/* ============================================================
   EEUICC.COM — 联合体门户 · Liquid Glass 设计系统 v1
   融合资源：
   · Eeuicc 品牌色板  #0A4FD6 / #1D7BF0 / #45C8FF / #5AB5F7
   · LG-50/1 玻璃材质模板（D:\eUICC-HUB\03-DESIGN\Liquid-Glass）
   · BRAND.md（simcat.org 库）排版与动效规则
   ============================================================ */

/* ---------- 1. 设计令牌 ---------- */
:root{
  /* 品牌色 */
  --ee-c1:#0a4fd6; --ee-c2:#1d7bf0; --ee-c3:#45c8ff; --ee-ring:#5ab5f7;
  /* 极光多彩（点缀，克制使用） */
  --aurora-violet:#8b5cf6; --aurora-pink:#ec4899; --aurora-teal:#14b8a6;
  --aurora-amber:#f59e0b;  --aurora-green:#34d399; --aurora-rose:#fb7185;
  /* LG-50/1 浅色材质 */
  --page:#f4f6fb;
  --ink:#151922;
  --muted:#596372;
  --line:#e3e6ee;
  --accent:#0066df;
  --accent-2:#0ea5a0;
  --warn:#b57f50;
  --ok:#1a9e77;
  /* 玻璃 */
  --glass-bg:linear-gradient(135deg,rgba(255,255,255,.66),rgba(255,255,255,.30));
  --glass-bg-strong:linear-gradient(135deg,rgba(255,255,255,.78),rgba(255,255,255,.42));
  --glass-brd:rgba(255,255,255,.60);
  --glass-brd-soft:rgba(255,255,255,.38);
  --glass-blur:16px;
  --glass-shadow:0 10px 34px rgba(20,38,75,.10),0 2px 8px rgba(20,38,75,.05);
  --glass-inset:inset 0 1px 0 rgba(255,255,255,.75),inset 0 -1px 0 rgba(255,255,255,.18);
  /* 布局（BRAND.md） */
  --maxw:1180px;
  --r-lg:22px; --r-md:14px; --r-sm:10px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI Variable Display","Segoe UI",Inter,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --mono:ui-monospace,"Cascadia Code",Consolas,"SF Mono",monospace;
  --nav-h:64px;
  --ease:cubic-bezier(.22,.8,.28,1);
}
html[data-theme="dark"]{
  --page:#070a10;
  --ink:#e9eff8;
  --muted:#97a4b8;
  --line:rgba(151,164,184,.16);
  --accent:#78b7ff;
  --accent-2:#7ee0c3;
  --warn:#ffcf8a;
  --ok:#7ee0c3;
  --glass-bg:linear-gradient(135deg,rgba(22,30,46,.66),rgba(13,18,29,.42));
  --glass-bg-strong:linear-gradient(135deg,rgba(26,36,55,.80),rgba(15,21,33,.60));
  --glass-brd:rgba(151,184,255,.16);
  --glass-brd-soft:rgba(151,184,255,.10);
  --glass-shadow:0 14px 44px rgba(0,0,0,.44),0 2px 8px rgba(0,0,0,.30);
  --glass-inset:inset 0 1px 0 rgba(180,205,255,.14),inset 0 -1px 0 rgba(0,0,0,.25);
}

/* ---------- 2. 基础 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
html:focus-within{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);background:var(--page);color:var(--ink);
  line-height:1.65;font-size:16px;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
  transition:background .5s var(--ease),color .5s var(--ease);
}
::selection{background:rgba(29,123,240,.25)}
h1,h2,h3,h4{line-height:1.18;letter-spacing:-.025em;margin:0}
p{margin:0}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:none}
img,svg{display:block;max-width:100%}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}

.skip-link{position:fixed;top:-48px;left:16px;z-index:200;background:var(--ee-c2);color:#fff;
  padding:10px 16px;border-radius:var(--r-sm);transition:top .2s}
.skip-link:focus{top:12px}

.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
section[id]{scroll-margin-top:96px}

