/* ========================================
   APIModule — Developer API Infrastructure
   Dual-theme (light default / dark manual)
   Fonts: Space Grotesk / Manrope / JetBrains Mono
   ======================================== */

/* ---- LIGHT TOKENS (default) ---- */
:root {
  --bg:#f5f7fc; --ink:#0e1320; --ink-2:#5b6577; --ink-3:#64748b;
  --card:#ffffff; --primary:#465fff; --primary-strong:#3546d3; --primary-soft:#e7ebff;
  --line:#e2e6f0; --mint:#0f9d6b; --amber:#d97706; --coral:#c73c31;
  --radius:0.9rem;
  --am-grid:rgba(16,24,40,.035); --am-glow1:rgba(70,95,255,.10); --am-glow2:rgba(15,157,107,.07);
  --am-hair:rgba(16,24,40,.06);
  --am-shadow:0 1px 2px rgba(16,24,40,.05),0 10px 30px -18px rgba(16,24,40,.25);
  --am-shadow-hover:0 18px 40px -20px rgba(40,60,140,.45);
  --code-bg:#0e1320; --code-head:#0a0f1a; --code-line:#1e2a3e;
  --display:'Space Grotesk',sans-serif;
  --body:'Manrope',-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;
  --mono:'JetBrains Mono',ui-monospace,'SF Mono',Menlo,monospace;
}

/* ---- DARK TOKENS (manual toggle only) ---- */
html.dark {
  --bg:#0a0d15; --ink:#e7eaf3; --ink-2:#929bb0; --ink-3:#8892a6;
  --card:#11151f; --primary:#2dd4bf; --primary-strong:#14b8a6; --primary-soft:#14241f;
  --line:#232a3a; --mint:#2dd4bf; --amber:#fbbf24; --coral:#fb7185;
  --am-grid:rgba(255,255,255,.022); --am-glow1:rgba(45,212,191,.10); --am-glow2:rgba(99,102,241,.10);
  --am-hair:rgba(255,255,255,.06);
  --am-shadow:0 1px 2px rgba(0,0,0,.4),0 14px 34px -20px rgba(0,0,0,.8);
  --am-shadow-hover:0 20px 44px -20px rgba(0,0,0,.9),0 0 0 1px color-mix(in srgb,var(--primary) 35%,transparent);
  --code-bg:#0d1017; --code-head:#080b11; --code-line:#1a2233;
}

/* ---- RESET ---- */
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  min-width:300px;overflow-x:hidden;
  font-family:var(--body);background:var(--bg);color:var(--ink);
  line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased;
  transition:background .3s,color .3s;
}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{appearance:none;-webkit-appearance:none;-moz-appearance:none;background:none;color:inherit}
code,pre{font-family:var(--mono)}
img{max-width:100%;display:block}

/* ---- AMBIENT BACKGROUND ---- */
body::before{
  content:'';position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    linear-gradient(var(--am-grid) 1px,transparent 1px),
    linear-gradient(90deg,var(--am-grid) 1px,transparent 1px);
  background-size:34px 34px;
}
body::after{
  content:'';position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(ellipse 60% 50% at 12% -8%,var(--am-glow1),transparent),
    radial-gradient(ellipse 50% 45% at 88% 20%,var(--am-glow2),transparent);
}

/* ---- SCROLLBAR ---- */
::-webkit-scrollbar{width:7px;height:7px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--line);border-radius:99px}
::-webkit-scrollbar-thumb:hover{background:var(--ink-3)}

/* ---- FOCUS ---- */
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px}

/* ---- CONTAINER ---- */
.container{max-width:1200px;margin:0 auto;padding:0 clamp(20px,17px + .9375vw,32px)}

