/* ==========================================================================
   亚洲城入口 · /assets/site.css
   共享层：reset / 变量 / 中文排版 / 头部 / 页脚 / 通用组件
   ========================================================================== */

:root{
  --ink-deep:#133B47;
  --shi-qing:#1E5A6B;
  --shi-qing-light:#3D7E8C;
  --zhe-shi:#B4652A;
  --zhe-deep:#9C5423;
  --tu-hong:#8C3B2E;
  --sha-jin:#C9A227;
  --tai-lv:#5C6B54;
  --mi-bai:#F4EFE4;
  --sha-yan:#E7DFCF;
  --yan-hui:#2A2A28;
  --gray-500:#6E6A62;

  --font-display:"Source Han Serif SC","Noto Serif SC","Songti SC","STSong","SimSun",serif;
  --font-body:"Source Han Sans SC","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --shell-max:1320px;
  --rail:304px;
  --header-h:76px;
  --radius-card:18px;
  --ease:cubic-bezier(.2,.6,.2,1);
}

/* ---------- reset ---------- */
*,*::before,*::after{ box-sizing:border-box; }
html{
  -webkit-text-size-adjust:100%;
  text-size-adjust:100%;
  scroll-behavior:smooth;
  background-color:var(--mi-bai);
}
body{
  margin:0;
  background-color:var(--mi-bai);
  background-image:radial-gradient(rgba(19,59,71,.045) 1px, transparent 1px);
  background-size:24px 24px;
  color:var(--yan-hui);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,p,figure,blockquote,dl,dd{ margin:0; }
ul,ol{ margin:0; padding:0; list-style:none; }
img,svg,video{ max-width:100%; display:block; }
button{ font:inherit; color:inherit; }
a{ color:var(--shi-qing); }
::selection{ background:var(--sha-jin); color:var(--ink-deep); }
:target{ scroll-margin-top:calc(var(--header-h) + 20px); }

:focus-visible{
  outline:3px solid var(--sha-jin);
  outline-offset:3px;
  border-radius:4px;
}

/* ---------- 排版阶梯 48 / 32 / 22 / 16 / 13 ---------- */
.h-display{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(32px,5vw,48px);
  line-height:1.18;
  letter-spacing:.02em;
  color:var(--ink-deep);
}
.h-section{
  font-family:var(--font-display);
  font-weight:500;
  font-size:clamp(20px,2.4vw,22px);
  line-height:1.45;
  letter-spacing:.02em;
  color:var(--ink-deep);
}
.h-section::after{
  content:"";
  display:block;
  width:44px;
  height:3px;
  margin-top:12px;
  border-radius:2px;
  background:var(--sha-jin);
}
.h-sub{
  font-family:var(--font-display);
  font-weight:500;
  font-size:17px;
  line-height:1.5;
  letter-spacing:.02em;
  color:var(--ink-deep);
}
.prose{ font-size:16px; line-height:1.75; color:var(--yan-hui); }
.prose p + p{ margin-top:1em; }
.prose a{ color:var(--shi-qing); text-underline-offset:3px; }
.prose a:hover{ color:var(--zhe-shi); }
.mono{
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.06em;
  color:var(--gray-500);
}
.divider{
  height:1px;
  border:0;
  background:linear-gradient(90deg, rgba(201,162,39,.7), rgba(201,162,39,0));
}

/* ---------- 容器与网格 ---------- */
.shell{
  width:100%;
  max-width:var(--shell-max);
  margin-inline:auto;
  padding-inline:clamp(16px,4vw,40px);
}
.layout-split{
  display:grid;
  grid-template-columns:minmax(0,var(--rail)) minmax(0,1fr);
  gap:clamp(24px,4vw,56px);
  align-items:start;
}
.rail{
  position:sticky;
  top:calc(var(--header-h) + 20px);
  align-self:start;
}
.section{ padding-block:clamp(48px,6.5vw,96px); }
.section--tint{ background:var(--sha-yan); }
.section--ink{ background:var(--ink-deep); color:rgba(244,239,228,.86); }
.section--ink .h-display,
.section--ink .h-section,
.section--ink .h-sub{ color:var(--mi-bai); }

