/* ===========================================================
   AG主站 · 共享样式  /assets/site.css
   深湖墨底 · 青蓝识别 · 湖绿过渡 · 脉冲橙点睛
   =========================================================== */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,figure{display:block;max-width:100%}
button,input{font:inherit;color:inherit}
button{background:none;border:0}
a{color:inherit}
[hidden]{display:none!important}

/* ---------- 2. 变量 ---------- */
:root{
  --ink:#061A24;
  --blue:#14708F;
  --blue-deep:#0A4B60;
  --lake:#2E9E86;
  --pulse:#FF6B35;
  --silver:#C3CDD6;
  --mist:#F2F7FA;
  --quiet:#93A7B3;
  --glass:rgba(255,255,255,.06);
  --solid:#0E2C38;
  --line:rgba(195,205,214,.18);
  --line-soft:rgba(195,205,214,.10);

  --header-h:64px;
  --rail-w:88px;
  --maxw:1260px;

  --font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"DejaVu Sans Mono","Courier New",monospace;

  --fs-cover:clamp(2.75rem,6.2vw,5.5rem);
  --fs-sect:clamp(1.75rem,3.4vw,2.75rem);
  --fs-sub:clamp(1.25rem,2vw,1.625rem);
  --fs-body:1.0625rem;
  --fs-note:.875rem;

  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 3. 基础与背景 ---------- */
body{
  position:relative;
  z-index:0;
  min-height:100vh;
  padding-top:var(--header-h);
  background-color:var(--ink);
  background-image:
    radial-gradient(1100px 560px at 84% -8%, rgba(20,112,143,.30), transparent 62%),
    radial-gradient(900px 520px at 6% 34%, rgba(46,158,134,.14), transparent 66%),
    linear-gradient(180deg,#061A24 0%,#08222E 46%,#061A24 100%);
  background-attachment:fixed;
  color:var(--mist);
  font-family:var(--font-sans);
  font-size:var(--fs-body);
  line-height:1.75;
  letter-spacing:0;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(195,205,214,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(195,205,214,.05) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.25) 70%,transparent);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.25) 70%,transparent);
}
@media (min-width:1200px){
  body{padding-left:var(--rail-w)}
}

::selection{background:rgba(46,158,134,.4);color:var(--mist)}

:focus-visible{outline:2px solid var(--lake);outline-offset:2px;border-radius:4px}

/* ---------- 4. 排版工具 ---------- */
.vh{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.06em}
.t-cover{font-size:var(--fs-cover);font-weight:800;line-height:1.02;letter-spacing:-.02em}
.t-sect{font-size:var(--fs-sect);font-weight:800;line-height:1.14;letter-spacing:-.02em}
.t-sub{font-size:var(--fs-sub);font-weight:700;line-height:1.35;letter-spacing:-.01em}
.lead{font-size:var(--fs-body);color:var(--silver);max-width:72ch}
.note{font-size:var(--fs-note);color:var(--quiet);line-height:1.7}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:.8125rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--lake);
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--pulse);box-shadow:0 0 0 3px rgba(255,107,53,.16)}

/* ---------- 5. Skip link ---------- */
.skip-link{
  position:fixed;left:-9999px;top:0;z-index:120;
  padding:11px 18px;
  background:var(--pulse);color:#06121A;
  font-size:var(--fs-note);font-weight:700;text-decoration:none;
  border-radius:0 0 8px 0;
}
.skip-link:focus{left:0}

/* ---------- 6. 顶部命令栏 ---------- */
.cmdbar{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(6,26,36,.82);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:background .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.cmdbar[data-scrolled]{
  background:rgba(5,20,28,.94);
  border-bottom-color:rgba(46,158,134,.42);
  box-shadow:0 10px 28px rgba(0,0,0,.42);
}
.cmdbar__inner{
  display:flex;align-items:center;gap:clamp(10px,1.6vw,24px);
  height:var(--header-h);
  max-width:1680px;margin-inline:auto;
  padding-inline:clamp(14px,2.6vw,30px);
}
.cmdbar__progress{
  position:absolute;left:0;bottom:-1px;width:100%;height:2px;
  transform:scaleX(0);transform-origin:left center;
  background:linear-gradient(90deg,var(--blue),var(--lake) 62%,var(--pulse));
  transition:transform .12s linear;
}

