/* 视觉参照 getgpt.pro：浅灰蓝底 + 靛蓝到紫的渐变主色 + 大圆角白卡片 + 柔和阴影
   圆角规则：卡片 16px，主按钮 16px，小按钮 / 输入框 12px，徽章全圆角 */
/* Inter 变量字体（自托管，仅 Latin；中文回落到苹方/系统，与参考站一致） */
@font-face {
  font-family: 'Inter Variable';
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url('/vendor/inter/inter-latin-wght-normal.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
:root {
  --bg: #f8fafc;
  --band: #ffffff;
  --surface: #ffffff;
  --surface-2: #f1f5f9;
  --ink: #0f172a;
  --ink-2: #334155;
  --muted: #64748b;
  --line: #e2e8f0;
  --primary: #4f46e5;
  --primary-2: #7c3aed;
  --primary-ink: #ffffff;
  --primary-soft: #eef2ff;
  --primary-line: #e0e7ff;
  --grad: linear-gradient(90deg, #4f46e5, #7c3aed);
  --ok: #059669;
  --ok-soft: #ecfdf5;
  --ok-btn: linear-gradient(90deg, #3a9d6e, #2f8a5f);
  --warn: #b45309;
  --warn-soft: #fffbeb;
  --err: #dc2626;
  --err-soft: #fef2f2;
  --star: #f59e0b;
  --footer: #0f172a;
  --shadow-sm: 0 1px 2px rgb(15 23 42 / .04), 0 1px 3px rgb(15 23 42 / .04);
  --shadow: 0 1px 3px rgb(15 23 42 / .04), 0 12px 32px -14px rgb(15 23 42 / .14);
  --shadow-cta: 0 10px 25px -6px rgb(79 70 229 / .45);
  --r-card: 16px;
  --r-btn: 16px;
  --r-ctl: 12px;
  --font: 'Inter Variable', "PingFang SC", -apple-system, BlinkMacSystemFont, "HarmonyOS Sans SC", "MiSans", "Microsoft YaHei", "Segoe UI", sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --ease: cubic-bezier(.16, 1, .3, 1);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1020;
    --band: #0f1629;
    --surface: #131b30;
    --surface-2: #1b2440;
    --ink: #e8ecf5;
    --ink-2: #c3cad9;
    --muted: #8f9ab0;
    --line: #243050;
    --primary: #818cf8;
    --primary-2: #a78bfa;
    --primary-ink: #ffffff;
    --primary-soft: #1e2250;
    --primary-line: #2d3470;
    --grad: linear-gradient(90deg, #5b54ea, #8b5cf6);
    --ok: #34d399;
    --ok-soft: #0f2a22;
    --warn: #fbbf24;
    --warn-soft: #2a2110;
    --err: #f87171;
    --err-soft: #2d1414;
    --footer: #070b16;
    --shadow-sm: 0 1px 2px rgb(0 0 0 / .3);
    --shadow: 0 1px 3px rgb(0 0 0 / .3), 0 12px 32px -14px rgb(0 0 0 / .5);
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0; font-family: var(--font); font-size: 16px; line-height: 1.65; color: var(--ink);
  background: var(--bg); -webkit-font-smoothing: antialiased; font-variant-numeric: tabular-nums;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 8px; }
h1, h2, h3, h4 { margin: 0; line-height: 1.25; letter-spacing: -.015em; }
p { margin: 0; }
.ti { font-size: 1.15em; line-height: 1; vertical-align: -.12em; }
.wrap { width: 100%; max-width: 1152px; margin: 0 auto; padding: 0 20px; }
.wrap-sm { max-width: 768px; }
.muted { color: var(--muted); }
.mono { font-family: var(--mono); }
.hidden { display: none !important; }
.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ---------- 顶栏 ---------- */
.nav { position: sticky; top: 0; z-index: 30; background: color-mix(in srgb, var(--band) 88%, transparent); backdrop-filter: saturate(180%) blur(14px); -webkit-backdrop-filter: saturate(180%) blur(14px); border-bottom: 1px solid transparent; transition: box-shadow .3s var(--ease), border-color .3s var(--ease); }
.nav.scrolled { border-bottom-color: var(--line); box-shadow: 0 4px 20px -12px rgb(15 23 42 / .2); }
.nav > .wrap { height: 68px; display: flex; align-items: center; gap: 24px; }
.brand { display: flex; align-items: center; gap: 10px; white-space: nowrap; }
.brand-mark { width: 38px; height: 38px; border-radius: 11px; display: block; box-shadow: 0 6px 14px -6px rgb(79 70 229 / .7); flex: none; }
.brand-text b { display: block; font-size: 17px; font-weight: 600; line-height: 1.2; }
.brand-text small { display: block; font-size: 11.5px; color: var(--muted); line-height: 1.2; }
.nav-links { display: flex; gap: 2px; margin: 0 auto; align-items: center; }
.nav-links > a, .nav-drop > button { display: inline-flex; align-items: center; gap: 4px; padding: 8px 12px; border-radius: 10px; color: var(--ink-2); font-size: 14.5px; font-weight: 500; white-space: nowrap; border: 0; background: transparent; cursor: pointer; transition: background .2s, color .2s; }
.nav-links > a:hover, .nav-links > a[aria-current="page"], .nav-drop > button:hover { background: var(--surface-2); color: var(--ink); }
.nav-drop { position: relative; }
.nav-drop .menu { position: absolute; top: calc(100% + 6px); left: 50%; transform: translate(-50%, 6px); min-width: 250px; padding: 8px; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); opacity: 0; visibility: hidden; transition: opacity .2s var(--ease), transform .2s var(--ease), visibility .2s; }
.nav-drop:hover .menu, .nav-drop:focus-within .menu { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.nav-drop .menu a { display: flex; gap: 12px; padding: 10px 12px; border-radius: 10px; }
.nav-drop .menu a:hover { background: var(--surface-2); }
.nav-drop .menu .ti { color: var(--primary); font-size: 20px; margin-top: 2px; }
.nav-drop .menu b { display: block; font-size: 14px; font-weight: 600; }
.nav-drop .menu small { display: block; font-size: 12.5px; color: var(--muted); }
.nav-right { display: flex; gap: 6px; align-items: center; }
.nav-right a { display: inline-flex; align-items: center; gap: 6px; padding: 8px 12px; border-radius: 10px; font-size: 14.5px; color: var(--ink-2); font-weight: 500; white-space: nowrap; }
.nav-right a:hover { background: var(--surface-2); color: var(--ink); }
.nav-tip { font-size: 11.5px; font-weight: 600; line-height: 1; padding: 3px 7px; border-radius: 999px; background: var(--primary-soft); color: var(--primary); }
.nav-links > .nav-m-only { display: none; }
.nav-shade { display: none; position: fixed; inset: 0; z-index: 29; background: rgb(15 23 42 / .35); -webkit-tap-highlight-color: transparent; }
html.menu-lock, html.menu-lock body { overflow: hidden; overscroll-behavior: none; }
html.menu-lock .bookmark-pop { display: none; } /* 菜单打开时不让收藏弹窗盖住菜单 */
.nav-toggle { display: none; margin-left: auto; width: 44px; height: 44px; border: 1px solid var(--line); background: var(--surface); border-radius: 12px; cursor: pointer; font-size: 20px; }
@media (max-width: 900px) {
  .nav-toggle { display: grid; place-items: center; }
  .nav-links, .nav-right { display: none; }
  /* 菜单贴在导航栏正下方，最高到屏幕底部，内容多时菜单自己滚，不带动背后页面 */
  .nav.open .nav-links { display: flex; flex-direction: column; align-items: stretch; position: absolute; left: 0; right: 0; top: 100%; max-height: calc(100vh - var(--menu-top, 68px)); max-height: calc(100dvh - var(--menu-top, 68px)); overflow-y: auto; overscroll-behavior: contain; -webkit-overflow-scrolling: touch; background: var(--surface); border-bottom: 1px solid var(--line); padding: 8px 16px calc(16px + env(safe-area-inset-bottom)); box-shadow: var(--shadow); }
  .nav.open .nav-links > .nav-m-only { display: inline-flex; gap: 8px; border-top: 1px solid var(--line); margin-top: 6px; padding-top: 16px; }
  .nav.open .nav-links > .nav-m-only .ti { color: var(--primary); font-size: 18px; }
  .nav-shade.show { display: block; }
  .nav.open .nav-links > a, .nav.open .nav-drop > button { padding: 12px; width: 100%; justify-content: flex-start; }
  .nav.open .nav-drop .menu { position: static; transform: none; opacity: 1; visibility: visible; box-shadow: none; border: 0; padding: 0 0 0 8px; min-width: 0; }
}

