/* ==========================================================
   易游数据 · 共享样式表 /assets/site.css
   母题：城市连线 · 细线穿节点 · 数据图层
   ========================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root{
  --ocean:#0B6FB8;
  --ocean-600:#095d9c;
  --deep:#063A63;
  --deep-900:#04253f;
  --coral:#FF6B4A;
  --coral-soft:#FFD9CE;
  --palm:#2FA36B;
  --pearl:#FBF7F2;
  --mist:#E4EDF4;
  --ink:#101820;
  --ink-soft:#41556a;
  --marker:#FFE066;

  --line:rgba(6,58,99,.14);
  --line-strong:rgba(6,58,99,.28);
  --line-light:rgba(255,255,255,.16);

  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei UI","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-display:"PingFang SC","Hiragino Sans GB","Microsoft YaHei UI","Source Han Sans SC","Noto Sans CJK SC",system-ui,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono","Noto Sans Mono CJK SC",monospace;

  --wrap:1320px;
  --gutter:clamp(16px,3vw,40px);

  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;

  --sh-1:0 1px 0 rgba(6,58,99,.05),0 10px 26px -20px rgba(6,58,99,.55);
  --sh-2:0 26px 58px -34px rgba(6,58,99,.55);

  --bar-h:66px;
  --ease:cubic-bezier(.2,.7,.3,1);
}

/* ---------- 2. 重置 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.85;
  color:var(--ink);
  background-color:var(--pearl);
  background-image:linear-gradient(180deg,rgba(228,237,244,.85),rgba(251,247,242,0) 460px);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
}
img,svg,picture,video{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,p,figure,blockquote{margin:0}
table{border-collapse:collapse;width:100%}
[hidden]{display:none !important}
#main-content{scroll-margin-top:calc(var(--bar-h) + 14px)}

:focus-visible{outline:3px solid var(--coral);outline-offset:3px;border-radius:4px}
.cmdbar :focus-visible,.site-footer :focus-visible{outline-color:var(--marker)}

/* ---------- 3. 中文排版层级 ---------- */
.h-display{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(38px,7vw,72px);
  line-height:1.04;
  letter-spacing:-.02em;
  color:var(--ink);
}
.h-section{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(26px,3.4vw,36px);
  line-height:1.2;
  letter-spacing:-.01em;
  color:var(--ink);
}
.h-card{
  font-family:var(--font-display);
  font-weight:800;
  font-size:20px;
  line-height:1.35;
  color:var(--ink);
}
.lede{font-size:clamp(16px,1.6vw,19px);line-height:1.85;color:var(--ink-soft);max-width:34em}
.prose{max-width:34em}
.prose p{margin:0 0 1.1em}
.prose p:last-child{margin-bottom:0}
.prose h3{
  font-family:var(--font-display);font-weight:800;font-size:20px;
  line-height:1.4;margin:1.6em 0 .6em;color:var(--deep);
}
.prose ul{margin:0 0 1.1em;padding-left:1.1em;list-style:none}
.prose ul li{position:relative;padding-left:14px;margin-bottom:.4em}
.prose ul li::before{
  content:"";position:absolute;left:0;top:.85em;
  width:6px;height:6px;border-radius:50%;background:var(--ocean);
}
.mono{font-family:var(--font-mono);font-size:13px;letter-spacing:.08em}
.mark{background:linear-gradient(180deg,transparent 58%,var(--marker) 58%);font-weight:800;padding:0 2px}
.key{font-weight:800;color:var(--deep)}

/* ---------- 4. 布局容器与网格 ---------- */
.page-wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter)}
.page-main{padding:clamp(26px,4vw,54px) 0 clamp(48px,7vw,96px)}
.section{padding:clamp(30px,5vw,64px) 0}
.section + .section{border-top:1px solid var(--line)}
.section__head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:clamp(18px,3vw,32px)}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.16em;
  color:var(--ocean);text-transform:uppercase;
}
.eyebrow::before{content:"";width:20px;height:1px;background:var(--coral)}

.grid{display:grid;gap:clamp(14px,2vw,24px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}
.grid--2-1{grid-template-columns:minmax(0,2fr) minmax(0,1fr)}
.grid--1-2{grid-template-columns:minmax(0,1fr) minmax(0,2fr)}
.grid--split{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}

/* ---------- 5. 通用组件 ---------- */
.card{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:clamp(18px,2.2vw,26px);
  box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(11,111,184,.32)}
.card--link{display:block}
.card--sunken{background:var(--mist);box-shadow:none}
.card__no{font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:var(--ocean)}