/* ---------- 章节色带与编号 ---------- */
.chapter-band{
  height:8px;
  width:70%;
  border-radius:0 999px 999px 0;
  background:var(--sha-jin);
}
.chapter-band--qing{ background:var(--shi-qing); }
.chapter-band--zhe{ background:var(--zhe-shi); }
.chapter-no{
  display:inline-grid;
  place-items:center;
  min-width:44px;
  height:44px;
  padding-inline:10px;
  border-radius:14px;
  background:var(--ink-deep);
  color:var(--sha-jin);
  font-family:var(--font-mono);
  font-size:15px;
  letter-spacing:.06em;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:12px 26px;
  border:1.5px solid transparent;
  border-radius:999px;
  font-family:var(--font-body);
  font-weight:500;
  font-size:16px;
  letter-spacing:.18em;
  line-height:1.2;
  text-decoration:none;
  cursor:pointer;
  transition:background-color .22s var(--ease), color .22s var(--ease),
             border-color .22s var(--ease), transform .22s var(--ease);
}
.btn:active{ transform:translateY(1px); }
.btn--accent{ background:var(--zhe-shi); color:#FDF8EC; }
.btn--accent:hover{ background:var(--zhe-deep); color:#fff; }
.btn--solid{ background:var(--shi-qing); color:var(--mi-bai); }
.btn--solid:hover{ background:var(--ink-deep); }
.btn--ghost{
  background:transparent;
  color:var(--mi-bai);
  border-color:rgba(244,239,228,.42);
}
.btn--ghost:hover{ color:var(--sha-jin); border-color:var(--sha-jin); }

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 13px;
  border:1px solid transparent;
  border-radius:999px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  line-height:1.5;
  white-space:nowrap;
}
.tag--live{ color:var(--tai-lv); border-color:rgba(92,107,84,.42); background:rgba(92,107,84,.09); }
.tag--warn{ color:var(--tu-hong); border-color:rgba(140,59,46,.42); background:rgba(140,59,46,.08); }
.tag--index{ color:var(--gray-500); border-color:rgba(110,106,98,.34); background:rgba(231,223,207,.5); }

/* ---------- 卡片 ---------- */
.card{
  position:relative;
  padding:clamp(20px,2.6vw,30px);
  border:1px solid rgba(42,42,40,.09);
  border-radius:var(--radius-card);
  background:var(--mi-bai);
  transition:transform .24s var(--ease), box-shadow .24s var(--ease),
             border-color .24s var(--ease);
}
.card::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  height:3px;
  width:0;
  border-radius:var(--radius-card) var(--radius-card) 0 0;
  background:var(--sha-jin);
  transition:width .28s var(--ease);
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(30,90,107,.24);
  box-shadow:0 16px 34px -22px rgba(19,59,71,.55);
}
.card:hover::before{ width:100%; }
.card--lead{ border-color:rgba(201,162,39,.4); }
.card--lead::before{ width:100%; }
.card-stack > *{ margin-inline:0; }
.card-stack > *:nth-child(even){ margin-inline-start:clamp(0px,2.5vw,32px); }

/* ---------- 图版容器（页面阶段放图用） ---------- */
.figure{
  position:relative;
  margin:0;
  overflow:hidden;
  border-radius:var(--radius-card);
  background:var(--sha-yan);
}
.figure__media{
  position:relative;
  width:100%;
  aspect-ratio:16 / 9;
  background:
    linear-gradient(155deg, rgba(30,90,107,.22), rgba(201,162,39,.14) 60%, rgba(180,101,42,.12)),
    var(--sha-yan);
}
.figure__media img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.figure__cap{
  padding:12px 16px;
  background:rgba(231,223,207,.72);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.05em;
  color:var(--gray-500);
}
.figure--tall .figure__media{ aspect-ratio:3 / 4; }
.figure--wide .figure__media{ aspect-ratio:21 / 9; }

/* ---------- 面包屑 ---------- */
.crumbs{ padding-block:22px 0; }
.crumbs__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.05em;
  color:var(--gray-500);
}
.crumbs__list a{ color:var(--shi-qing); text-decoration:none; }
.crumbs__list a:hover{ text-decoration:underline; text-underline-offset:3px; }
.crumbs__list li + li::before{
  content:"/";
  margin-inline-end:8px;
  color:rgba(110,106,98,.5);
}

/* ---------- 横向胶囊栏目条 ---------- */
.chip-row{
  display:flex;
  gap:10px;
  padding:6px 2px 16px;
  overflow-x:auto;
  scrollbar-width:thin;
  -webkit-overflow-scrolling:touch;
  -webkit-mask-image:linear-gradient(90deg,#000 0,#000 calc(100% - 44px),transparent 100%);
  mask-image:linear-gradient(90deg,#000 0,#000 calc(100% - 44px),transparent 100%);
}
.chip{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 18px;
  border:1px solid rgba(30,90,107,.3);
  border-radius:999px;
  background:rgba(244,239,228,.86);
  color:var(--shi-qing);
  font-size:14px;
  letter-spacing:.1em;
  line-height:1.4;
  text-decoration:none;
  white-space:nowrap;
  transition:background-color .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}
.chip:hover{ background:var(--shi-qing); color:var(--mi-bai); border-color:var(--shi-qing); }
.chip[aria-current="page"]{ background:var(--shi-qing); color:var(--mi-bai); border-color:var(--shi-qing); }