/* 品牌 */
.brand{
  display:flex;align-items:center;gap:10px;
  text-decoration:none;flex:0 0 auto;
}
.brand__mark{
  display:grid;place-items:center;
  width:38px;height:38px;border-radius:7px;
  font-family:var(--font-mono);font-size:.9375rem;font-weight:700;letter-spacing:.04em;
  color:var(--mist);
  background:linear-gradient(150deg,var(--blue),var(--blue-deep) 55%,var(--lake));
  border:1px solid rgba(195,205,214,.32);
}
.brand__text{display:flex;flex-direction:column;line-height:1.2}
.brand__name{font-size:.9375rem;font-weight:700;letter-spacing:.02em}
.brand__tag{
  font-family:var(--font-mono);font-size:.75rem;letter-spacing:.12em;
  color:var(--quiet);transition:opacity .2s var(--ease)
}
.cmdbar[data-scrolled] .brand__tag{opacity:0}

/* 主导航 */
.nav__list{display:flex;align-items:center;gap:2px}
.nav__list a{
  position:relative;
  display:inline-flex;align-items:baseline;gap:6px;
  padding:9px 12px;border-radius:7px;
  border:1px solid transparent;
  font-size:var(--fs-note);color:var(--silver);text-decoration:none;
  white-space:nowrap;
  transition:color .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease);
}
.nav__list a:hover{color:var(--mist);background:var(--glass);border-color:var(--line)}
.nav__list a[aria-current="page"]{
  color:var(--mist);
  background:linear-gradient(180deg,rgba(20,112,143,.40),rgba(20,112,143,.14));
  border-color:rgba(46,158,134,.55);
}
.nav__list a[aria-current="page"]::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;
  border-radius:2px;background:var(--pulse);
}
.nav__idx{
  font-family:var(--font-mono);font-size:.75rem;letter-spacing:.06em;
  color:var(--quiet);line-height:1;
}
.nav__list a[aria-current="page"] .nav__idx{color:var(--lake)}

/* 检索区 */
.searchline{
  position:relative;
  display:flex;align-items:center;gap:8px;
  margin-left:auto;flex:0 0 auto;
}
.searchline__input{
  width:clamp(108px,13vw,190px);height:34px;
  padding:0 12px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(195,205,214,.28);
  border-radius:7px;
  color:var(--mist);
  font-family:var(--font-mono);font-size:.8125rem;letter-spacing:.04em;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.searchline__input::placeholder{color:var(--quiet)}
.searchline__input:focus-visible{outline:none;border-color:var(--lake);box-shadow:0 0 0 3px rgba(46,158,134,.28)}
.searchline__state{
  position:absolute;top:calc(100% + 8px);right:0;
  padding:3px 10px;border-radius:999px;
  background:rgba(14,44,56,.94);border:1px solid var(--line);
  font-family:var(--font-mono);font-size:.6875rem;letter-spacing:.08em;
  color:var(--lake);white-space:nowrap;
  opacity:0;transform:translateY(-3px);pointer-events:none;
  transition:opacity .2s var(--ease),transform .2s var(--ease);
}
.searchline:focus-within .searchline__state,
.searchline__input:not(:placeholder-shown) ~ .searchline__state{opacity:1;transform:translateY(0)}

/* 移动端开关 */
.navtoggle{
  display:none;align-items:center;gap:8px;
  padding:9px 12px;border-radius:7px;
  border:1px solid var(--line);background:var(--glass);
  color:var(--mist);font-size:var(--fs-note);cursor:pointer;
}
.navtoggle__bars{position:relative;display:block;width:16px;height:2px;background:var(--lake);border-radius:2px}
.navtoggle__bars::before,.navtoggle__bars::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:var(--lake);border-radius:2px;
}
.navtoggle__bars::before{top:-5px}
.navtoggle__bars::after{top:5px}
.navtoggle[aria-expanded="true"]{border-color:var(--pulse);background:rgba(255,107,53,.14)}