.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 22px;border-radius:var(--r-pill);
  font-weight:800;font-size:15px;line-height:1;
  border:1px solid transparent;
  transition:transform .18s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn:hover{transform:translateY(-2px)}
.btn--coral{background:var(--coral);color:#101820;box-shadow:0 16px 30px -18px rgba(255,107,74,.95)}
.btn--ocean{background:var(--ocean);color:#fff}
.btn--ghost{background:transparent;border-color:var(--line-strong);color:var(--deep)}
.btn--ghost:hover{border-color:var(--ocean);color:var(--ocean)}
.btn--onDark{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.32);color:#fff}
.btn--onDark:hover{background:rgba(255,255,255,.2)}
.btn--sm{padding:9px 15px;font-size:13.5px}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;
  padding:4px 9px;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);color:var(--deep);background:#fff;
}
.tag--palm{background:rgba(47,163,107,.12);border-color:rgba(47,163,107,.4);color:#1f7850}
.tag--coral{background:var(--coral-soft);border-color:rgba(255,107,74,.4);color:#a8331a}
.tag--marker{background:var(--marker);border-color:rgba(16,24,32,.16);color:var(--ink)}

.crumbs{padding:14px 0 0}
.crumbs__list{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:var(--ink-soft)}
.crumbs__item{display:inline-flex;align-items:center;gap:10px}
.crumbs__item + .crumbs__item::before{content:"/";color:var(--line-strong)}
.crumbs__link{color:var(--ocean);transition:color .18s var(--ease)}
.crumbs__link:hover{color:var(--coral)}
.crumbs__current{color:var(--ink)}

.legend{
  display:flex;flex-wrap:wrap;gap:8px 20px;
  padding:12px 15px;border:1px solid var(--line);
  border-radius:var(--r-sm);background:#fff;
}
.legend__item{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:var(--ink-soft);
}
.legend__dot{width:9px;height:9px;border-radius:50%;background:var(--ocean);flex:0 0 auto}
.legend__dot--coral{background:var(--coral)}
.legend__dot--palm{background:var(--palm)}
.legend__dot--marker{background:var(--marker)}

.filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.filter-bar__cap{font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:var(--ink-soft);margin-right:4px}
.filter-btn{
  padding:8px 15px;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);background:#fff;
  font-size:13.5px;font-weight:700;color:var(--deep);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.filter-btn:hover{border-color:var(--ocean);color:var(--ocean)}
.filter-btn[aria-pressed="true"]{background:var(--deep);border-color:var(--deep);color:#fff}
.filter-empty{
  display:none;font-size:14px;color:var(--ink-soft);
  padding:18px;border:1px dashed var(--line-strong);border-radius:var(--r-md);
}
.filter-empty.is-on{display:block}
[data-tag].is-filtered{display:none !important}

/* ---------- 6. 图片容器基础规则（页面阶段放置 img） ---------- */
.media{
  position:relative;overflow:hidden;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:linear-gradient(135deg,#0B6FB8,#063A63);
  aspect-ratio:16/10;
}
.media > img,.media > picture > img{width:100%;height:100%;object-fit:cover}
.media--wide{aspect-ratio:21/9}
.media--map{aspect-ratio:4/3}
.media--tall{aspect-ratio:3/4}
.media--square{aspect-ratio:1/1}
.media__fallback{
  position:absolute;inset:0;display:grid;place-content:center;gap:8px;text-align:center;
  padding:16px;color:rgba(255,255,255,.78);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.12em;
  background-image:radial-gradient(circle at 1px 1px,rgba(255,255,255,.16) 1px,transparent 0);
  background-size:20px 20px;
}
.media__cap{
  position:absolute;left:0;right:0;bottom:0;
  padding:14px 15px;font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;
  color:#fff;background:linear-gradient(0deg,rgba(4,37,63,.88),transparent);
}
.media__badge{position:absolute;top:12px;left:12px}

/* ---------- 7. 顶部命令栏 ---------- */
.scroll-progress{
  position:fixed;top:0;left:0;right:0;height:3px;z-index:90;
  background:rgba(6,58,99,.18);pointer-events:none;
}
.scroll-progress__bar{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--coral),var(--marker));
  transition:width .12s linear;
}

.site-skip{
  position:absolute;top:-80px;left:14px;z-index:100;
  padding:10px 18px;border-radius:0 0 12px 12px;
  background:var(--marker);color:var(--ink);font-weight:800;font-size:14px;
  transition:top .18s var(--ease);
}
.site-skip:focus{top:0}