/* ==========================================================================
   头部
   ========================================================================== */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--ink-deep);
  color:var(--mi-bai);
  border-bottom:1px solid rgba(201,162,39,.38);
  transition:background-color .24s var(--ease), border-color .24s var(--ease);
}
body.has-hero .site-header[data-scrolled="false"]{
  background:transparent;
  border-bottom-color:transparent;
}
.skip-link{
  position:absolute;
  left:clamp(12px,3vw,32px);
  top:-90px;
  z-index:200;
  padding:12px 22px;
  border-radius:0 0 12px 12px;
  background:var(--sha-jin);
  color:var(--ink-deep);
  font-weight:700;
  letter-spacing:.14em;
  text-decoration:none;
  transition:top .2s var(--ease);
}
.skip-link:focus{ top:0; }

.header-inner{
  display:flex;
  align-items:center;
  gap:clamp(14px,2.4vw,28px);
  width:100%;
  max-width:var(--shell-max);
  min-height:var(--header-h);
  margin-inline:auto;
  padding:10px clamp(16px,4vw,40px);
}

.brand{
  display:flex;
  align-items:center;
  gap:13px;
  flex:0 0 auto;
  color:var(--mi-bai);
  text-decoration:none;
}
.brand__mark{
  position:relative;
  display:grid;
  place-items:center;
  width:40px;
  height:40px;
  border:1.5px solid var(--sha-jin);
  border-radius:50%;
  flex:0 0 auto;
}
.brand__mark::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--sha-jin);
}
.brand__mark::after{
  content:"";
  position:absolute;
  inset:7px;
  border:1px solid rgba(201,162,39,.42);
  border-radius:50%;
}
.brand:hover .brand__mark{ background:rgba(201,162,39,.14); }
.brand__text{ display:flex; flex-direction:column; gap:1px; }
.brand__name{
  font-family:var(--font-display);
  font-weight:800;
  font-size:19px;
  letter-spacing:.09em;
  line-height:1.3;
  color:var(--mi-bai);
}
.brand__line{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.04em;
  line-height:1.5;
  color:rgba(244,239,228,.62);
}

.nav-toggle{
  display:none;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  width:46px;
  height:46px;
  padding:0;
  border:1.5px solid rgba(201,162,39,.5);
  border-radius:12px;
  background:transparent;
  color:var(--mi-bai);
  cursor:pointer;
  transition:border-color .2s var(--ease), background-color .2s var(--ease);
}
.nav-toggle:hover{ border-color:var(--sha-jin); background:rgba(201,162,39,.12); }
.nav-toggle__bar{
  display:block;
  width:20px;
  height:1.5px;
  border-radius:1px;
  background:currentColor;
  transition:transform .24s var(--ease), opacity .24s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1){ transform:translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2){ opacity:0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3){ transform:translateY(-6.5px) rotate(-45deg); }

.nav{ margin-inline-start:auto; }
.nav__list{ display:flex; align-items:center; gap:4px; }
.nav__link{
  display:inline-flex;
  align-items:center;
  padding:9px 14px;
  border-radius:999px;
  color:rgba(244,239,228,.82);
  font-size:15px;
  letter-spacing:.18em;
  line-height:1.4;
  text-decoration:none;
  transition:color .2s var(--ease), background-color .2s var(--ease);
}
.nav__link:hover{ color:#fff; background:rgba(201,162,39,.16); }
.nav__link[aria-current="page"]{
  background:var(--sha-jin);
  color:var(--ink-deep);
  font-weight:500;
}

.header__cta{ flex:0 0 auto; padding:11px 22px; font-size:15px; }

.scroll-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  pointer-events:none;
}
.scroll-progress__bar{
  display:block;
  width:0;
  height:100%;
  background:var(--sha-jin);
}

