-foot__legal,.site-foot__copy{max-width:none;font-size:13px;color:var(--cream-45)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 26px;border-radius:var(--radius-pill);border:1px solid transparent;
  font-size:15px;font-weight:800;line-height:1;letter-spacing:.01em;
  transition:transform .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.btn--gold{background:linear-gradient(135deg,var(--gold),#f0cf63);color:#16302a;box-shadow:0 16px 34px -22px rgba(212,175,55,.95)}
.btn--gold:hover{transform:translateY(-2px)}
.btn--ghost{background:var(--cream-06);border-color:var(--cream-24);color:var(--cream)}
.btn--ghost:hover{border-color:rgba(212,175,55,.72);color:var(--gold)}
.btn--sm{padding:10px 18px;font-size:13.5px}
.btn--block{width:100%}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 13px;border-radius:var(--radius-pill);
  font-size:12.5px;font-weight:700;letter-spacing:.03em;
  background:var(--cream-06);border:1px solid var(--cream-12);color:var(--cream-70);
}
.tag--gold{background:linear-gradient(135deg,var(--gold),#f0cf63);border-color:transparent;color:#161f1c}
.tag--neon{background:linear-gradient(135deg,var(--neon),#8ff3e8);border-color:transparent;color:#052a27}
.tag--amber{background:linear-gradient(135deg,var(--amber),#ffb37a);border-color:transparent;color:#2a1408}
.tag--violet{background:linear-gradient(135deg,var(--violet),#8a7bff);border-color:transparent;color:var(--cream)}

/* ---------- 章节与面板 ---------- */
.section{padding-block:clamp(44px,6vw,88px)}
.section__head{display:flex;flex-direction:column;gap:14px;max-width:70ch;margin-bottom:clamp(24px,3vw,42px)}
.section__title{font-size:clamp(1.5rem,3.4vw,2.4rem);font-weight:800;line-height:1.16;letter-spacing:-.02em}

.page-head{padding-block:clamp(44px,7vw,96px) clamp(18px,3vw,40px)}
.page-head__title{font-size:clamp(2rem,5.4vw,3.6rem);font-weight:900;line-height:1.05;letter-spacing:-.025em}
.page-head__lede{margin-top:18px;font-size:clamp(15.5px,1.7vw,18px);color:var(--cream-70);max-width:62ch}

.stack{display:grid;gap:clamp(18px,2.4vw,32px)}
.panel{
  position:relative;border-radius:var(--radius-xl);
  padding:clamp(22px,3.4vw,48px);
  background:linear-gradient(155deg,rgba(31,74,58,.9),rgba(11,43,38,.96));
  border:1px solid var(--cream-06);
  box-shadow:var(--shadow-panel);
}
.panel--moss{background:linear-gradient(155deg,rgba(31,74,58,.75),rgba(17,22,20,.95))}
.panel--stone{background:linear-gradient(155deg,rgba(42,47,46,.92),rgba(17,22,20,.97))}
.panel--cream{background:linear-gradient(160deg,#F7F3EA,#E4DDCE);color:rgba(34,50,44,.82);border-color:rgba(17,22,20,.08)}
.panel--cream h2,.panel--cream h3,.panel--cream strong,.panel--cream .section__title{color:#12261f}
.panel--cream p,.panel--cream .lede{color:rgba(34,50,44,.8)}
.panel--cream .eyebrow{color:#1F4A3A}

/* ---------- 网格 ---------- */
.grid{display:grid;gap:clamp(16px,2.2vw,26px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--aside{grid-template-columns:minmax(0,1.6fr) minmax(0,1fr)}
.grid--auto{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}

/* ---------- 数字锚点 ---------- */
.stat{display:flex;flex-direction:column;gap:6px}
.stat__num{font-family:var(--font-num);font-weight:800;font-size:clamp(2.2rem,5.6vw,3.8rem);line-height:1;color:var(--gold);letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.stat__unit{font-size:.44em;margin-left:6px;color:var(--neon)}
.stat__label{font-size:13.5px;letter-spacing:.06em;color:var(--cream-45)}

/* ---------- 图片容器 ---------- */
.media{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  border:1px solid var(--cream-12);
  background:
    radial-gradient(120% 90% at 18% 8%, rgba(91,75,255,.4), transparent 62%),
    radial-gradient(90% 80% at 88% 92%, rgba(255,138,61,.3), transparent 62%),
    linear-gradient(160deg,var(--moss),#0d1a17);
}
.media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(-18deg,rgba(243,239,230,.07) 0 1px,transparent 1px 9px);
}
.media--16x9{aspect-ratio:16/9}
.media--4x3{aspect-ratio:4/3}
.media--1x1{aspect-ratio:1/1}
.media--21x9{aspect-ratio:21/9}
.media__img{position:relative;z-index:1;width:100%;height:100%;object-fit:cover}
.media__cap{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:16px 18px;font-size:13px;color:var(--cream);
  background:linear-gradient(0deg,rgba(6,12,11,.9),transparent);
}