.cmdbar{
  position:sticky;top:0;z-index:60;
  background:linear-gradient(115deg,#063A63 0%,#0B6FB8 58%,#095d9c 100%);
  color:#fff;
  border-bottom:1px solid rgba(255,255,255,.14);
}
.cmdbar::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(circle at 1px 1px,rgba(255,255,255,.14) 1px,transparent 0);
  background-size:24px 24px;opacity:.5;
}
.cmdbar__inner{
  position:relative;
  max-width:var(--wrap);margin:0 auto;
  padding:0 var(--gutter);
  min-height:var(--bar-h);
  display:flex;align-items:center;
  gap:clamp(10px,2vw,24px);
}

.brand{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto;padding:6px 0;color:#fff}
.brand__mark{width:38px;height:38px;flex:0 0 auto;color:#fff}
.brand__mark svg{width:100%;height:100%;overflow:visible}
.brand__line{
  stroke:rgba(255,255,255,.9);
  stroke-dasharray:80;stroke-dashoffset:80;
  animation:link-draw 1.2s var(--ease) forwards;
}
.brand__node{
  fill:var(--coral);
  transform-box:fill-box;transform-origin:center;
  animation:node-breathe 3s ease-in-out infinite;
}
.brand__mark circle:nth-of-type(1){animation-delay:0s}
.brand__mark circle:nth-of-type(2){animation-delay:.18s}
.brand__mark circle:nth-of-type(3){animation-delay:.36s}
.brand__mark circle:nth-of-type(4){animation-delay:.54s}
.brand__text{display:flex;flex-direction:column;line-height:1.05}
.brand__name{font-family:var(--font-display);font-weight:900;font-size:19px;letter-spacing:.02em}
.brand__tagline{
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.14em;
  color:rgba(255,255,255,.6);margin-top:3px;
}

.primary-nav{display:flex;margin-left:auto}
.primary-nav__list{display:flex;align-items:center;gap:2px}
.primary-nav__item{position:relative}
.primary-nav__link{
  position:relative;display:inline-flex;align-items:baseline;gap:6px;
  padding:9px 12px 11px;border-radius:var(--r-sm);
  font-size:15px;color:rgba(255,255,255,.82);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.primary-nav__link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:5px;height:2px;border-radius:2px;
  background:var(--coral);transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.primary-nav__link:hover{background:rgba(255,255,255,.1);color:#fff}
.primary-nav__link:hover::after{transform:scaleX(1)}
.primary-nav__link[aria-current="page"]{color:#fff;font-weight:800;background:rgba(255,255,255,.13)}
.primary-nav__link[aria-current="page"]::after{transform:scaleX(1)}
.primary-nav__idx{
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.08em;
  color:rgba(255,255,255,.5);
}
.primary-nav__link[aria-current="page"] .primary-nav__idx{color:var(--coral)}

.nav-toggle{
  display:none;align-items:center;gap:9px;margin-left:auto;
  padding:9px 13px;border-radius:var(--r-sm);
  border:1px solid rgba(255,255,255,.3);
  color:#fff;font-size:13px;
}
.nav-toggle__bars{display:inline-flex;flex-direction:column;gap:3px;width:16px}
.nav-toggle__bars span{display:block;height:2px;border-radius:2px;background:currentColor;transition:transform .22s var(--ease),opacity .18s}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

.cmdbar__tools{
  display:flex;align-items:center;gap:9px;
  margin-left:8px;padding-left:14px;
  border-left:1px solid var(--line-light);
}
.cmd-open{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 13px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.3);
  background:rgba(255,255,255,.07);
  font-size:13px;color:rgba(255,255,255,.94);
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.cmd-open:hover{background:rgba(255,255,255,.18);border-color:rgba(255,255,255,.55)}
.cmd-open__icon{
  position:relative;display:inline-block;width:13px;height:13px;
  border-radius:50%;border:1.6px solid currentColor;
}
.cmd-open__icon::after{
  content:"";position:absolute;right:-4px;bottom:-3px;
  width:7px;height:1.6px;border-radius:2px;background:currentColor;
  transform:rotate(45deg);
}
.fav-btn{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 13px;border-radius:var(--r-pill);
  background:var(--coral);color:#101820;
  font-weight:800;font-size:13px;
  box-shadow:0 10px 22px -14px rgba(255,107,74,1);
  transition:transform .18s var(--ease),background .2s var(--ease);
}
.fav-btn:hover{transform:translateY(-1px)}
.fav-btn[aria-pressed="true"]{background:var(--marker)}
.fav-btn__star{font-size:12px;line-height:1}
.fav-btn__count{
  font-family:var(--font-mono);font-size:11px;min-width:20px;text-align:center;
  background:rgba(16,24,32,.14);border-radius:var(--r-pill);padding:1px 5px;
}
.sync-note{
  display:inline-flex;align-items:center;gap:7px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;
  color:rgba(255,255,255,.62);white-space:nowrap;
}
.sync-note__dot{
  width:7px;height:7px;border-radius:50%;background:var(--palm);
  box-shadow:0 0 0 3px rgba(47,163,107,.24);
  animation:node-breathe 3s ease-in-out infinite;
}