/* ---------- 按钮 ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 0 20px; border-radius: var(--r-ctl); border: 1px solid transparent; font-weight: 600; font-size: 15px; white-space: nowrap; cursor: pointer; transition: transform .15s var(--ease), box-shadow .3s var(--ease), filter .2s, background .2s, border-color .2s; }
.btn:hover:not([disabled]) { transform: translateY(-1px); }
.btn:active { transform: translateY(1px) scale(.99); }
.btn[disabled] { opacity: .5; cursor: not-allowed; transform: none; filter: none; }
.btn-primary { background: var(--grad); color: var(--primary-ink); box-shadow: var(--shadow-cta); }
.btn-primary:hover:not([disabled]) { filter: brightness(1.08); box-shadow: 0 14px 30px -6px rgb(79 70 229 / .55); }
.btn-ok { background: var(--ok-btn); color: #fff; box-shadow: 0 10px 22px -8px rgb(47 138 95 / .6); }
.btn-dark { background: var(--ink); color: var(--bg); }
.btn-dark:hover:not([disabled]) { filter: brightness(1.15); }
.btn-ghost { background: var(--surface); border-color: var(--line); color: var(--ink); }
.btn-ghost:hover:not([disabled]) { border-color: var(--primary-line); background: var(--primary-soft); color: var(--primary); }
.btn-soft { background: var(--primary-soft); color: var(--primary); border-color: var(--primary-line); }
.btn-lg { min-height: 56px; padding: 0 44px; font-size: 16px; border-radius: var(--r-btn); }
.btn-md { min-height: 48px; padding: 0 24px; border-radius: 14px; }
.btn-sm { min-height: 36px; padding: 0 12px; font-size: 13.5px; border-radius: 10px; }
.btn-block { width: 100%; }
.spin { animation: spin 1s linear infinite; display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- 徽章 / 标签 ---------- */
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 5px 14px; border-radius: 999px; background: var(--primary-soft); border: 1px solid var(--primary-line); color: var(--primary); font-size: 12.5px; font-weight: 600; }
.tag { display: inline-flex; align-items: center; gap: 4px; padding: 2px 10px; border-radius: 999px; font-size: 12.5px; font-weight: 600; background: var(--surface-2); color: var(--ink-2); white-space: nowrap; }
.tag-accent { background: var(--primary-soft); color: var(--primary); }
.tag-grad { background: var(--grad); color: #fff; }
.tag-ok { background: var(--ok-soft); color: var(--ok); }
.tag-warn { background: var(--warn-soft); color: var(--warn); }
.tag-err { background: var(--err-soft); color: var(--err); }
.chip { display: inline-flex; padding: 3px 10px; border-radius: 999px; font-size: 12.5px; background: var(--primary-soft); color: var(--primary); }