/* ---------- 3. 极光背景 ---------- */
.aurora{position:fixed;inset:0;z-index:-2;overflow:hidden;pointer-events:none}
.aurora::after{ /* 细腻噪点，玻璃颗粒质感 */
  content:"";position:absolute;inset:-50%;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E");
  opacity:.05;mix-blend-mode:overlay;
}
.aurora .blob{position:absolute;border-radius:50%;filter:blur(60px);opacity:.5;will-change:transform;contain:layout style}
.aurora .b1{width:56vmax;height:56vmax;left:-14vmax;top:-20vmax;
  background:radial-gradient(circle at 35% 35%,rgba(69,200,255,.55),transparent 62%);
  animation:drift1 26s var(--ease) infinite alternate}
.aurora .b2{width:44vmax;height:44vmax;right:-12vmax;top:-8vmax;
  background:radial-gradient(circle at 60% 40%,rgba(139,92,246,.42),transparent 60%);
  animation:drift2 32s var(--ease) infinite alternate}
.aurora .b3{width:40vmax;height:40vmax;left:22vw;bottom:-24vmax;
  background:radial-gradient(circle at 50% 50%,rgba(20,184,166,.36),transparent 60%);
  animation:drift3 29s var(--ease) infinite alternate}
.aurora .b4{width:30vmax;height:30vmax;right:6vw;bottom:-14vmax;
  background:radial-gradient(circle at 50% 50%,rgba(236,72,153,.30),transparent 62%);
  animation:drift2 24s var(--ease) infinite alternate-reverse}
html[data-theme="dark"] .aurora .blob{opacity:.30}
html[data-theme="dark"] .aurora .b1{background:radial-gradient(circle at 35% 35%,rgba(29,90,220,.50),transparent 62%)}
html[data-theme="dark"] .aurora .b2{background:radial-gradient(circle at 60% 40%,rgba(109,40,217,.42),transparent 60%)}
html[data-theme="dark"] .aurora .b3{background:radial-gradient(circle at 50% 50%,rgba(13,148,136,.36),transparent 60%)}
html[data-theme="dark"] .aurora .b4{background:radial-gradient(circle at 50% 50%,rgba(190,24,93,.30),transparent 62%)}
html[data-theme="dark"] .aurora::after{opacity:.07}
@keyframes drift1{to{transform:translate3d(9vmax,7vmax,0) scale(1.12)}}
@keyframes drift2{to{transform:translate3d(-8vmax,9vmax,0) scale(1.18) rotate(24deg)}}
@keyframes drift3{to{transform:translate3d(7vmax,-8vmax,0) scale(1.08)}}

/* ---------- 4. 玻璃基材 ---------- */
.glass{
  position:relative;
  background:var(--glass-bg);
  -webkit-backdrop-filter:blur(var(--glass-blur)) saturate(1.65);
  backdrop-filter:blur(var(--glass-blur)) saturate(1.65);
  border:1px solid var(--glass-brd);
  border-radius:var(--r-lg);
  box-shadow:var(--glass-shadow),var(--glass-inset);
  transition:transform .45s var(--ease),box-shadow .45s var(--ease),
             background .45s var(--ease),border-color .45s var(--ease);
}
.glass:hover{box-shadow:0 18px 48px rgba(20,38,75,.14),var(--glass-inset)}
/* 高光扫过（悬停时顶部弧光） */
.glass::before{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:radial-gradient(360px circle at var(--mx,50%) var(--my,-20%),
             rgba(255,255,255,.38),transparent 42%);
  opacity:0;transition:opacity .4s;
}
html[data-theme="dark"] .glass::before{
  background:radial-gradient(360px circle at var(--mx,50%) var(--my,-20%),
             rgba(150,195,255,.16),transparent 44%);
}
.glass:hover::before{opacity:1}
/* 玻璃顶棱高光线（带品牌色渐变描边） */
.glass::after{
  content:"";position:absolute;left:8%;right:8%;top:0;height:1px;pointer-events:none;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.85) 30%,rgba(69,200,255,.75) 55%,transparent);
  border-radius:1px;
}
html[data-theme="dark"] .glass::after{
  background:linear-gradient(90deg,transparent,rgba(170,205,255,.35),transparent);
}