/* ---------- 卡片 / 轨道 / 技能路径 ---------- */
.card{
  border-radius:var(--radius-lg);padding:clamp(18px,2vw,26px);
  background:linear-gradient(160deg,rgba(31,74,58,.82),rgba(17,22,20,.92));
  border:1px solid var(--cream-06);
  box-shadow:var(--shadow-panel);
  display:flex;flex-direction:column;gap:12px;
  transition:transform .3s var(--ease),border-color .3s var(--ease);
}
.card--lift:hover{transform:translateY(-4px);border-color:var(--gold-40)}

.track{
  display:flex;gap:16px;
  overflow-x:auto;padding:6px 2px 18px;
  scroll-snap-type:x mandatory;
  scrollbar-width:thin;scrollbar-color:rgba(212,175,55,.5) transparent;
}
.track__item{flex:0 0 min(310px,78vw);scroll-snap-align:start}
.track::-webkit-scrollbar{height:6px}
.track::-webkit-scrollbar-track{background:var(--cream-06);border-radius:99px}
.track::-webkit-scrollbar-thumb{background:rgba(212,175,55,.45);border-radius:99px}

.path{display:grid}
.path__item{position:relative;display:grid;grid-template-columns:56px minmax(0,1fr);gap:18px;padding-bottom:26px}
.path__item::before{
  content:"";position:absolute;left:27px;top:46px;bottom:8px;width:1px;
  background:linear-gradient(180deg,rgba(212,175,55,.55),rgba(63,224,208,.1));
}
.path__item:last-child{padding-bottom:0}
.path__item:last-child::before{display:none}
.path__num{
  width:56px;height:56px;border-radius:20px;display:grid;place-items:center;
  font-family:var(--font-num);font-weight:700;font-size:15px;color:var(--neon);
  background:rgba(11,43,38,.8);border:1px solid rgba(63,224,208,.34);
}
.path__body{padding-top:6px;display:flex;flex-direction:column;gap:8px}

/* ---------- 标签页 ---------- */
.tabs{display:block}
.tabs__list{
  display:flex;flex-wrap:wrap;gap:8px;
  padding:8px;border-radius:var(--radius-pill);
  background:var(--cream-06);border:1px solid var(--cream-12);
}
.tabs__tab{
  padding:10px 20px;border-radius:var(--radius-pill);
  font-size:14.5px;font-weight:700;color:var(--cream-70);
  transition:background .25s var(--ease),color .25s var(--ease),box-shadow .25s var(--ease);
}
.tabs__tab:hover{color:var(--cream);background:rgba(212,175,55,.14)}
.tabs__tab[aria-selected="true"]{color:#16211d;background:linear-gradient(135deg,var(--gold),#f0cf63);box-shadow:0 12px 28px -18px rgba(212,175,55,.95)}
.tabs__panel{padding-top:26px}
.tabs__panel:focus-visible{outline:2px solid var(--neon);outline-offset:8px;border-radius:12px}

/* ---------- 折叠问答 ---------- */
.qa{display:grid;gap:12px}
.qa__item{border-radius:var(--radius-md);background:rgba(243,239,230,.045);border:1px solid var(--cream-12);overflow:hidden}
.qa__item[open]{border-color:rgba(212,175,55,.42);background:rgba(31,74,58,.42)}
.qa__q{display:flex;align-items:center;gap:12px;padding:16px 20px;font-weight:700;color:var(--cream);cursor:pointer;list-style:none}
.qa__q::-webkit-details-marker{display:none}
.qa__q::after{content:"＋";margin-left:auto;color:var(--gold);font-weight:800}
.qa__item[open] .qa__q::after{content:"－"}
.qa__a{padding:0 20px 18px;font-size:15px;color:var(--cream-70)}
.qa__a p{max-width:70ch}