/* ---------- 表单 ---------- */
.field { display: grid; gap: 6px; }
.field label { font-size: 14px; font-weight: 600; color: var(--ink-2); }
.field .help { font-size: 13px; color: var(--muted); }
.field .err-text { font-size: 13px; color: var(--err); }
.email-ac { position: relative; }
.ac-list { position: absolute; top: calc(100% + 4px); left: 0; right: 0; z-index: 30; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-ctl); box-shadow: var(--shadow-md, 0 8px 24px rgba(0,0,0,.12)); overflow: hidden; max-height: 260px; overflow-y: auto; }
.ac-item { padding: 10px 15px; font-size: 14px; color: var(--muted); cursor: pointer; display: flex; }
.ac-item b { color: var(--ink); font-weight: 600; }
.ac-item.active, .ac-item:hover { background: var(--surface-2, rgba(79,70,229,.08)); }
.input, textarea.input, select.input { width: 100%; min-height: 48px; padding: 11px 15px; border-radius: var(--r-ctl); border: 1px solid var(--line); background: var(--surface); color: var(--ink); transition: border-color .2s, box-shadow .2s; }
textarea.input { min-height: 120px; resize: vertical; line-height: 1.5; }
.input::placeholder { color: #94a3b8; }
.input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 4px var(--primary-soft); }
.input.invalid { border-color: var(--err); }

/* ---------- 卡片 / 提示 ---------- */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-card); box-shadow: var(--shadow-sm); }
.pad { padding: 28px; }
@media (max-width: 560px) { .pad { padding: 20px; } }
.alert { display: flex; gap: 10px; padding: 12px 14px; border-radius: var(--r-ctl); font-size: 14px; line-height: 1.55; }
.alert .ti { margin-top: 2px; flex: none; }
.alert-info { background: var(--primary-soft); color: var(--primary); }
.alert-warn { background: var(--warn-soft); color: var(--warn); }
.alert-err { background: var(--err-soft); color: var(--err); }
.alert-ok { background: var(--ok-soft); color: var(--ok); }
.notice-bar { background: var(--grad); color: #fff; font-size: 13.5px; }
.notice-bar .wrap { padding-top: 8px; padding-bottom: 8px; display: flex; gap: 10px; align-items: center; justify-content: center; flex-wrap: wrap; }
.notice-bar .notice-cta { color: #fff; font-weight: 600; text-decoration: none; border: 1px solid rgba(255,255,255,.55); border-radius: 999px; padding: 2px 12px; white-space: nowrap; display: inline-flex; align-items: center; gap: 4px; }
.notice-bar .notice-cta:hover { background: rgba(255,255,255,.15); }
/* 手机：图标贴着文字左对齐，文字自动换行，「查看详情」靠右 */
@media (max-width: 720px) {
  .notice-bar { font-size: 13px; }
  .notice-bar .wrap { justify-content: flex-start; align-items: flex-start; flex-wrap: nowrap; gap: 8px; padding-top: 9px; padding-bottom: 9px; line-height: 1.55; }
  .notice-bar .wrap > .ti { flex: none; margin-top: 2px; }
  .notice-bar .wrap > span { flex: 1 1 0; min-width: 0; }
  .notice-bar .notice-cta { flex: none; align-self: center; padding: 2px 10px; font-size: 12.5px; }
}
.entries { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; margin-top: 24px; }
@media (max-width: 640px) { .entries { grid-template-columns: 1fr; } }
.entry { display: flex; align-items: center; gap: 14px; padding: 16px 18px; text-decoration: none; color: inherit; transition: border-color .2s, box-shadow .2s, transform .2s; }
.entry:hover { border-color: var(--primary-line); box-shadow: var(--shadow); transform: translateY(-2px); }
.entry .entry-t { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.entry .entry-t b { font-size: 15.5px; }
.entry .entry-t small { color: var(--muted); font-size: 13px; }
.entry .entry-arw { color: var(--muted); flex: none; }

/* ---------- 区块 ---------- */
.band { background: var(--band); }
.section { padding-top: 88px; padding-bottom: 88px; }
.sec-head { text-align: center; max-width: 720px; margin: 0 auto 48px; }
.sec-head h2 { font-size: clamp(28px, 3.6vw, 38px); font-weight: 700; margin-top: 16px; }
.sec-head p { margin-top: 12px; color: var(--muted); font-size: 16.5px; }
@media (max-width: 720px) { .section { padding-top: 60px; padding-bottom: 60px; } .sec-head { margin-bottom: 32px; } }