/* ==========================================================================
   页脚
   ========================================================================== */
.site-footer{
  margin-top:clamp(64px,8vw,120px);
  padding-top:clamp(46px,6vw,72px);
  border-top:3px solid var(--sha-jin);
  background:var(--ink-deep);
  color:rgba(244,239,228,.78);
}
.footer-inner{
  display:grid;
  grid-template-columns:minmax(0,1.35fr) repeat(3,minmax(0,1fr));
  gap:clamp(28px,4vw,56px);
  width:100%;
  max-width:var(--shell-max);
  margin-inline:auto;
  padding:0 clamp(16px,4vw,40px) clamp(32px,5vw,56px);
}
.footer-brand__name{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(20px,2.2vw,26px);
  letter-spacing:.07em;
  line-height:1.35;
  color:var(--mi-bai);
}
.footer-brand__line{
  margin-top:12px;
  max-width:34ch;
  font-size:14.5px;
  line-height:1.8;
  color:rgba(244,239,228,.66);
}
.footer-brand__meta{
  margin-top:16px;
  color:rgba(201,162,39,.82);
}
.footer-col__title{
  margin-bottom:16px;
  font-family:var(--font-mono);
  font-weight:400;
  font-size:12px;
  letter-spacing:.2em;
  color:var(--sha-jin);
}
.footer-list{ display:grid; gap:10px; font-size:15px; }
.footer-list a{
  display:inline-block;
  color:rgba(244,239,228,.78);
  letter-spacing:.05em;
  text-decoration:none;
  transition:color .2s var(--ease), padding-inline-start .2s var(--ease);
}
.footer-list a:hover{ color:var(--sha-jin); padding-inline-start:6px; }
.footer-list--plain{ font-size:14.5px; line-height:1.75; color:rgba(244,239,228,.72); }
.footer-list--plain .mono{ color:rgba(244,239,228,.46); margin-inline-end:6px; }
.footer-mail{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.02em;
  color:var(--mi-bai);
  word-break:break-all;
}
.copy-btn{
  margin-inline-start:8px;
  padding:3px 11px;
  border:1px solid rgba(201,162,39,.55);
  border-radius:999px;
  background:transparent;
  color:var(--sha-jin);
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.1em;
  cursor:pointer;
  transition:background-color .2s var(--ease), color .2s var(--ease);
}
.copy-btn:hover{ background:var(--sha-jin); color:var(--ink-deep); }
.copy-btn:disabled{ opacity:.7; cursor:default; }

.footer-legal{
  border-top:1px solid rgba(201,162,39,.28);
  background:rgba(10,34,41,.55);
}
.footer-legal__inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px clamp(16px,3vw,40px);
  width:100%;
  max-width:var(--shell-max);
  margin-inline:auto;
  padding:20px clamp(16px,4vw,40px);
  font-size:13px;
  letter-spacing:.04em;
  color:rgba(244,239,228,.6);
}
.footer-legal__icp{
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.06em;
  color:rgba(244,239,228,.8);
}
.footer-legal__note{ flex:1 1 260px; min-width:0; line-height:1.7; }
.footer-legal__year{
  font-family:var(--font-mono);
  font-size:12.5px;
  color:rgba(244,239,228,.55);
}

/* ---------- 显现 ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .5s var(--ease), transform .5s var(--ease);
}
[data-reveal][data-revealed="true"]{
  opacity:1;
  transform:none;
}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width:1100px){
  .nav__link{ padding:9px 11px; letter-spacing:.1em; font-size:14.5px; }
  .brand__line{ display:none; }
}

@media (max-width:960px){
  .layout-split{ grid-template-columns:minmax(0,1fr); }
  .rail{ position:static; top:auto; }
  .footer-inner{ grid-template-columns:repeat(2,minmax(0,1fr)); }
}

@media (max-width:900px){
  :root{ --header-h:64px; }
  .nav-toggle{ display:flex; margin-inline-start:auto; }
  .header__cta{ display:none; }
  .nav{
    position:absolute;
    inset:100% 0 auto 0;
    margin:0;
    z-index:1;
    max-height:0;
    overflow:hidden;
    background:var(--ink-deep);
    border-bottom:1px solid rgba(201,162,39,.3);
    box-shadow:0 24px 44px -30px rgba(0,0,0,.8);
    transition:max-height .3s var(--ease);
  }
  .nav[data-open="true"]{ max-height:560px; }
  .nav__list{ flex-direction:column; align-items:stretch; gap:2px; padding:14px clamp(16px,4vw,40px) 22px; }
  .nav__link{
    padding:14px 14px;
    border-radius:12px;
    font-size:16px;
    letter-spacing:.16em;
  }
  .brand__name{ font-size:18px; }
}

@media (max-width:560px){
  .footer-inner{ grid-template-columns:minmax(0,1fr); }
  .brand__mark{ width:34px; height:34px; }
  .brand__mark::after{ inset:6px; }
  .footer-legal__inner{ padding-block:18px; }
}

/* ---------- 动效降级 ---------- */
@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; transform:none; }
  .card:hover{ transform:none; }
  .card:hover::before{ width:100%; }
  .footer-list a:hover{ padding-inline-start:0; }
}