/* ---------- 5. 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  padding:14px 0;
}
.nav-shell{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:10px 14px 10px 18px;border-radius:999px;
}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink)}
.brand .brand-name{font-weight:800;font-size:1.06rem;letter-spacing:.02em}
.brand-badge{font-family:var(--mono);font-size:.68rem;color:var(--muted);
  border:1px solid var(--line);border-radius:999px;padding:2px 9px;margin-left:2px}
.nav{display:flex;gap:4px}
.nav a{
  color:var(--muted);font-size:.9rem;font-weight:500;padding:8px 14px;border-radius:999px;
  transition:color .25s,background .25s;
}
.nav a:hover{color:var(--ink);background:rgba(29,123,240,.09)}
.header-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  display:grid;place-items:center;width:38px;height:38px;border-radius:50%;
  border:1px solid var(--glass-brd);background:var(--glass-bg);color:var(--ink);
  cursor:pointer;font-size:1rem;transition:transform .3s var(--ease),background .3s;
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.icon-btn:hover{transform:rotate(18deg) scale(1.06)}
.menu-toggle{display:none}

/* 主题切换按钮里的图标 */
[data-theme-icon]{font-size:1.05rem;line-height:1}

.hero-grid{
  display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center;
}
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);border:1px solid var(--glass-brd);border-radius:999px;
  padding:7px 14px;margin-bottom:22px;
  background:var(--glass-bg);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
  background:var(--ee-c3);box-shadow:0 0 10px var(--ee-c3);
  animation:pulse 2.4s ease-in-out infinite}
@keyframes pulse{50%{opacity:.35;transform:scale(.8)}}
.hero h1{
  font-size:clamp(3rem,6.4vw,4.6rem);font-weight:800;letter-spacing:-.035em;
  display:flex;align-items:baseline;
}
.brand-sub{
  margin-top:20px;
  font-family:Georgia,"Times New Roman",serif;
  font-size:clamp(1.8rem,3.2vw,2.7rem);
  font-weight:700;font-style:italic;letter-spacing:.02em;
  background:linear-gradient(115deg,#0a4fd6 0%,#1d7bf0 28%,#45c8ff 52%,#8ad9ff 72%,#1d7bf0 100%);
  background-size:200% 100%;
  -webkit-background-clip:text;background-clip:text;color:transparent;
  animation:brandFlow 7s ease-in-out infinite;
  filter:drop-shadow(0 8px 26px rgba(29,123,240,.35));
}
@keyframes brandFlow{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}
html[data-theme="dark"] .brand-sub{
  background-image:linear-gradient(110deg,#45c8ff,#8ad9ff 38%,#a78bfa 68%,#45c8ff);
  filter:drop-shadow(0 6px 22px rgba(69,200,255,.30));
}
.gradient-text{
  background:linear-gradient(120deg,var(--ee-c1),var(--ee-c2) 45%,var(--ee-c3));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero .lede{font-size:1.13rem;line-height:2;color:var(--muted);max-width:33em;margin:22px 0 32px}
.hero .lede strong{color:var(--ink);font-weight:700}
.hero .lede strong:first-of-type{background:linear-gradient(115deg,var(--ee-c2),var(--ee-c3));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lede em{font-style:normal;font-family:var(--mono);font-size:.92em;color:var(--accent)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-stats{display:flex;gap:10px;flex-wrap:wrap;margin-top:34px}

.stat-chip{
  display:flex;flex-direction:column;gap:4px;padding:16px 24px;border-radius:var(--r-md);
  min-width:158px;
  background:var(--glass-bg-strong);border:1px solid var(--glass-brd);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:var(--glass-inset);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}
.stat-chip b{
  font-size:1.7rem;line-height:1.1;letter-spacing:-.02em;
  background:linear-gradient(115deg,var(--ee-c1),var(--ee-c2) 55%,var(--ee-c3));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-chip span{
  font-size:1.18rem;font-weight:700;color:var(--ink);letter-spacing:.12em;
}
.stat-chip:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(29,123,240,.18)}