/* ---- NAV ---- */
.nav{
  position:sticky;top:0;z-index:100;
  border-bottom:1px solid var(--line);
  background:color-mix(in srgb,var(--bg) 82%,transparent);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  transition:background .3s,border-color .3s;
}
.nav-inner{
  max-width:1200px;min-height:68px;margin:0 auto;padding:12px clamp(20px,17px + .9375vw,32px);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.logo{display:inline-flex;align-items:center;gap:10px;font-family:var(--display);font-weight:700;font-size:18px;letter-spacing:-.03em}
.logo-mark{width:30px;height:30px;flex:0 0 auto}
.logo-text{white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:24px;font-size:14px}
.nav-links a:not(.btn-primary):not(.btn-ghost):not(.theme-toggle){position:relative;padding:4px 0;color:var(--ink-2);font-weight:600;transition:color .18s}
.nav-links a:not(.btn-primary):not(.btn-ghost):not(.theme-toggle):not(.lang-switch)::after{
  content:'';position:absolute;left:0;right:100%;bottom:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),color-mix(in srgb,var(--primary) 55%,#a855f7));
  transition:right .28s cubic-bezier(.16,1,.3,1);
}
.nav-links a:not(.btn-primary):not(.btn-ghost):not(.theme-toggle):hover{color:var(--primary)}
.nav-links a:not(.btn-primary):not(.btn-ghost):not(.theme-toggle):not(.lang-switch):hover::after{right:0}
.lang-switch{
  min-width:30px;padding:4px 7px!important;border:1px solid var(--line)!important;border-radius:7px!important;
  color:var(--ink)!important;font-family:var(--mono)!important;font-size:11px!important;font-weight:700!important;letter-spacing:.04em;
  transition:border-color .18s,background .18s;
}
.lang-switch:hover{background:var(--primary-soft);border-color:var(--primary)!important;color:var(--primary)!important}

/* ---- THEME TOGGLE ---- */
.theme-toggle{
  width:36px;height:36px;border-radius:9px;border:1px solid var(--line);
  background:var(--card);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;transition:border-color .18s,transform .18s,background .18s;
  color:var(--ink-2);line-height:1;
}
.theme-toggle:hover{border-color:var(--primary);transform:scale(1.06)}
.theme-toggle:active{transform:scale(.95)}
html.dark .theme-toggle .icon-sun{display:inline}
html.dark .theme-toggle .icon-moon{display:none}
.theme-toggle .icon-sun{display:none}
.theme-toggle .icon-moon{display:inline}

/* ---- MOBILE NAV TOGGLE + DROPDOWN MENU (<=640px) ---- */
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:4px;
  width:40px;height:40px;padding:10px;border:1px solid var(--line);border-radius:9px;
  background:var(--card);cursor:pointer;transition:border-color .18s;
}
.nav-toggle:hover{border-color:var(--primary)}
.nav-toggle span{display:block;height:2px;width:100%;background:var(--ink);border-radius:2px;transition:transform .22s,opacity .22s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-menu{
  display:none;position:absolute;top:100%;left:0;right:0;z-index:99;
  flex-direction:column;gap:2px;padding:10px 20px 20px;
  background:var(--bg);border-bottom:1px solid var(--line);box-shadow:var(--am-shadow);
}
.mobile-menu.open{display:flex}
.mobile-menu a{padding:12px 14px;border-radius:9px;color:var(--ink-2);font-weight:600;font-size:15px;transition:background .15s,color .15s}
.mobile-menu a:hover,.mobile-menu a:focus-visible{background:var(--primary-soft);color:var(--primary)}
.mobile-menu .btn-ghost{margin-top:10px;justify-content:center;color:var(--ink)}