.cmd-panel{
  position:absolute;right:var(--gutter);top:calc(100% + 10px);
  width:min(322px,calc(100vw - 32px));
  background:#fff;color:var(--ink);
  border:1px solid var(--mist);border-radius:var(--r-md);
  box-shadow:var(--sh-2);padding:12px;z-index:70;
}
.cmd-panel__cap{
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.12em;
  color:var(--ink-soft);margin:0 0 8px;padding-left:4px;
}
.cmd-panel__list{display:grid;gap:2px}
.cmd-panel__link{
  display:grid;grid-template-columns:28px 1fr auto;align-items:center;gap:8px;
  padding:9px 10px;border-radius:var(--r-sm);font-size:14.5px;
  transition:background .18s var(--ease);
}
.cmd-panel__link:hover,.cmd-panel__link:focus-visible{background:var(--mist)}
.cmd-panel__no{font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;color:var(--ocean)}
.cmd-panel__hint{font-family:var(--font-mono);font-size:10.5px;color:var(--ink-soft)}

@keyframes link-draw{to{stroke-dashoffset:0}}
@keyframes node-breathe{
  0%,100%{transform:scale(1);opacity:1}
  50%{transform:scale(1.24);opacity:.72}
}
@keyframes nav-drop{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}

/* ---------- 8. 页脚 ---------- */
.site-footer{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#063A63 0%,#04253f 66%,#031d31 100%);
  color:rgba(255,255,255,.86);
  border-top:1px solid rgba(255,255,255,.14);
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(circle at 1px 1px,rgba(255,255,255,.1) 1px,transparent 0);
  background-size:26px 26px;opacity:.55;
}
.site-footer__inner{
  position:relative;max-width:var(--wrap);margin:0 auto;
  padding:clamp(34px,5vw,64px) var(--gutter) 28px;
}
.footer-route{padding-bottom:clamp(22px,3vw,34px);border-bottom:1px solid rgba(255,255,255,.14)}
.footer-route__cap{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  color:rgba(255,255,255,.5);margin-bottom:14px;
}
.footer-route__list{display:flex;flex-wrap:wrap;align-items:center;gap:4px 0}
.footer-route__item{display:flex;align-items:center}
.footer-route__item + .footer-route__item::before{
  content:"";flex:0 0 auto;
  width:clamp(8px,2vw,34px);height:1px;
  background:linear-gradient(90deg,rgba(255,255,255,.2),rgba(255,255,255,.5));
}
.footer-route__link{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 5px;border-radius:var(--r-sm);
  font-size:13.5px;color:rgba(255,255,255,.78);white-space:nowrap;
  transition:color .18s var(--ease);
}
.footer-route__link::before{
  content:"";flex:0 0 auto;width:8px;height:8px;border-radius:50%;
  background:var(--ocean);box-shadow:0 0 0 2px rgba(255,255,255,.22);
  transition:background .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease);
}
.footer-route__link:hover{color:#fff}
.footer-route__link:hover::before{background:var(--coral);box-shadow:0 0 0 3px rgba(255,107,74,.34);transform:scale(1.15)}
.footer-route__no{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.1em;color:rgba(255,255,255,.45)}

.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.7fr;
  gap:clamp(20px,3vw,44px);
  padding:clamp(26px,4vw,44px) 0;
  border-bottom:1px solid rgba(255,255,255,.14);
}
.footer-col{min-width:0}
.footer-col__title{
  font-family:var(--font-display);
  font-size:13px;font-weight:800;letter-spacing:.06em;
  color:#fff;margin:0 0 15px;
}
.footer-mark{
  font-family:var(--font-display);font-weight:900;font-size:22px;
  letter-spacing:.02em;color:#fff;margin:0 0 9px;
}
.footer-mark__tag{font-size:13.5px;line-height:1.75;color:rgba(255,255,255,.6);margin:0 0 14px;max-width:26em}
.footer-kv{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:rgba(255,255,255,.55);margin:0}
.footer-kv__k{color:var(--coral);margin-right:9px}