/* 按钮 */
.button{
  display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:.94rem;
  padding:12px 22px;border-radius:999px;border:1px solid transparent;cursor:pointer;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),background .3s;
}
.button.primary{
  color:#fff;
  background:linear-gradient(120deg,var(--ee-c1),var(--ee-c2) 60%,var(--ee-c3));
  box-shadow:0 8px 24px rgba(29,123,240,.35),inset 0 1px 0 rgba(255,255,255,.35);
}
.button.primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(29,123,240,.42),inset 0 1px 0 rgba(255,255,255,.35)}.button.primary{position:relative;overflow:hidden}
.button.primary::after{
  content:"";position:absolute;top:0;bottom:0;left:-70%;width:45%;
  background:linear-gradient(105deg,transparent,rgba(255,255,255,.45),transparent);
  transform:skewX(-18deg);transition:left .55s var(--ease);
}
.button.primary:hover::after{left:130%}
.button.ghost{
  color:var(--ink);background:var(--glass-bg);border-color:var(--glass-brd);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
.button.ghost:hover{transform:translateY(-2px)}
.button.small{padding:8px 16px;font-size:.84rem}
.header-actions .button{white-space:nowrap;flex-shrink:0}
.button .arrow{transition:transform .3s var(--ease)}
.button:hover .arrow{transform:translateX(4px)}

/* Hero 视觉：液态镜片卡 */
.hero-visual{position:relative;perspective:1200px}
.lens-card{
  padding:26px;border-radius:28px;
  background:var(--glass-bg-strong);
  -webkit-backdrop-filter:blur(22px) saturate(1.8);
  backdrop-filter:blur(22px) saturate(1.8);
  border:1px solid var(--glass-brd);
  box-shadow:0 24px 70px rgba(10,79,214,.16),var(--glass-inset);
  transform-style:preserve-3d;
  transition:transform .5s var(--ease);
  position:relative;overflow:hidden;
}
.lens-card .lens-sheen{
  position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(600px 200px at 18% 0%,rgba(255,255,255,.5),transparent 60%),
    radial-gradient(420px 260px at 88% 110%,rgba(69,200,255,.20),transparent 65%);
  mix-blend-mode:soft-light;
}
.lens-tag{
  font-family:var(--mono);font-size:.66rem;letter-spacing:.22em;color:var(--muted);
  text-transform:uppercase;display:flex;justify-content:space-between;margin-bottom:18px;
}
.brand-board{display:grid;grid-template-columns:1.5fr 1fr;gap:12px}
.bb-tile{
  border-radius:var(--r-md);padding:18px;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:10px;min-height:120px;
  background:rgba(255,255,255,.34);border:1px solid var(--glass-brd-soft);
  transition:background .3s;
}
html[data-theme="dark"] .bb-tile{background:rgba(10,16,28,.42)}
.bb-tile.wide{grid-row:span 2}
.bb-label{font-family:var(--mono);font-size:.62rem;letter-spacing:.18em;color:var(--muted);text-transform:uppercase}
.bb-word{font-size:1.9rem;font-weight:800;letter-spacing:-.03em}
.bb-word.small{font-size:1.2rem}
.bb-swatches{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}
.bb-swatch{display:flex;align-items:center;gap:6px;font-family:var(--mono);
  font-size:.62rem;color:var(--muted)}
.bb-swatch i{width:16px;height:16px;border-radius:5px;box-shadow:inset 0 0 0 1px rgba(255,255,255,.5)}
.lens-status{
  margin-top:16px;display:flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:.74rem;color:var(--muted);
}
.lens-status .ok-dot{width:8px;height:8px;border-radius:50%;background:var(--ok);
  box-shadow:0 0 8px var(--ok)}
/* 液态折射装饰条 */
.lens-wave{
  height:52px;margin-top:16px;border-radius:var(--r-md);
  border:1px solid var(--glass-brd-soft);
  background:linear-gradient(120deg,rgba(10,79,214,.14),rgba(69,200,255,.16),rgba(139,92,246,.12));
  filter:url(#liquid-warp);
}
/* ---------- 7. 区块通用 ---------- */
.section{padding:76px 0}
.section.tight{padding:56px 0}
.section-head{
  display:grid;grid-template-columns:1.2fr .8fr;gap:28px;align-items:end;margin-bottom:38px;
}
.section-head h2{font-size:clamp(1.6rem,3vw,2.2rem);font-weight:750}
.section-head p{color:var(--muted);font-size:.98rem}