/* ---- BUTTONS ---- */
.btn-primary,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  min-height:42px;padding:10px 18px;border-radius:var(--radius);
  font-size:14px;font-weight:700;font-family:var(--body);
  transition:transform .16s,box-shadow .16s,background .16s,border-color .16s;
  cursor:pointer;border:none;
}
.btn-primary{color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-strong));box-shadow:0 4px 14px color-mix(in srgb,var(--primary) 32%,transparent)}
.btn-primary:hover{box-shadow:0 10px 26px -4px color-mix(in srgb,var(--primary) 45%,transparent);transform:translateY(-2px)}
.btn-primary:active{transform:scale(.97) translateY(0);box-shadow:0 4px 12px color-mix(in srgb,var(--primary) 30%,transparent)}
.btn-ghost{color:var(--ink);background:var(--card);border:1px solid var(--line);box-shadow:var(--am-shadow)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);box-shadow:var(--am-shadow-hover)}
.btn-ghost:active{transform:scale(.97)}
.btn-primary.lg,.btn-ghost.lg{min-height:50px;padding:13px 24px;font-size:15px;border-radius:calc(var(--radius) + 2px)}

/* ---- HERO (split layout) ---- */
/* 流式间距/字号：单一 clamp 公式贯穿 320-1600px（锚点 320→min、1600→max），
   断点内不再覆盖这些属性 —— 旧版“桌面公式 + 断点覆盖公式”在 760px 边界不衔接，
   导致 hero-title 820→760 反向变大等跳变（圆桌 v3 实锤）。 */
.hero{padding:clamp(56px,50px + 1.875vw,80px) 0 clamp(44px,40px + 1.25vw,60px);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(32px,4vw,56px);align-items:center}
.hero-left{max-width:520px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 13px;margin-bottom:22px;
  border:1px solid var(--line);border-radius:999px;background:var(--card);
  color:var(--ink-2);font-family:var(--mono);font-size:11px;font-weight:500;
  box-shadow:var(--am-shadow);
}
.dot{width:7px;height:7px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 3px color-mix(in srgb,var(--mint) 18%,transparent);animation:pulse 2.4s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}
.hero-title{
  font-family:var(--display);font-size:clamp(32px,25.5px + 2.0313vw,58px);line-height:1.06;
  letter-spacing:-.045em;font-weight:700;margin-bottom:18px;
}
.accent{color:var(--primary)}
.hero-sub{color:var(--ink-2);font-size:clamp(15px,1.6vw,17px);line-height:1.65;margin-bottom:28px}
.hero-sub strong{color:var(--ink);font-weight:700}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;color:var(--ink-3);font-family:var(--mono);font-size:11px}
.hero-meta span+span::before{content:'·';margin-right:10px;color:var(--line)}

/* ---- TERMINAL / API DEMO ---- */
.terminal{
  position:relative;border-radius:16px;overflow:hidden;
  border:1px solid var(--code-line);background:var(--code-bg);
  box-shadow:0 24px 60px -20px rgba(0,0,0,.4);
  transition:transform .22s,box-shadow .22s;
}
.terminal:hover{transform:translateY(-3px);box-shadow:0 32px 70px -22px rgba(0,0,0,.5)}
.terminal-head{
  display:flex;align-items:center;gap:7px;padding:13px 18px;
  border-bottom:1px solid var(--code-line);background:var(--code-head);
}
.t-dot{width:10px;height:10px;border-radius:50%}
.t-dot-r{background:#f97066}.t-dot-y{background:#fdb022}.t-dot-g{background:#32d583}
.terminal-title{margin-left:auto;color:#667085;font-family:var(--mono);font-size:10px;letter-spacing:.03em}
.terminal-example{
  padding:2px 8px;border:1px solid var(--code-line);border-radius:20px;
  color:#98a2b3;font-family:var(--mono);font-size:9px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;
}
.terminal-tabs{display:flex;gap:0;border-bottom:1px solid var(--code-line)}
.terminal-tab{
  padding:9px 18px;font-family:var(--mono);font-size:11px;font-weight:600;
  color:#667085;cursor:pointer;border-bottom:2px solid transparent;
  transition:color .15s,border-color .15s;background:none;border-top:none;border-left:none;border-right:none;
}
.terminal-tab:hover{color:#c8cdd8}
.terminal-tab.active{color:#e7eaf3;border-bottom-color:var(--primary)}
.terminal-body{padding:22px 24px;min-height:260px;position:relative}
.terminal-body pre{
  font-family:var(--mono);font-size:12.5px;line-height:1.85;color:#c8cdd8;
  white-space:pre-wrap;word-break:break-all;margin:0;
}
.terminal-body .t-comment{color:#5b6577;font-style:italic}
.terminal-body .t-key{color:#7ee3c0}
.terminal-body .t-str{color:#a5d6ff}
.terminal-body .t-kw{color:#c4b5fd}
.terminal-body .t-num{color:#fbbf24}
.terminal-body .t-fn{color:#7dd3fc}
.terminal-cursor{display:inline-block;width:8px;height:16px;background:var(--primary);border-radius:2px;animation:blink 1.1s step-end infinite;vertical-align:text-bottom;margin-left:2px}
@keyframes blink{0%,100%{opacity:1}50%{opacity:0}}
.terminal-status{
  display:flex;align-items:center;gap:8px;padding:10px 18px;
  border-top:1px solid var(--code-line);font-family:var(--mono);font-size:10px;color:#667085;
}
.status-dot{width:6px;height:6px;border-radius:50%;background:var(--mint);animation:pulse 2s infinite}