.footer-links{display:grid;gap:10px}
.footer-links__a{
  display:inline-flex;align-items:center;gap:0;
  font-size:14px;color:rgba(255,255,255,.78);
  transition:color .18s var(--ease);
}
.footer-links__a::before{
  content:"";width:0;height:1px;background:var(--coral);margin-right:0;
  transition:width .2s var(--ease),margin-right .2s var(--ease);
}
.footer-links__a:hover{color:#fff}
.footer-links__a:hover::before{width:12px;margin-right:8px}

.footer-contact{display:grid;gap:12px}
.footer-contact__item{
  display:grid;grid-template-columns:auto 1fr;gap:10px;
  align-items:baseline;font-size:13.5px;line-height:1.7;
}
.footer-contact__k{
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.1em;
  color:var(--palm);white-space:nowrap;
}
.footer-contact__v{color:rgba(255,255,255,.82);word-break:break-word}

.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px 26px;
  align-items:baseline;justify-content:space-between;
  padding-top:20px;
}
.footer-legal{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;
  color:rgba(255,255,255,.5);margin:0;
}
.footer-note{font-size:12.5px;line-height:1.8;color:rgba(255,255,255,.5);margin:0;max-width:62em}
.footer-note__a{color:var(--coral-soft);text-decoration:underline;text-underline-offset:3px}
.footer-note__a:hover{color:#fff}

/* ---------- 9. 动效显现 ---------- */
html.js-on [data-reveal]{
  opacity:0;transform:translateY(14px);
  transition:opacity .55s var(--ease),transform .55s var(--ease);
}
html.js-on [data-reveal].is-in{opacity:1;transform:none}

/* ---------- 10. 响应式 ---------- */
@media (max-width:1180px){
  .sync-note{display:none}
}
@media (max-width:1024px){
  .brand__tagline{display:none}
  .primary-nav__idx{display:none}
  .primary-nav__link{padding:9px 9px 11px;font-size:14.5px}
  .grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:960px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-col--brand{grid-column:1 / -1}
}
@media (max-width:900px){
  :root{--bar-h:60px}
  .nav-toggle{display:inline-flex}
  .cmdbar__tools{margin-left:auto;padding-left:0;border-left:0}
  .cmd-open__text{display:none}
  .fav-btn__text{display:none}
  .primary-nav{
    position:absolute;left:0;right:0;top:100%;
    display:none;margin:0;
    background:linear-gradient(180deg,#063A63,#04253f);
    border-top:1px solid rgba(255,255,255,.14);
    box-shadow:0 28px 52px -30px rgba(0,0,0,.85);
    padding:6px var(--gutter) 18px;
    max-height:calc(100vh - var(--bar-h));
    overflow-y:auto;
  }
  .primary-nav[data-open]{display:block;animation:nav-drop .24s var(--ease)}
  .primary-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .primary-nav__item + .primary-nav__item{border-top:1px solid rgba(255,255,255,.1)}
  .primary-nav__link{display:flex;width:100%;padding:15px 6px;font-size:17px;border-radius:0}
  .primary-nav__link::after{left:0;right:auto;width:24px;bottom:8px}
  .primary-nav__idx{display:inline}
  .cmd-panel{left:12px;right:12px;width:auto;top:calc(100% + 6px)}
  .grid--split,.grid--2-1,.grid--1-2,.grid--3{grid-template-columns:minmax(0,1fr)}
  .section__head{align-items:flex-start}
}
@media (min-width:901px){
  .primary-nav{display:flex}
  .primary-nav[data-open]{display:flex}
}
@media (max-width:640px){
  body{font-size:16px}
  .grid--2,.grid--4{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .media--tall{aspect-ratio:4/5}
  .brand__name{font-size:17px}
  .brand__mark{width:34px;height:34px}
}

/* ---------- 11. 无障碍与减少动效 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  html.js-on [data-reveal]{opacity:1 !important;transform:none !important}
  .btn:hover,.card:hover,.fav-btn:hover{transform:none}
  .scroll-progress__bar{transition:none}
}
@media print{
  .cmdbar,.scroll-progress,.site-skip{display:none}
  body{background:#fff}
}