/* ---------- 8. 三品牌 / 生态卡 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{padding:26px;display:flex;flex-direction:column;gap:14px}
.card-top{display:flex;align-items:center;justify-content:space-between}
.card-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;color:#fff;
  background:linear-gradient(135deg,var(--card-c1,#0a4fd6),var(--card-c2,#45c8ff));
  box-shadow:0 8px 20px color-mix(in srgb,var(--card-c1,#0a4fd6) 38%,transparent);
}
.card h3{font-size:1.14rem}
.card .domain{font-family:var(--mono);font-size:.78rem;color:var(--muted);letter-spacing:.02em}
.card p{color:var(--muted);font-size:.92rem;flex:1}
.card-link{
  display:inline-flex;align-items:center;gap:7px;font-weight:600;font-size:.88rem;
  color:var(--accent);margin-top:2px;
}
.card-link .arrow{transition:transform .3s var(--ease)}
.card-link:hover .arrow{transform:translateX(4px)}


/* ---------- 9. 子站网络（桌面 1×6 → 平板 2×3 → 手机 6×1） ---------- */
.net-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.sub-card{
  padding:20px;display:flex;flex-direction:column;gap:9px;border-radius:var(--r-md);
  color:inherit;position:relative;overflow:hidden;
}
.sub-card .sub-host{
  font-family:var(--mono);font-size:1rem;font-weight:700;letter-spacing:.01em;
  display:flex;align-items:center;white-space:nowrap;
}
.sub-card .sub-host .sub-prefix{color:var(--sub-c,var(--accent))}
.sub-card .sub-desc{font-size:.9rem;color:var(--muted);flex:1}
.sub-card .sub-go{
  font-size:.86rem;font-weight:600;color:var(--sub-c,var(--accent));
  display:inline-flex;align-items:center;gap:6px;
}
.sub-card .arrow{transition:transform .3s var(--ease)}
.sub-card:hover .arrow{transform:translateX(4px)}
.sub-card .sub-glow{
  position:absolute;width:130px;height:130px;right:-40px;top:-40px;border-radius:50%;
  background:radial-gradient(circle,color-mix(in srgb,var(--sub-c,#45c8ff) 30%,transparent),transparent 70%);
  opacity:.5;transition:opacity .4s,transform .6s var(--ease);
}
.sub-card:hover .sub-glow{opacity:.9;transform:scale(1.25)}
/* 平板竖 / 小窗：2 列 3 行 */
@media (max-width:1020px){
  .net-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .net-grid .sub-card{padding:18px}
}
.net-note{
  margin-top:22px;font-size:.88rem;color:var(--muted);
  display:flex;align-items:center;gap:10px;
}
.net-note .info-dot{width:8px;height:8px;border-radius:50%;background:var(--ee-c3);flex-shrink:0}

/* ---------- 10. 治理 ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:start}
.feature-list{display:flex;flex-direction:column;gap:16px;margin-top:26px}
.feature-item{display:flex;gap:16px;align-items:flex-start}
.feature-item .num{
  font-family:var(--mono);font-size:.72rem;font-weight:700;color:var(--accent);
  border:1px solid var(--glass-brd);border-radius:999px;padding:5px 10px;
  background:var(--glass-bg);flex-shrink:0;
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.feature-item strong{display:block;font-size:.96rem;margin-bottom:3px}
.feature-item span:not(.num){color:var(--muted);font-size:.86rem}