.navscrim{position:fixed;inset:0;z-index:65;background:rgba(4,16,22,.66);-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}

/* ---------- 7. 左侧品牌轨道 ---------- */
.rail{display:none}

@media (min-width:1200px){
  .rail{
    display:flex;flex-direction:column;align-items:center;gap:12px;
    position:fixed;left:0;top:var(--header-h);bottom:0;width:var(--rail-w);
    padding:20px 0 22px;z-index:55;
    background:linear-gradient(180deg,rgba(10,75,96,.60),rgba(6,26,36,.88));
    border-right:1px solid var(--line);
  }
}
.rail__brand{
  writing-mode:vertical-rl;
  font-family:var(--font-mono);font-size:.75rem;letter-spacing:.34em;
  color:var(--quiet);text-transform:uppercase;
}
.rail__index{
  display:flex;flex-direction:column;align-items:center;gap:4px;
  width:100%;flex:1 1 auto;overflow-y:auto;padding:6px 0;
  scrollbar-width:none;
}
.rail__index::-webkit-scrollbar{display:none}
.rail__index:empty{display:none}
.rail__item{
  position:relative;
  display:grid;place-items:center;
  width:36px;height:26px;border-radius:7px;
  border:1px solid transparent;text-decoration:none;
  transition:background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.rail__num{font-family:var(--font-mono);font-size:.75rem;letter-spacing:.06em;color:var(--quiet)}
.rail__item:hover{background:var(--glass);border-color:var(--line)}
.rail__item:hover .rail__num{color:var(--mist)}
.rail__item.is-current{
  background:rgba(20,112,143,.44);
  border-color:rgba(46,158,134,.62);
}
.rail__item.is-current .rail__num{color:var(--mist)}
.rail__item.is-current::before{
  content:"";position:absolute;left:-10px;top:50%;margin-top:-3px;
  width:6px;height:6px;border-radius:50%;
  background:var(--pulse);box-shadow:0 0 0 3px rgba(255,107,53,.18);
}
.rail__label{
  position:absolute;left:calc(100% + 12px);top:50%;
  transform:translateY(-50%) translateX(-4px);
  padding:6px 10px;border-radius:7px;white-space:nowrap;
  background:var(--solid);border:1px solid rgba(195,205,214,.24);
  font-family:var(--font-sans);font-size:.8125rem;letter-spacing:0;color:var(--mist);
  opacity:0;pointer-events:none;
  transition:opacity .18s var(--ease),transform .18s var(--ease);
}
.rail__item:hover .rail__label,
.rail__item:focus-visible .rail__label{opacity:1;transform:translateY(-50%) translateX(0)}
.rail__meter{
  display:flex;align-items:baseline;gap:1px;
  font-family:var(--font-mono);font-size:.875rem;letter-spacing:.06em;color:var(--mist);
}
.rail__unit{font-size:.75rem;color:var(--quiet)}
.rail__track{
  display:block;position:relative;width:2px;height:96px;border-radius:2px;
  background:rgba(195,205,214,.22);overflow:hidden;
}
.rail__fill{
  position:absolute;inset:0;display:block;
  transform:scaleY(0);transform-origin:top center;
  background:linear-gradient(180deg,var(--lake),var(--pulse));
}
.rail__top{
  margin-top:auto;
  padding:14px 7px;border-radius:7px;cursor:pointer;
  writing-mode:vertical-rl;
  font-family:var(--font-mono);font-size:.75rem;letter-spacing:.2em;
  color:var(--silver);
  background:var(--glass);border:1px solid rgba(195,205,214,.28);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.rail__top:hover{color:var(--mist);border-color:var(--lake);background:rgba(46,158,134,.18)}

@media (max-width:1199.98px){
  .rail{
    display:block;position:fixed;
    right:16px;bottom:18px;left:auto;top:auto;
    width:auto;z-index:58;padding:0;border:0;background:none;
  }
  .rail__brand,.rail__index,.rail__meter,.rail__track{display:none}
  .rail__top{
    writing-mode:horizontal-tb;
    padding:11px 16px;border-radius:999px;
    background:rgba(10,75,96,.92);
    border-color:rgba(195,205,214,.32);
    -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
    box-shadow:0 10px 24px rgba(0,0,0,.42);
    letter-spacing:.14em;
  }
}