/* ---------- 数据表 ---------- */
.datatable{width:100%;overflow-x:auto;border-radius:var(--radius-lg);border:1px solid var(--cream-12);background:rgba(11,43,38,.5)}
.datatable table{width:100%;min-width:580px;border-collapse:collapse}
.datatable th,.datatable td{padding:14px 18px;text-align:left;font-size:14.5px;border-bottom:1px solid rgba(243,239,230,.08)}
.datatable th{font-size:12.5px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:rgba(212,175,55,.92);background:rgba(17,22,20,.65)}
.datatable td:first-child{font-family:var(--font-num);color:var(--cream);white-space:nowrap}
.datatable tbody tr:hover{background:rgba(212,175,55,.06)}
.datatable tbody tr:last-child td{border-bottom:0}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:9px;margin-bottom:20px;font-size:13px;color:var(--cream-45)}
.breadcrumb a{color:var(--cream-45);border-bottom:1px solid transparent;transition:color .22s var(--ease),border-color .22s var(--ease)}
.breadcrumb a:hover{color:var(--gold);border-color:var(--gold-40)}
.breadcrumb__sep{color:rgba(212,175,55,.6)}
.breadcrumb [aria-current="page"]{color:var(--cream-70)}

/* ---------- 进度条 / 返回顶部 / 显现 ---------- */
.scroll-progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:96;background:transparent;pointer-events:none}
.scroll-progress__bar{
  height:100%;width:100%;transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--gold),var(--amber),var(--violet),var(--neon));
  transition:transform .12s linear;
}
@media (min-width:900px){.scroll-progress{left:var(--rail-w)}}

.to-top{
  position:fixed;right:18px;bottom:18px;z-index:70;
  width:48px;height:48px;border-radius:50%;
  display:grid;place-items:center;
  background:rgba(17,22,20,.9);color:var(--gold);
  border:1px solid var(--gold-40);
  font-size:16px;font-weight:900;
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .28s var(--ease),transform .28s var(--ease);
}
.to-top.is-visible{opacity:1;transform:none;pointer-events:auto}
.to-top:hover{background:rgba(212,175,55,.16)}

[data-reveal]{opacity:0;transform:translateY(20px)}
[data-reveal].is-in{opacity:1;transform:none;transition:opacity .6s var(--ease),transform .6s var(--ease)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .site-foot__grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:899px){
  html{scroll-padding-top:76px}
  body{padding-top:64px}
  .rail{
    inset:0 0 auto 0;width:auto;height:64px;
    flex-direction:row;align-items:center;
    padding:0 12px;overflow:visible;
    border-right:0;border-bottom:1px solid rgba(212,175,55,.24);
    transition:none;
  }
  .rail:hover,.rail:focus-within{width:auto;box-shadow:none}
  .rail::after{display:none}
  .rail__inner{flex:1 1 auto;padding:0;overflow:visible;gap:10px}
  .rail__glyph{width:40px;height:40px;border-radius:13px;font-size:18px}
  .rail__brand{gap:11px}
  .rail__wordmark{opacity:1;transition:none}
  .rail__name{font-size:15px}
  .rail__sub{font-size:10.5px}
  .rail__toggle{display:inline-flex}

  .rail__nav{
    position:fixed;top:0;left:0;bottom:0;z-index:90;
    width:min(86vw,340px);height:auto;
    padding:82px 16px 26px;
    background:linear-gradient(180deg,#0c1a17,#0f1512 60%,var(--char));
    border-right:1px solid rgba(212,175,55,.26);
    box-shadow:30px 0 80px -40px rgba(0,0,0,.95);
    transform:translateX(-102%);
    transition:transform .36s var(--ease);
    gap:18px;
  }
  .rail__nav[data-open]{transform:none}
  .rail__list{padding:0;gap:8px}
  .rail__link{padding:15px 16px;border-radius:16px;font-size:15.5px;background:var(--cream-06)}
  .rail__label{opacity:1;transform:none}
  .rail__foot{padding:10px 0 0}
  .rail__cta{max-width:100%;width:100%}
  .rail__cta-text{opacity:1}
  .rail__meta{opacity:1}
  .scroll-progress{top:64px}
  .to-top{right:14px;bottom:14px}
  .path__item{grid-template-columns:46px minmax(0,1fr);gap:14px}
  .path__num{width:46px;height:46px;border-radius:16px;font-size:14px}
  .path__item::before{left:22px}
}
@media (max-width:720px){
  .grid--2,.grid--3,.grid--aside,.grid--auto{grid-template-columns:minmax(0,1fr)}
  .tabs__list{border-radius:var(--radius-lg)}
}
@media (max-width:620px){
  .site-foot__grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .site-foot__bar{flex-direction:column;align-items:flex-start}
}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  html{scroll-behavior:auto !important}
  [data-reveal]{opacity:1 !important;transform:none !important}
  .rail{transition:none}
}