/* ---------- 首页 Hero ---------- */
.hero { position: relative; padding: 88px 0 72px; text-align: center; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: -30% -10% auto; height: 620px; background: radial-gradient(closest-side, rgb(99 102 241 / .10), transparent 70%); pointer-events: none; }
.hero .wrap { position: relative; }
.hero h1 { font-size: clamp(40px, 6.6vw, 76px); font-weight: 700; letter-spacing: -.035em; line-height: 1.08; }
.rotator { position: relative; height: clamp(52px, 7vw, 76px); margin: 22px auto 10px; overflow: hidden; }
.rotator span { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-size: clamp(26px, 3.8vw, 44px); font-weight: 600; opacity: 0; transform: translateY(100%); transition: opacity .45s var(--ease), transform .6s var(--ease); }
.rotator span.on { opacity: 1; transform: none; }
.rotator span.off { opacity: 0; transform: translateY(-100%); }
.hero .lead { font-size: clamp(16px, 1.6vw, 19px); color: var(--muted); max-width: 640px; margin: 0 auto 40px; }
.hero .cta-col { display: flex; flex-direction: column; align-items: center; gap: 16px; }
.pill-link { display: inline-flex; align-items: center; gap: 8px; padding: 5px 12px 5px 5px; border-radius: 999px; font-size: 13.5px; color: var(--ink-2); transition: background .2s; }
.pill-link:hover { background: var(--surface-2); }
.pill-link .tag { background: var(--primary-soft); color: var(--primary); }
.proof { display: flex; flex-direction: column; align-items: center; gap: 4px; font-size: 14px; color: var(--ink-2); }
.proof .dot { width: 7px; height: 7px; border-radius: 999px; background: var(--ok); display: inline-block; margin-right: 6px; }
.proof small { color: var(--muted); font-size: 12.5px; }
.trust-row { margin: 44px auto 0; display: flex; justify-content: center; gap: 0; max-width: 820px; }
.trust-item { display: flex; gap: 12px; align-items: center; padding: 0 28px; text-align: left; }
.trust-item + .trust-item { border-left: 1px solid var(--line); }
.ibox { width: 38px; height: 38px; flex: none; border-radius: 11px; display: grid; place-items: center; background: var(--primary-soft); color: var(--primary); font-size: 19px; }
.trust-item b { display: block; font-size: 14px; }
.trust-item span { display: block; font-size: 12.5px; color: var(--muted); }
.scroll-hint { margin-top: 44px; }
@media (max-width: 760px) {
  .hero { padding: 56px 0 48px; }
  .trust-row { flex-direction: column; gap: 14px; align-items: flex-start; max-width: 280px; }
  .trust-item { padding: 0; }
  .trust-item + .trust-item { border-left: 0; }
  .hero .btn-lg { width: 100%; max-width: 340px; }
}

/* ---------- 核心优势 ---------- */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }
.feature { padding: 26px 24px; transition: transform .3s var(--ease), box-shadow .3s var(--ease); }
.feature:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.feature .ibox { width: 44px; height: 44px; border-radius: 12px; font-size: 21px; margin-bottom: 18px; }
.feature h3 { font-size: 17px; font-weight: 600; }
.feature p { margin-top: 8px; font-size: 14.5px; color: var(--muted); }
.ib-green { background: #ecfdf5; color: #059669; }
.ib-indigo { background: #eef2ff; color: #4f46e5; }
.ib-violet { background: #f5f3ff; color: #7c3aed; }
.ib-blue { background: #eff6ff; color: #2563eb; }
.ib-amber { background: #fffbeb; color: #d97706; }
@media (prefers-color-scheme: dark) { .ib-green, .ib-indigo, .ib-violet, .ib-blue, .ib-amber { background: var(--surface-2); } }
/* 平板：两列，单数时最后一张居中，不落单 */
@media (min-width: 541px) and (max-width: 960px) {
  .features { grid-template-columns: repeat(4, 1fr); }
  .features > * { grid-column: span 2; }
  .features > :last-child:nth-child(odd) { grid-column: 2 / span 2; }
}
@media (max-width: 540px) { .features { grid-template-columns: 1fr; } }