.terminal{
  font-family:var(--mono);font-size:.8rem;line-height:1.9;
  padding:24px;border-radius:var(--r-lg);
  background:var(--glass-bg-strong);
  -webkit-backdrop-filter:blur(20px) saturate(1.7);backdrop-filter:blur(20px) saturate(1.7);
  border:1px solid var(--glass-brd);
  box-shadow:var(--glass-shadow),var(--glass-inset);
}
.terminal .line{display:flex;gap:10px;white-space:pre-wrap}
.terminal .prompt{color:var(--accent-2);font-weight:700}
.terminal .cmd{color:var(--ink);font-weight:600}
.terminal .muted{color:var(--muted)}
.terminal .ok{color:var(--ok);font-weight:700}
.terminal .warn{color:var(--warn);font-weight:700}
.seal{
  margin-top:20px;padding:12px 16px;border-radius:var(--r-sm);
  font-size:.8rem;color:var(--muted);display:flex;gap:10px;align-items:flex-start;
  background:color-mix(in srgb,var(--ok) 8%,transparent);
  border:1px dashed color-mix(in srgb,var(--ok) 35%,transparent);
}
.seal-mark{color:var(--ok);font-weight:800}

/* ---------- 11. 路线图 ---------- */
.roadmap{display:flex;flex-direction:column;gap:0;max-width:860px;position:relative}
.roadmap::before{
  content:"";position:absolute;left:15px;top:18px;bottom:18px;width:2px;
  background:linear-gradient(180deg,var(--ee-c3),var(--ee-c1) 60%,transparent);
  opacity:.4;border-radius:2px;
}
.roadmap-item{position:relative;padding:0 0 26px 52px}
.roadmap-item:last-child{padding-bottom:0}
.roadmap-item::before{
  content:"";position:absolute;left:7px;top:7px;width:18px;height:18px;border-radius:50%;
  background:var(--page);border:2.5px solid var(--ee-c2);
  box-shadow:0 0 0 4px color-mix(in srgb,var(--ee-c2) 14%,transparent);
}
.roadmap-item.done::before{background:var(--ee-c2);
  box-shadow:0 0 0 4px color-mix(in srgb,var(--ee-c2) 20%,transparent),0 0 12px color-mix(in srgb,var(--ee-c2) 60%,transparent)}
.roadmap-item .phase{
  display:inline-flex;align-items:center;gap:6px;
  font-size:.8rem;font-weight:700;letter-spacing:.08em;
  color:var(--accent);
  background:color-mix(in srgb,var(--accent) 10%,transparent);
  border:1px solid color-mix(in srgb,var(--accent) 24%,transparent);
  border-radius:999px;padding:3px 12px;margin-bottom:8px;
}
.roadmap-item::before{
  width:20px;height:20px;left:6px;
}
.roadmap-item.done::before{
  box-shadow:0 0 0 5px color-mix(in srgb,var(--ee-c2) 22%,transparent),0 0 16px color-mix(in srgb,var(--ee-c2) 70%,transparent);
}
.roadmap::before{width:2.5px;left:16px;opacity:.55}
.roadmap-item{padding-left:56px}
.roadmap-item h3{transition:color .3s}
.roadmap-item:hover h3{color:var(--accent)}
.roadmap-item h3{font-size:1.04rem;margin-bottom:5px}
.roadmap-item p{color:var(--muted);font-size:.9rem;max-width:44em}

/* ---------- 12. CTA + 页脚 ---------- */
.cta-panel{
  padding:44px;display:grid;grid-template-columns:1.2fr .8fr;gap:30px;align-items:center;
  border-radius:28px;position:relative;overflow:hidden;
  background:var(--glass-bg-strong);
  -webkit-backdrop-filter:blur(22px) saturate(1.8);backdrop-filter:blur(22px) saturate(1.8);
  border:1px solid var(--glass-brd);box-shadow:var(--glass-shadow),var(--glass-inset);
}
.cta-panel h2{font-size:clamp(1.5rem,2.6vw,2rem)}
.cta-panel p{color:var(--muted);margin-top:10px;font-size:.96rem}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}