/* ---------- 8. 页脚 ---------- */
.foot{
  position:relative;
  margin-top:clamp(56px,8vw,120px);
  padding-top:clamp(46px,6vw,88px);
  background:linear-gradient(180deg,#0A4B60 0%,#07222C 48%,#061A24 100%);
  border-top:1px solid rgba(195,205,214,.24);
}
.foot__inner{
  width:100%;max-width:var(--maxw);margin-inline:auto;
  padding-inline:clamp(20px,4vw,56px);
}
.foot__grid{
  display:grid;
  grid-template-columns:1.2fr 1.1fr .85fr 1.2fr;
  gap:clamp(22px,3vw,46px);
}
.foot__col{min-width:0}
.foot__mark{
  font-family:var(--font-mono);font-size:1.375rem;font-weight:700;
  letter-spacing:.1em;color:var(--mist);
}
.foot__mark span{
  margin-left:6px;font-family:var(--font-sans);font-size:.875rem;
  font-weight:400;letter-spacing:.04em;color:var(--lake);
}
.foot__line{
  margin-top:10px;
  font-family:var(--font-mono);font-size:.8125rem;letter-spacing:.06em;color:var(--silver);
}
.foot__title{
  margin-bottom:14px;
  font-family:var(--font-mono);font-size:.8125rem;font-weight:600;
  letter-spacing:.16em;text-transform:uppercase;color:var(--lake);
}
.foot__desc{font-size:var(--fs-note);color:var(--silver);line-height:1.7;max-width:34ch}
.foot__col--ticket .btn{margin-top:16px}
.foot__links{display:flex;flex-direction:column;gap:9px}
.foot__links a,.foot__links span{
  font-size:var(--fs-note);color:var(--silver);text-decoration:none;
  transition:color .18s var(--ease)
}
.foot__links a:hover{color:var(--mist)}
.foot__links a:hover::after{content:" →";color:var(--pulse)}
.foot__links--mono a,.foot__links--mono span{
  font-family:var(--font-mono);font-size:.8125rem;letter-spacing:.04em;
  word-break:break-word;line-height:1.6;
}
.foot__legal{
  display:flex;flex-wrap:wrap;gap:8px 16px;
  margin-top:18px;padding-top:14px;
  border-top:1px dashed rgba(195,205,214,.24);
}
.foot__legal a{font-size:var(--fs-note);color:var(--quiet);text-decoration:none}
.foot__legal a:hover{color:var(--lake);text-decoration:underline;text-underline-offset:4px}
.foot__base{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 20px;
  margin-top:clamp(28px,4vw,54px);
  padding:18px 0 22px;
  border-top:1px solid var(--line-soft);
  font-family:var(--font-mono);font-size:.75rem;letter-spacing:.06em;color:var(--quiet);
}
.foot__base-mono{color:rgba(147,167,179,.6)}

@media (max-width:1080px){
  .foot__grid{grid-template-columns:1fr 1fr}
}
@media (max-width:620px){
  .foot__grid{grid-template-columns:1fr}
  .foot__base{flex-direction:column}
}

/* ---------- 9. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:8px;
  border:1px solid transparent;
  font-size:var(--fs-note);font-weight:700;letter-spacing:.02em;
  text-decoration:none;cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn--sm{padding:8px 14px;font-size:.8125rem;border-radius:7px}
.btn--pulse{background:var(--pulse);color:#08161C;box-shadow:0 8px 20px rgba(255,107,53,.24)}
.btn--pulse:hover{background:#FF8355;transform:translateY(-1px)}
.btn--blue{background:linear-gradient(120deg,var(--blue),var(--blue-deep));color:var(--mist);border-color:rgba(46,158,134,.4)}
.btn--blue:hover{background:linear-gradient(120deg,#17809F,var(--blue));transform:translateY(-1px)}
.btn--ghost{background:var(--glass);border-color:rgba(195,205,214,.34);color:var(--mist)}
.btn--ghost:hover{border-color:var(--lake);background:rgba(46,158,134,.16)}