/* ---- SECTIONS SHARED ---- */
.models,.pricing,.why{padding:clamp(68px,61px + 2.1875vw,96px) 0}
.section-title{
  font-family:var(--display);margin-bottom:14px;text-align:center;
  font-size:clamp(30px,25.5px + 1.4063vw,48px);line-height:1.1;letter-spacing:-.04em;font-weight:700;
}
.section-sub{max-width:640px;margin:0 auto 52px;text-align:center;color:var(--ink-2);font-size:15px;line-height:1.7}

/* ---- CARDS (shared hairline + hover) ---- */
.card{
  position:relative;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--card);box-shadow:var(--am-shadow);
  transition:transform .25s cubic-bezier(.16,1,.3,1),box-shadow .25s,border-color .25s,background .25s;
}
.card::before{
  content:'';position:absolute;top:0;left:12%;right:12%;height:1px;
  background:linear-gradient(90deg,transparent,var(--am-hair),transparent);
  border-radius:1px;pointer-events:none;
}
.card:hover{
  transform:translateY(-5px);
  border-color:color-mix(in srgb,var(--primary) 38%,var(--line));
  box-shadow:var(--am-shadow-hover);
  background:linear-gradient(160deg,color-mix(in srgb,var(--primary) 3%,var(--card)),var(--card));
}

/* ---- MODELS ---- */
/* auto-fit 连续降列（3→2→1）；断点内禁止再覆盖列数 —— 旧版 980px 强制 1fr×560px 窄条是跳变根因 */
.model-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr));gap:clamp(16px,1.6vw,20px)}
.model-card{padding:28px;position:relative}
.model-card.highlight{border-color:var(--primary);background:linear-gradient(160deg,color-mix(in srgb,var(--primary) 6%,var(--card)),var(--card))}
.model-card.highlight::after{
  content:'';position:absolute;inset:-1px;border-radius:var(--radius);
  background:linear-gradient(160deg,color-mix(in srgb,var(--primary) 20%,transparent),transparent 60%);
  z-index:-1;pointer-events:none;
}
.ribbon{
  position:absolute;top:16px;right:16px;padding:4px 10px;border-radius:999px;
  background:var(--primary);color:#fff;font-family:var(--mono);font-size:10px;font-weight:700;letter-spacing:.03em;
}
.model-head{display:flex;align-items:center;gap:13px;margin-bottom:16px}
.model-icon{display:flex;width:46px;height:46px;flex:0 0 auto;align-items:center;justify-content:center;border-radius:11px;overflow:hidden;background:var(--code-bg)}
.model-icon img{max-width:100%;max-height:100%;object-fit:contain}
.brand-kimi{width:auto;background:none;overflow:visible}
.brand-kimi img{width:80px;height:auto}
.model-card h3{font-family:var(--display);font-size:17px;font-weight:700;letter-spacing:-.02em}
.model-vendor{color:var(--ink-3);font-family:var(--mono);font-size:10px;text-transform:uppercase;letter-spacing:.06em}
.model-desc{margin-bottom:18px;color:var(--ink-2);font-size:13px;line-height:1.7;min-height:66px}
.model-specs{display:flex;flex-direction:column;gap:0;padding-top:14px;border-top:1px solid var(--line)}
.model-specs>div{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:6px 0;border-bottom:1px dashed var(--line);font-size:12px}
.model-specs>div:last-child{border-bottom:0}
.model-specs span{color:var(--ink-3)}
.model-specs strong{font-family:var(--mono);font-size:11px;font-weight:600}
.model-id{
  display:inline-block;margin-top:16px;padding:5px 10px;
  border:1px solid var(--line);border-radius:6px;background:var(--bg);
  color:var(--ink-2);font-family:var(--mono);font-size:11px;cursor:pointer;
  transition:border-color .15s,color .15s;
}
.model-id:hover{border-color:var(--primary);color:var(--primary)}
.disclaimer{margin-top:28px;text-align:center;color:var(--ink-3);font-family:var(--mono);font-size:11px}