.site-footer{padding:50px 0 34px;margin-top:40px}
.footer-inner{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px;
  padding:30px;border-radius:var(--r-lg);
  background:var(--glass-bg);border:1px solid var(--glass-brd-soft);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.footer-brand p{color:var(--muted);font-size:.84rem;margin-top:12px;max-width:26em}
.footer-col h4{font-size:.8rem;letter-spacing:.06em;margin-bottom:12px;color:var(--ink)}
.footer-col a{display:block;color:var(--muted);font-size:.84rem;padding:4px 0;transition:color .25s,transform .25s var(--ease)}
.footer-col a:hover{color:var(--accent);transform:translateX(3px)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  margin-top:20px;padding:0 6px;color:var(--muted);font-size:.76rem;font-family:var(--mono);
}

/* ---------- 13. 进场动画 ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal-d1{transition-delay:.08s}.reveal-d2{transition-delay:.16s}.reveal-d3{transition-delay:.24s}

/* ---------- 14. 响应式 ---------- */
@media (max-width:1020px){
  .hero-grid{grid-template-columns:1fr;gap:56px}
  .grid-3{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr;gap:34px}
  .section-head{grid-template-columns:1fr}
  .cta-panel{grid-template-columns:1fr}
  .cta-actions{justify-content:flex-start}
  .footer-inner{grid-template-columns:1fr 1fr}
}
@media (max-width:680px){
  .container{padding:0 18px}
  .hero{padding:48px 0 44px}
  .nav{display:none}
  .menu-toggle{display:grid}
  .hero-stats{display:grid;grid-template-columns:1fr 1fr;gap:10px}
  .nav-shell{padding:8px 10px 8px 14px}
  .nav.open{
    display:flex;flex-direction:column;position:absolute;top:calc(100% + 8px);right:18px;
    padding:10px;min-width:210px;border-radius:var(--r-md);
    background:var(--glass-bg-strong);border:1px solid var(--glass-brd);
    -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
    box-shadow:var(--glass-shadow);
  }
  .grid-3,.net-grid{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr}
  .hero-stats{gap:8px}
  .stat-chip{padding:8px 12px}
  .brand-badge{display:none}
}

/* ---------- 15. 移动端性能：减少模糊层 ---------- */
@media (max-width:680px){
  .aurora .blob{filter:blur(42px)}
  .aurora .b3,.aurora .b4{display:none}
  .glass{-webkit-backdrop-filter:blur(12px) saturate(1.4);backdrop-filter:blur(12px) saturate(1.4)}
}

/* ---------- 15b. 子页表格 ---------- */
.hw-table{width:100%;border-collapse:collapse;font-size:.9rem;min-width:640px}
.hw-table th,.hw-table td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line)}
.hw-table th{font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:600}
.hw-table tr:last-child td{border-bottom:none}
.hw-table tbody tr{transition:background .25s}
.hw-table tbody tr:hover{background:rgba(29,123,240,.05)}
.hw-table .mono{font-family:var(--mono);font-size:.82rem;color:var(--muted)}
.hw-tag{font-family:var(--mono);font-size:.74rem;color:var(--warn);
  border:1px dashed color-mix(in srgb,var(--warn) 40%,transparent);
  border-radius:999px;padding:4px 10px;white-space:nowrap}

/* ---------- 16. 404 页 ---------- */
.nf-wrap{
  min-height:100vh;display:grid;place-items:center;padding:24px;
}
.nf-card{max-width:520px;padding:48px 44px;text-align:center}
.nf-code{font-size:5.4rem;font-weight:800;letter-spacing:-.04em;line-height:1;
  background:linear-gradient(120deg,var(--ee-c1),var(--ee-c2) 45%,var(--ee-c3));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.nf-card h1{font-size:1.4rem;margin:14px 0 10px}
.nf-card p{color:var(--muted);font-size:.94rem;margin-bottom:26px}
.nf-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* ---------- 17. 品牌微交互 ---------- */
.brand .brand-mark{transition:transform .8s var(--ease)}
.brand:hover .brand-mark{transform:rotate(-10deg) scale(1.06)}
.sub-card .sub-host .sub-prefix{transition:filter .3s}
.sub-card:hover .sub-prefix{filter:brightness(1.15)}