/* ---------- 流程 ---------- */
.flow-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; max-width: 1000px; margin: 0 auto; }
.flow-steps { display: grid; gap: 12px; }
.flow-step { display: flex; gap: 18px; padding: 20px 22px; border-radius: var(--r-card); border: 1px solid transparent; cursor: pointer; transition: background .4s var(--ease), border-color .4s var(--ease); }
.flow-step .num { width: 40px; height: 40px; flex: none; border-radius: 999px; border: 2px solid var(--line); display: grid; place-items: center; font-weight: 700; color: var(--muted); transition: all .4s var(--ease); background: var(--surface); }
.flow-step h3 { font-size: 21px; font-weight: 600; }
.flow-step p { margin-top: 4px; color: var(--ink-2); font-size: 15px; }
.flow-step.on { background: var(--primary-soft); border-color: var(--primary-line); }
.flow-step.on .num { background: var(--grad); color: #fff; border-color: transparent; box-shadow: 0 8px 20px -6px rgb(79 70 229 / .6); }
.browser { background: linear-gradient(135deg, var(--primary-soft), var(--surface-2)); border-radius: 20px; padding: 28px; }
.browser-win { background: var(--surface); border-radius: 14px; box-shadow: var(--shadow); overflow: hidden; max-width: 380px; margin: 0 auto; }
.browser-bar { display: flex; align-items: center; gap: 6px; padding: 10px 14px; border-bottom: 1px solid var(--line); }
.browser-bar i { width: 10px; height: 10px; border-radius: 999px; display: block; }
.browser-bar .url { margin-left: 10px; flex: 1; font-size: 12px; color: var(--muted); background: var(--surface-2); border-radius: 8px; padding: 3px 10px; display: flex; gap: 6px; align-items: center; }
.browser-body { padding: 26px 22px 22px; text-align: center; }
.browser-body .okc { width: 48px; height: 48px; margin: 0 auto 14px; border-radius: 999px; background: #3a9d6e; color: #fff; display: grid; place-items: center; font-size: 26px; }
.browser-body h4 { font-size: 17px; }
.browser-body .sub { font-size: 13px; color: var(--primary); margin-top: 4px; }
.browser-body .keybox { margin: 18px 0 16px; border: 1px solid var(--line); border-radius: 12px; padding: 12px; text-align: left; }
.browser-body .keybox small { font-size: 11.5px; color: var(--muted); }
.browser-body .keyrow { margin-top: 8px; display: flex; justify-content: space-between; align-items: center; gap: 8px; border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; font-family: var(--mono); font-size: 13.5px; font-weight: 600; letter-spacing: .04em; }
.browser-body .keyrow span { font-family: var(--font); font-size: 12px; font-weight: 500; letter-spacing: 0; border: 1px solid var(--line); border-radius: 8px; padding: 2px 8px; }
@media (max-width: 860px) { .flow-grid { grid-template-columns: 1fr; gap: 28px; } }

/* ---------- 用户评价 ---------- */
.rating { display: flex; justify-content: center; align-items: center; gap: 10px; margin-top: 12px; font-size: 14px; color: var(--muted); }
.stars { color: var(--star); letter-spacing: 2px; }
.marquee { overflow: hidden; mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent); padding: 6px 0 12px; }
.marquee-track { display: flex; gap: 20px; width: max-content; animation: marquee 60s linear infinite; }
.marquee:hover .marquee-track, .marquee:focus-within .marquee-track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }
.review { width: 320px; flex: none; padding: 22px; display: flex; flex-direction: column; gap: 14px; }
.review q { quotes: none; font-size: 14.5px; color: var(--ink-2); line-height: 1.7; display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden; }
.review .meta { display: flex; justify-content: space-between; font-size: 12.5px; color: var(--muted); }
.review .who { display: flex; align-items: center; gap: 10px; padding-top: 14px; border-top: 1px solid var(--line); }
.avatar { width: 36px; height: 36px; flex: none; border-radius: 999px; display: grid; place-items: center; color: #fff; font-weight: 600; font-size: 14px; }
.review .who b { display: block; font-size: 14px; }
.review .who small { display: block; font-size: 12px; color: var(--muted); }
.review .who .tag { margin-left: auto; }
.assure { display: flex; justify-content: center; gap: 0; margin-top: 36px; font-size: 13.5px; color: var(--ink-2); }
.assure span { display: inline-flex; align-items: center; gap: 6px; padding: 0 22px; }
.assure span + span { border-left: 1px solid var(--line); }
.assure .ti { color: var(--primary); }

/* ---------- FAQ ---------- */
.faq-search { position: relative; margin-bottom: 18px; }
.faq-search .ti { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); color: var(--muted); }
.faq-search .input { padding-left: 44px; border-radius: 14px; }
.faq-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.faq-tabs button { border: 1px solid var(--line); background: var(--surface); color: var(--ink-2); border-radius: 999px; padding: 7px 16px; font-size: 14px; font-weight: 500; cursor: pointer; min-height: 38px; transition: all .2s; }
.faq-tabs button[aria-pressed="true"] { background: var(--grad); color: #fff; border-color: transparent; box-shadow: 0 6px 14px -6px rgb(79 70 229 / .6); }
.faq-list { display: grid; gap: 12px; }
.faq-list details { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; transition: border-color .2s, box-shadow .2s; }
.faq-list details[open] { border-color: var(--primary-line); box-shadow: var(--shadow); }
.faq-list summary { list-style: none; cursor: pointer; padding: 18px 20px; font-weight: 600; font-size: 15.5px; display: flex; justify-content: space-between; gap: 16px; align-items: center; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary .ti { transition: transform .25s var(--ease); color: var(--muted); flex: none; }
.faq-list details[open] summary .ti { transform: rotate(180deg); color: var(--primary); }
.faq-list .ans { padding: 0 20px 18px; color: var(--ink-2); font-size: 15px; }
.faq-list .ans a { color: var(--primary); font-weight: 500; }
.faq-more { text-align: center; margin-top: 22px; color: var(--muted); font-size: 14px; }