/* ---- PRICING ---- */
.pricing{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--primary-soft) 40%,var(--bg))}
.price-table-wrap{
  max-width:900px;margin:0 auto 36px;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--radius);background:var(--card);box-shadow:var(--am-shadow);
}
.price-table{width:100%;border-collapse:collapse;font-size:14px}
.price-table th,.price-table td{padding:16px 22px;text-align:left;border-bottom:1px solid var(--line)}
.price-table tr:last-child td{border-bottom:0}
.price-table th{
  color:var(--ink-3);background:var(--bg);font-family:var(--mono);font-size:11px;
  font-weight:700;letter-spacing:.03em;text-transform:uppercase;
}
.price-table th span,.price-table th small{display:block}
.price-table th small{margin-top:2px;color:var(--ink-3);font-size:9px;font-weight:500;letter-spacing:0;text-transform:none}
.price-table tbody tr{transition:background .15s}
.price-table tbody tr:hover{background:color-mix(in srgb,var(--primary) 5%,var(--card))}
.price-model{font-family:var(--display);font-size:15px;font-weight:700;letter-spacing:-.01em}
.price-value{font-family:var(--mono);font-size:14px;font-weight:700;white-space:nowrap}
.topup-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,200px),1fr));gap:14px}
.topup-card{padding:20px 18px}
a.topup-card{display:block;text-decoration:none;color:inherit;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease}
a.topup-card:hover{transform:translateY(-2px)}
.topup-card h3{margin-bottom:3px;color:var(--primary);font-family:var(--mono);font-size:22px;font-weight:700}
.topup-card p{color:var(--ink-2);font-size:13px;margin-bottom:4px}
.topup-card span{color:var(--ink-3);font-family:var(--mono);font-size:10px;text-transform:uppercase;letter-spacing:.05em}

/* ---- WHY ---- */
.why-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr));gap:clamp(12px,1.4vw,18px);max-width:1020px;margin:0 auto}
.why-item{padding:24px;display:grid;grid-template-columns:38px 1fr;align-content:start;column-gap:14px;row-gap:6px}
.why-num{color:var(--primary);font-family:var(--mono);font-size:12px;font-weight:700}
.why-item h3,.why-item p{grid-column:2;min-width:0}
.why-item h3{font-family:var(--display);font-size:16px;font-weight:700;letter-spacing:-.02em}
.why-item p{color:var(--ink-2);font-size:14px;line-height:1.65}