/* ---------- 18. 动效降级 ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* ---------- 19. 多语言切换 ---------- */
.lang-switch{position:relative}
.lang-btn{
  display:inline-flex;align-items:center;gap:8px;
  color:#fff;font-weight:600;font-size:.9rem;
  padding:10px 18px;border-radius:999px;border:1px solid transparent;cursor:pointer;
  background:linear-gradient(120deg,var(--ee-c1),var(--ee-c2) 60%,var(--ee-c3));
  box-shadow:0 8px 24px rgba(29,123,240,.35),inset 0 1px 0 rgba(255,255,255,.35);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
  white-space:nowrap;
}
.lang-btn:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(29,123,240,.42)}
.lang-caret{font-size:.65rem;transition:transform .25s}
.lang-switch.open .lang-caret{transform:rotate(180deg)}
.lang-menu{
  position:absolute;top:calc(100% + 10px);right:0;min-width:200px;
  padding:8px;border-radius:var(--r-md);
  background:var(--glass-bg-strong);border:1px solid var(--glass-brd);
  -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
  box-shadow:var(--glass-shadow);
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .25s,transform .25s,visibility .25s;
  z-index:80;
}
.lang-switch.open .lang-menu{opacity:1;visibility:visible;transform:none}
.lang-item{
  display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;
  padding:9px 12px;border:none;background:transparent;border-radius:9px;
  color:var(--ink);font-size:.88rem;font-weight:600;cursor:pointer;text-align:left;
  font-family:inherit;transition:background .2s;
}
.lang-item:hover{background:rgba(29,123,240,.1)}
.lang-item .lang-check{color:var(--accent-2);font-weight:800}
.lang-soon{font-size:.64rem;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:2px 7px;white-space:nowrap}
.ee-toast{
  position:fixed;left:50%;bottom:34px;transform:translateX(-50%) translateY(16px);
  background:var(--glass-bg-strong);border:1px solid var(--glass-brd);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  color:var(--ink);font-size:.88rem;font-weight:600;
  padding:11px 22px;border-radius:999px;box-shadow:var(--glass-shadow);
  opacity:0;transition:opacity .3s,transform .3s var(--ease);z-index:150;pointer-events:none;
}
.ee-toast.show{opacity:1;transform:translateX(-50%)}

/* ---------- 20. 通行证按钮 ---------- */
.hero-stats{display:flex;align-items:center;gap:16px;margin-top:34px;flex-wrap:wrap}
.pass-btn{
  display:inline-flex;align-items:center;gap:10px;
  font-size:1.06rem;font-weight:700;color:#fff;
  padding:16px 32px;border-radius:999px;
  background:linear-gradient(120deg,var(--ee-c1),var(--ee-c2) 55%,var(--ee-c3));
  box-shadow:0 12px 34px rgba(29,123,240,.4),inset 0 1px 0 rgba(255,255,255,.35);
  position:relative;overflow:hidden;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.pass-btn::after{content:"";position:absolute;top:0;bottom:0;left:-70%;width:45%;
  background:linear-gradient(105deg,transparent,rgba(255,255,255,.45),transparent);
  transform:skewX(-18deg);transition:left .55s var(--ease)}
.pass-btn:hover{transform:translateY(-3px);box-shadow:0 18px 44px rgba(29,123,240,.5)}
.pass-btn:hover::after{left:130%}
.pass-btn .arrow{transition:transform .3s var(--ease)}
.pass-btn:hover .arrow{transform:translateX(4px)}
.pass-hint{font-family:var(--mono);font-size:.78rem;color:var(--muted);letter-spacing:.08em}
@media (max-width:680px){
  .pass-btn{width:100%;justify-content:center}
}
@media (prefers-reduced-motion:reduce){
  .brand-sub,.pass-btn::after,.lang-caret{animation:none!important;transition:none!important}
}