/* ---------- FAQ 帮助中心（分类侧栏版） ---------- */
.help-hero { text-align: center; padding: 56px 0 32px; }
.help-hero h1 { font-size: clamp(30px, 4.4vw, 44px); font-weight: 700; }
.help-hero p { margin: 12px auto 0; color: var(--muted); max-width: 52ch; }
.help-search { max-width: 640px; margin: 26px auto 0; position: relative; }
.help-search .ti { position: absolute; left: 18px; top: 50%; transform: translateY(-50%); color: var(--muted); font-size: 20px; }
.help-search input { width: 100%; min-height: 56px; padding: 0 18px 0 50px; border-radius: 16px; border: 1px solid var(--line); background: var(--surface); font-size: 15px; box-shadow: var(--shadow-sm); }
.help-search input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 4px var(--primary-soft); }
.help-banner { max-width: 900px; margin: 22px auto 0; display: flex; align-items: center; gap: 14px; padding: 16px 20px; border-radius: 14px; background: var(--warn-soft); border: 1px solid color-mix(in srgb, var(--warn) 25%, transparent); }
.help-banner .ti { font-size: 24px; color: var(--warn); flex: none; }
.help-banner b { display: block; font-size: 14.5px; color: var(--ink); }
.help-banner span { font-size: 13px; color: var(--warn); }
.help-banner a { margin-left: auto; flex: none; }
.help-layout { display: grid; grid-template-columns: 240px 1fr; gap: 32px; align-items: start; padding: 36px 0 88px; }
.help-cats { position: sticky; top: 88px; display: grid; gap: 4px; }
.help-cats button { display: flex; align-items: center; gap: 10px; width: 100%; text-align: left; border: 0; background: transparent; padding: 11px 14px; border-radius: 12px; cursor: pointer; color: var(--ink-2); font-size: 14.5px; font-weight: 500; transition: background .2s, color .2s; }
.help-cats button .ti { color: var(--muted); font-size: 18px; }
.help-cats button .cnt { margin-left: auto; font-size: 12px; color: var(--muted); background: var(--surface-2); border-radius: 999px; padding: 1px 8px; }
.help-cats button:hover { background: var(--surface-2); color: var(--ink); }
.help-cats button[aria-pressed="true"] { background: var(--primary-soft); color: var(--primary); }
.help-cats button[aria-pressed="true"] .ti { color: var(--primary); }
.help-cats button[aria-pressed="true"] .cnt { background: #fff; color: var(--primary); }
.help-cat-head { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.help-cat-head .ib { width: 40px; height: 40px; border-radius: 11px; background: var(--primary-soft); color: var(--primary); display: grid; place-items: center; font-size: 20px; }
.help-cat-head h2 { font-size: 20px; }
.help-cat-head span { font-size: 13px; color: var(--muted); }
.help-empty-side { text-align: center; padding: 40px; }
@media (max-width: 820px) {
  .help-layout { grid-template-columns: 1fr; gap: 18px; }
  .help-cats { position: static; grid-auto-flow: column; grid-auto-columns: max-content; overflow-x: auto; padding-bottom: 6px; }
  .help-cats button { white-space: nowrap; }
  .help-cats button .cnt { display: none; }
}

/* ---------- 博客卡片 ---------- */
.sec-head-row { display: flex; justify-content: space-between; align-items: flex-end; gap: 20px; flex-wrap: wrap; margin-bottom: 36px; }
.sec-head-row h2 { font-size: clamp(26px, 3.2vw, 34px); margin-top: 10px; }
.sec-head-row p { margin-top: 8px; color: var(--muted); }
.kicker { font-size: 12px; font-weight: 600; letter-spacing: .3em; color: var(--primary); }
.posts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.post { overflow: hidden; display: flex; flex-direction: column; transition: transform .3s var(--ease), box-shadow .3s var(--ease); }
.post:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.cover { aspect-ratio: 16 / 8; position: relative; overflow: hidden; display: flex; flex-direction: column; justify-content: flex-end; padding: 24px 26px; color: #fff; }
/* 斜向柔光层（替代网格，避免生成味） */
.cover::before { content: ""; position: absolute; inset: 0; background: linear-gradient(120deg, rgb(255 255 255 / .16), transparent 42%); }
/* 右上柔光球 + 图标水印 */
.cover::after { content: ""; position: absolute; right: -50px; top: -60px; width: 240px; height: 240px; border-radius: 999px; background: radial-gradient(circle at 30% 30%, rgb(255 255 255 / .22), transparent 70%); }
.cover .ti { position: absolute; right: 18px; bottom: -8px; font-size: 116px; opacity: .16; z-index: 0; transform: rotate(-8deg); }
.cover .cover-eyebrow { position: relative; z-index: 1; font-size: 11.5px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; opacity: .85; margin-bottom: 8px; }
.cover strong { position: relative; z-index: 1; font-size: 23px; font-weight: 700; line-height: 1.32; max-width: 90%; letter-spacing: -.01em; text-shadow: 0 2px 16px rgb(0 0 0 / .18); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.post:hover .cover .ti { transform: rotate(-8deg) scale(1.06); transition: transform .4s var(--ease); }
.cv-indigo { background: linear-gradient(135deg, #4f46e5, #7c3aed); }
.cv-green { background: linear-gradient(135deg, #059669, #10b981); }
.cv-blue { background: linear-gradient(135deg, #2563eb, #0ea5e9); }
.cv-amber { background: linear-gradient(135deg, #d97706, #f59e0b); }
.cv-rose { background: linear-gradient(135deg, #e11d48, #f43f5e); }
.cv-slate { background: linear-gradient(135deg, #1e293b, #475569); }
.post-body { padding: 20px 24px 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.post-meta { font-size: 12.5px; color: var(--muted); }
.post h3 { font-size: 18px; font-weight: 600; line-height: 1.4; }
.post p { font-size: 14.5px; color: var(--muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.post .chips { display: flex; gap: 8px; flex-wrap: wrap; margin-top: auto; padding-top: 4px; }
.tagcloud { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; margin-top: 32px; }
.tagcloud a { padding: 5px 14px; border: 1px solid var(--line); border-radius: 999px; font-size: 13px; color: var(--ink-2); background: var(--surface); transition: all .2s; }
.tagcloud a:hover, .tagcloud a[aria-current="true"] { border-color: var(--primary-line); color: var(--primary); background: var(--primary-soft); }
@media (max-width: 760px) { .posts { grid-template-columns: 1fr; } }