/* ---- FOOTER ---- */
.footer{position:relative;padding:72px 0 28px;background:var(--code-bg);color:#c8cdd8;transition:background .3s}
.footer::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,color-mix(in srgb,var(--primary) 40%,transparent),transparent)}
.footer-inner{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:clamp(24px,3vw,40px);margin-bottom:44px}
.footer .logo{color:#fff;margin-bottom:14px}
.foot-tag{max-width:260px;color:#8a93a6;font-size:14px;line-height:1.7}
.foot-col h5{margin-bottom:14px;color:#6b7488;font-family:var(--mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase}
.foot-col a{display:block;padding:5px 0;color:#c8cdd8;font-size:14px;transition:color .15s,transform .15s}
.foot-col a:hover{color:var(--primary);transform:translateX(3px)}
.foot-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;padding-top:24px;border-top:1px solid #232a3a;color:#6b7488;font-family:var(--mono);font-size:10px}

/* ---- SCROLL REVEAL ---- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s cubic-bezier(.16,1,.3,1),transform .6s cubic-bezier(.16,1,.3,1)}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ---- RESPONSIVE ----
   断点只管“拓扑结构”（是否分栏/是否汉堡）；字号/间距/列数由上方 clamp/auto-fit 贯穿接管。
   对标 stance.com 三级形态：全菜单(>768) → 汉堡+核心CTA(≤768) → 紧凑纵排(≤480)。 */
@media(max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-left{max-width:100%}
  /* 单列后终端窗口 680px 居中（圆桌裁决：拉满显空，窄条显寒酸） */
  .hero-right{width:100%;max-width:680px;margin:0 auto}
  .model-desc{min-height:0}
}
@media(max-width:900px){
  .footer-inner{grid-template-columns:1fr 1fr}
  /* 中屏价格表收紧，防 641-900 区间挡不住 4 列表头 */
  .price-table{font-size:13px}
  .price-table th,.price-table td{padding:12px 14px}
  .price-value{font-size:12px}
  /* 4 卡直接 4→2，跳过 3 列避 3+1 孤卡 */
  .topup-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  /* 导航链接隐藏与汉堡出现必须同一断点 —— 旧版 760/640 分家造成 641-760px 导航死区(P0) */
  .nav-links{gap:12px}
  .nav-links a:not(.btn-primary):not(.btn-ghost):not(.theme-toggle):not(.lang-switch){display:none}
  .nav-toggle{display:inline-flex}
  .terminal-body{min-height:200px;padding:16px 18px}
}
@media(max-width:640px){
  .nav-links{gap:8px}
  .nav-links .btn-ghost{display:none}
  .footer-inner{grid-template-columns:1fr;gap:24px}
  .price-table-wrap{overflow:visible;background:transparent;border:0;box-shadow:none}
  .price-table,.price-table tbody,.price-table tr,.price-table td{display:block;width:100%!important}
  .price-table thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%)}
  .price-table tbody{display:grid;gap:10px}
  .price-table tr{padding:16px;border:1px solid var(--line);border-radius:var(--radius);background:var(--card);box-shadow:var(--am-shadow)}
  .price-table td{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:7px 0;border:0}
  .price-table td::before{content:attr(data-label);color:var(--ink-3);font-family:var(--mono);font-size:10px;font-weight:700;letter-spacing:.03em;text-transform:uppercase}
  .price-table td:first-child{padding:0 0 8px}
  .price-table td:first-child::before{display:none}
}
@media(max-width:520px){
  .topup-grid{grid-template-columns:1fr}
}
@media(max-width:480px){
  .logo{font-size:16px}
  .hero-cta{flex-direction:column}
  .hero-cta a{width:100%}
  .terminal-body pre{font-size:11px}
}
/* 极窄屏防御（折叠屏 344 / 老机 320） */
@media(max-width:400px){
  .footer{padding:48px 0 20px}
  .footer-inner{margin-bottom:28px}
  .foot-tag{max-width:100%}
  .terminal-tab{padding:9px 12px}
}
@media(max-width:360px){
  /* 320px 实测 nav 溢出：只留 logo mark，收紧 CTA 与间距（Stance 同款 icon 化策略） */
  .nav-inner{gap:8px}
  .nav-links{gap:6px}
  .logo-text{display:none}
  .nav-links .btn-primary{padding:8px 11px;font-size:12px}
  .lang-switch{padding:4px 5px!important}
}
@media(max-width:340px){
  .foot-bottom{flex-direction:column;gap:4px;text-align:center}
}