/* ---------- 10. 布局骨架 ---------- */
.wrap{
  width:100%;max-width:var(--maxw);margin-inline:auto;
  padding-inline:clamp(20px,4vw,56px);
}
.stack{display:flex;flex-direction:column;gap:clamp(16px,2.4vw,30px)}
.grid12{display:grid;grid-template-columns:repeat(12,1fr);gap:clamp(16px,2vw,28px)}
.col-3{grid-column:span 3}
.col-4{grid-column:span 4}
.col-5{grid-column:span 5}
.col-6{grid-column:span 6}
.col-7{grid-column:span 7}
.col-8{grid-column:span 8}
.col-9{grid-column:span 9}
.col-10{grid-column:span 10}
.col-11{grid-column:span 11}
.col-12{grid-column:span 12}
.offset-1{grid-column-start:2}
.offset-2{grid-column-start:3}
.rule{height:1px;border:0;background:linear-gradient(90deg,rgba(46,158,134,.6),rgba(20,112,143,.25) 40%,transparent)}
.sect{padding-block:clamp(38px,6vw,86px)}
.sect__head{
  display:grid;grid-template-columns:auto 1fr;gap:14px 22px;
  align-items:start;margin-bottom:clamp(20px,3vw,38px);
}
.sect__idx{
  font-family:var(--font-mono);font-size:.875rem;letter-spacing:.1em;
  color:var(--lake);padding-top:.4em;
}
.sect__title{font-size:var(--fs-sect);font-weight:800;line-height:1.14;letter-spacing:-.02em}
.sect__sum{grid-column:2;font-size:var(--fs-body);color:var(--silver);max-width:68ch}
[data-section]{scroll-margin-top:calc(var(--header-h) + 20px)}

@media (max-width:900px){
  .grid12{grid-template-columns:1fr}
  .col-3,.col-4,.col-5,.col-6,.col-7,.col-8,.col-9,.col-10,.col-11,.col-12{grid-column:1 / -1}
  .offset-1,.offset-2{grid-column-start:1}
  .sect__head{grid-template-columns:1fr}
  .sect__sum{grid-column:1}
}

/* ---------- 11. 材质与信息组件 ---------- */
.glass{
  background:var(--glass);
  border:1px solid rgba(195,205,214,.24);
  border-radius:12px;
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  padding:clamp(18px,2.4vw,28px);
}
.panel{
  background:var(--solid);
  border:1px solid var(--line);
  border-radius:12px;
  padding:clamp(18px,2.4vw,30px);
}
.panel--deep{background:linear-gradient(180deg,var(--blue-deep),#0B2430)}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;
  border:1px solid rgba(195,205,214,.28);background:var(--glass);
  font-family:var(--font-mono);font-size:.75rem;letter-spacing:.06em;color:var(--silver);
}
.tag--ok{border-color:rgba(46,158,134,.6);color:var(--lake)}
.tag--hot{border-color:rgba(255,107,53,.6);color:var(--pulse)}
.dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--lake)}
.dot--pulse{background:var(--pulse);box-shadow:0 0 0 3px rgba(255,107,53,.18)}
.dot--idle{background:var(--quiet)}
.stat{display:flex;flex-direction:column;gap:4px}
.stat__num{font-family:var(--font-mono);font-size:clamp(1.75rem,3vw,2.5rem);letter-spacing:.02em;color:var(--mist)}
.stat__num em{font-style:normal;font-size:.5em;color:var(--lake);margin-left:4px}
.stat__label{font-size:var(--fs-note);color:var(--quiet)}
.kv{display:grid;grid-template-columns:minmax(84px,auto) 1fr;gap:8px 18px;font-size:var(--fs-note)}
.kv dt{font-family:var(--font-mono);letter-spacing:.06em;color:var(--quiet)}
.kv dd{margin:0;color:var(--silver)}
.list-index{display:flex;flex-direction:column}
.list-index li{
  display:grid;grid-template-columns:auto 1fr auto;gap:10px 16px;align-items:baseline;
  padding:14px 4px;border-bottom:1px solid var(--line-soft);
}
.list-index li:first-child{border-top:1px solid var(--line-soft)}
.list-index__idx{font-family:var(--font-mono);font-size:.75rem;letter-spacing:.08em;color:var(--lake)}
.list-index__title{font-size:var(--fs-body);color:var(--mist)}
.list-index__meta{font-family:var(--font-mono);font-size:.75rem;color:var(--quiet)}
.data-table{width:100%;border-collapse:collapse;font-family:var(--font-mono);font-size:.8125rem;letter-spacing:.02em}
.data-table caption{caption-side:top;text-align:left;padding-bottom:10px;font-family:var(--font-sans);font-size:var(--fs-note);color:var(--quiet)}
.data-table th,.data-table td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line-soft)}
.data-table thead th{background:var(--blue-deep);color:var(--mist);font-weight:600;letter-spacing:.08em;border-bottom-color:rgba(46,158,134,.5)}
.data-table tbody td{color:var(--silver)}
.data-table tbody tr:hover td{background:rgba(20,112,143,.14);color:var(--mist)}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding-top:22px;
  font-family:var(--font-mono);font-size:.75rem;letter-spacing:.06em;color:var(--quiet);
}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:rgba(147,167,179,.55)}
.breadcrumb a{color:var(--silver);text-decoration:none}
.breadcrumb a:hover{color:var(--lake)}