/* ---------- 文章页 ---------- */
.article-head { padding-top: 56px; padding-bottom: 32px; text-align: center; }
.article-head h1 { font-size: clamp(28px, 4.2vw, 42px); font-weight: 700; margin: 16px auto 0; max-width: 820px; }
.article-head .post-meta { margin-top: 14px; font-size: 14px; }
.crumb { font-size: 13.5px; color: var(--muted); display: flex; gap: 6px; justify-content: center; align-items: center; }
.crumb a:hover { color: var(--primary); }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 40px; align-items: start; }
.prose { padding: 44px 48px; font-size: 16.5px; line-height: 1.85; color: var(--ink-2); }
.prose > * + * { margin-top: 1.1em; }
/* 首段做导语 */
.prose > p:first-of-type { font-size: 18px; line-height: 1.8; color: var(--ink); }
.prose h2 { position: relative; font-size: 25px; color: var(--ink); margin-top: 2.2em; padding-left: 15px; line-height: 1.35; }
.prose h2::before { content: ""; position: absolute; left: 0; top: .15em; bottom: .15em; width: 4px; border-radius: 999px; background: var(--grad); }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 19px; color: var(--ink); margin-top: 1.7em; }
.prose a:not(.btn) { color: var(--primary); font-weight: 500; text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--primary-line); transition: text-decoration-color .2s; }
.prose a:not(.btn):hover { text-decoration-color: var(--primary); }
.prose .btn { color: var(--primary-ink); text-decoration: none; }
.prose strong { color: var(--ink); font-weight: 600; }
.prose ul, .prose ol { padding-left: 0; list-style: none; }
.prose li { position: relative; padding-left: 1.7em; }
.prose li + li { margin-top: .55em; }
.prose ul > li::before { content: ""; position: absolute; left: .3em; top: .72em; width: 6px; height: 6px; border-radius: 999px; background: var(--primary); }
.prose ol { counter-reset: li; }
.prose ol > li { counter-increment: li; }
.prose ol > li::before { content: counter(li); position: absolute; left: 0; top: .1em; width: 22px; height: 22px; border-radius: 999px; background: var(--primary-soft); color: var(--primary); font-size: 12.5px; font-weight: 700; display: grid; place-items: center; }
.prose li::marker { content: none; }
.prose code { font-family: var(--mono); font-size: .88em; background: var(--surface-2); padding: 2px 6px; border-radius: 6px; }
.prose pre { background: #0f172a; color: #e2e8f0; padding: 16px 18px; border-radius: 12px; overflow-x: auto; font-size: 14px; line-height: 1.6; }
.prose pre code { background: none; padding: 0; color: inherit; }
.prose blockquote { margin-left: 0; margin-right: 0; padding: 14px 18px; border-radius: 12px; background: var(--primary-soft); color: var(--ink-2); border: 1px solid var(--primary-line); }
.prose table { width: 100%; border-collapse: collapse; font-size: 15px; display: block; overflow-x: auto; }
.prose th, .prose td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; }
.prose th { background: var(--surface-2); color: var(--ink); }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 2em 0; }
.read-progress { position: fixed; top: 0; left: 0; height: 3px; width: 100%; transform: scaleX(0); transform-origin: left; background: var(--grad); z-index: 40; transition: transform .1s linear; will-change: transform; }
.toc h4 { font-size: 14px; margin-bottom: 10px; }
.toc nav { display: grid; gap: 2px; }
.toc a { display: block; padding: 6px 10px; border-left: 2px solid var(--line); font-size: 13.5px; color: var(--muted); line-height: 1.5; transition: color .2s, border-color .2s, background .2s; border-radius: 0 8px 8px 0; }
.toc a.lv3 { padding-left: 22px; font-size: 13px; }
.toc a:hover { color: var(--ink); background: var(--surface-2); }
.toc a.on { color: var(--primary); border-left-color: var(--primary); background: var(--primary-soft); font-weight: 500; }
.prose-cta { margin-top: 32px; padding: 22px 24px; border-radius: 14px; background: var(--primary-soft); display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.prose-cta b { display: block; font-size: 16px; color: var(--ink); }
.prose-cta span { font-size: 14px; color: var(--muted); }
.aside { position: sticky; top: 88px; display: grid; gap: 16px; }
.aside .card { padding: 20px; }
.aside h4 { font-size: 15px; margin-bottom: 10px; }
.aside a.rel { display: block; padding: 8px 0; font-size: 14px; color: var(--ink-2); border-top: 1px solid var(--line); }
.aside a.rel:first-of-type { border-top: 0; }
.aside a.rel:hover { color: var(--primary); }
.aside .promo { background: var(--grad); color: #fff; border: 0; }
.aside .promo p { font-size: 14px; opacity: .85; margin: 6px 0 14px; }
.aside .promo .btn { background: #fff; color: var(--primary); }
@media (max-width: 960px) { .article-layout { grid-template-columns: 1fr; } .aside { position: static; } .prose { padding: 26px 20px; font-size: 16px; } }