/* ============ USER MENU (logged-in state) ============ */
.user-menu{position:relative;display:inline-flex;align-items:center}
.user-avatar-btn{appearance:none;-webkit-appearance:none;-moz-appearance:none;display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border:none;border-radius:50%;background:transparent;cursor:pointer;transition:transform .15s,box-shadow .15s;padding:0;flex:0 0 auto;overflow:hidden}
.user-avatar-btn:hover{transform:scale(1.1)}
.user-avatar-btn:active{transform:scale(.93)}
.user-avatar-circle{width:36px;height:36px;border-radius:50%;background-color:var(--primary);background-image:linear-gradient(135deg,var(--primary),color-mix(in srgb,var(--primary) 60%,#a855f7));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;font-family:var(--display);box-shadow:0 3px 12px -2px color-mix(in srgb,var(--primary) 45%,transparent)}
.user-dropdown{position:absolute;top:calc(100% + 12px);right:0;width:260px;max-width:calc(100vw - 40px);padding:0;border:1px solid var(--line);border-radius:18px;background:var(--card);box-shadow:0 20px 60px -15px rgba(0,0,0,.22),0 4px 16px -4px rgba(0,0,0,.08);opacity:0;visibility:hidden;transform-origin:top right;transform:translateY(-8px) scale(.95);transition:opacity .2s cubic-bezier(.16,1,.3,1),transform .2s cubic-bezier(.16,1,.3,1),visibility .2s;z-index:999;overflow:hidden}
.user-dropdown.open{opacity:1;visibility:visible;transform:translateY(0) scale(1)}
.ud-header{padding:20px 18px 16px;display:flex;align-items:center;gap:14px;background:color-mix(in srgb,var(--primary) 4%,var(--card));border-bottom:1px solid var(--line)}
.ud-header .ud-avatar{width:44px;height:44px;border-radius:50%;background-color:var(--primary);background-image:linear-gradient(135deg,var(--primary),color-mix(in srgb,var(--primary) 60%,#a855f7));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:18px;font-family:var(--display);flex-shrink:0;box-shadow:0 4px 14px -3px color-mix(in srgb,var(--primary) 50%,transparent)}
.ud-header .ud-info{display:flex;flex-direction:column;gap:3px;min-width:0}
.ud-header strong{font-size:15px;font-weight:700;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;letter-spacing:-.02em}
.ud-header span{font-size:11px;color:var(--ink-3);white-space:nowrap;display:inline-flex;align-items:center;gap:4px}
.ud-body{padding:8px 10px 10px}
.ud-item{display:flex;align-items:center;gap:11px;padding:11px 14px;border-radius:11px;font-size:13.5px;font-weight:550;color:var(--ink);text-decoration:none;transition:background .14s,transform .12s,box-shadow .14s}
.ud-item:hover{background:color-mix(in srgb,var(--primary) 8%,var(--card));transform:translateX(3px);box-shadow:0 2px 8px -4px color-mix(in srgb,var(--primary) 25%,transparent)}
.user-dropdown .ud-item svg{width:18px!important;height:18px!important;opacity:.65;flex-shrink:0;transition:opacity .14s}
.ud-item:hover svg{opacity:1}
.ud-item .ud-icon{width:18px;height:18px;opacity:.65;flex-shrink:0}
.ud-danger{color:var(--coral,#e8554a);font-weight:600}
.ud-danger:hover{background:color-mix(in srgb,var(--coral,#e8554a) 10%,transparent);box-shadow:0 2px 8px -4px color-mix(in srgb,var(--coral,#e8554a) 30%,transparent)}
.ud-sep{height:1px;background:var(--line);margin:6px 14px}