/* ---------- 12. 图片容器（页面阶段放图） ---------- */
.media-frame{
  position:relative;overflow:hidden;
  border-radius:14px;
  border:1px solid rgba(195,205,214,.22);
  background:linear-gradient(142deg,rgba(20,112,143,.42),rgba(46,158,134,.20) 52%,rgba(6,26,36,.92));
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame figcaption{
  position:absolute;left:0;bottom:0;right:0;
  padding:14px 16px;
  background:linear-gradient(180deg,transparent,rgba(6,26,36,.9));
  font-family:var(--font-mono);font-size:.75rem;letter-spacing:.06em;color:var(--silver);
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--banner{aspect-ratio:16/7}
.media-frame--square{aspect-ratio:1/1}
.media-frame--tall{aspect-ratio:4/5}
@media (max-width:700px){
  .media-frame--wide{aspect-ratio:16/10}
  .media-frame--banner{aspect-ratio:4/3}
}

/* ---------- 13. 显现与动效 ---------- */
[data-reveal]{
  opacity:0;transform:translateY(12px);
  transition:opacity .32s var(--ease),transform .32s var(--ease);
}
[data-reveal].is-in{opacity:1;transform:none}
[data-reveal][data-delay="2"]{transition-delay:.08s}
[data-reveal][data-delay="3"]{transition-delay:.16s}

/* ---------- 14. 移动端导航形态 ---------- */
@media (max-width:1080px){
  .navtoggle{display:inline-flex}
  .nav{
    position:fixed;top:0;right:0;z-index:70;
    width:min(330px,86vw);height:100vh;
    padding:82px 20px 32px;
    overflow-y:auto;
    background:linear-gradient(180deg,#08222E,#061A24);
    border-left:1px solid rgba(195,205,214,.24);
    box-shadow:-18px 0 44px rgba(0,0,0,.5);
    transform:translateX(103%);
    transition:transform .3s var(--ease);
  }
  .nav[data-open]{transform:translateX(0)}
  .nav__list{flex-direction:column;align-items:stretch;gap:2px}
  .nav__list a{
    padding:14px 12px;border-radius:8px;
    border-bottom:1px solid var(--line-soft);
    font-size:var(--fs-body);
  }
  .nav__list a[aria-current="page"]::after{left:12px;right:auto;width:26px;bottom:6px}
  .nav__idx{font-size:.8125rem}
}
@media (max-width:900px){
  .searchline__input{width:clamp(92px,26vw,150px)}
}
@media (max-width:620px){
  .searchline{display:none}
}
@media (min-width:1081px){
  .navtoggle{display:none}
  .navscrim{display:none}
}

/* ---------- 15. 减弱动效 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  [data-reveal]{opacity:1!important;transform:none!important}
}