/* ---------- 收尾 CTA ---------- */
.cta-band { background: var(--grad); color: #fff; border-radius: 24px; padding: 48px; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; box-shadow: var(--shadow-cta); }
.cta-band h2 { font-size: clamp(24px, 3vw, 32px); }
.cta-band p { margin-top: 6px; opacity: .85; }
.cta-band .btn { background: #fff; color: var(--primary); }
@media (max-width: 560px) { .cta-band { padding: 30px 24px; } }

/* ---------- 页脚 ---------- */
.footer { background: var(--footer); color: #94a3b8; padding: 56px 0 36px; font-size: 14px; margin-top: 0; }
.footer .cols { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 32px; }
.footer .brand-text b { color: #fff; }
.footer h4 { margin: 0 0 14px; color: #fff; font-size: 14px; font-weight: 600; }
.footer a:not(.brand) { display: block; padding: 4px 0; transition: color .2s; }
.footer a:not(.brand):hover { color: #fff; }
.footer .about p { margin-top: 14px; max-width: 34ch; line-height: 1.7; }
.footer .legal { margin-top: 44px; padding-top: 22px; border-top: 1px solid rgb(148 163 184 / .18); font-size: 13px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
@media (max-width: 820px) { .footer .cols { grid-template-columns: 1fr 1fr; } .footer .about { grid-column: 1 / -1; } }

/* ---------- 内页头 ---------- */
.page-head { padding-top: 56px; padding-bottom: 36px; text-align: center; }
.page-head h1 { font-size: clamp(30px, 4.4vw, 44px); font-weight: 700; margin-top: 14px; }
.page-head p { margin: 12px auto 0; color: var(--muted); max-width: 60ch; font-size: 16.5px; }
.page-head .links { margin-top: 16px; display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

/* ---------- 套餐 ---------- */
.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
/* 宽屏按卡片数排，避免末行落单：6 张 3+3，5 张 3+2 且末行居中 */
@media (min-width: 961px) {
  .plans:has(> :nth-child(6):last-child) { grid-template-columns: repeat(3, 1fr); }
  .plans:has(> :nth-child(5):last-child) { grid-template-columns: repeat(6, 1fr); }
  .plans:has(> :nth-child(5):last-child) > * { grid-column: span 2; }
  .plans:has(> :nth-child(5):last-child) > :nth-child(4) { grid-column: 2 / span 2; }
}
/* 平板：两列，单数时最后一张居中 */
@media (min-width: 541px) and (max-width: 960px) {
  .plans { grid-template-columns: repeat(4, 1fr); }
  .plans > * { grid-column: span 2; }
  .plans > :last-child:nth-child(odd) { grid-column: 2 / span 2; }
}
.plan { position: relative; display: flex; flex-direction: column; padding: 28px; transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s; }
.plan:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.plan.featured { border: 2px solid transparent; background: linear-gradient(var(--surface), var(--surface)) padding-box, var(--grad) border-box; box-shadow: var(--shadow-cta); }
.plan .ribbon { position: absolute; top: -12px; left: 24px; }
.plan h3 { font-size: 20px; font-weight: 700; }
.plan .sub { margin-top: 4px; color: var(--muted); font-size: 14px; }
.plan .price { margin-top: 20px; display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; }
.plan .price b { font-size: 40px; letter-spacing: -.02em; font-weight: 700; }
.plan .price em { font-style: normal; font-size: 15px; color: var(--muted); }
.plan .price s { color: var(--muted); font-size: 14px; }
.plan .save { font-size: 12.5px; color: var(--err); font-weight: 600; background: var(--err-soft); padding: 2px 8px; border-radius: 999px; }
.plan ul { list-style: none; padding: 0; margin: 20px 0 24px; display: grid; gap: 10px; font-size: 14.5px; color: var(--ink-2); }
.plan li { display: flex; gap: 8px; }
.plan li .ti { color: var(--ok); margin-top: 4px; }
.plan .btn { margin-top: auto; }
.plan.selectable { cursor: pointer; }
.plan.selected { border: 2px solid transparent; background: linear-gradient(var(--surface), var(--surface)) padding-box, var(--grad) border-box; }
.plan.soldout { opacity: .55; }
.plan-boxes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 18px 0 4px; }
.plan .pbox { display: flex; flex-direction: column; align-items: center; gap: 5px; padding: 12px 6px; border-radius: 12px; background: var(--surface-2); text-align: center; }
.plan .pbox .ti { font-size: 20px; color: var(--primary); }
.plan .pbox span { font-size: 11.5px; color: var(--ink-2); line-height: 1.35; }
.plan.featured .pbox { background: var(--primary-soft); }
/* 购买页顶部流程步骤条 */
.buy-steps { display: flex; align-items: center; justify-content: center; gap: 6px; flex-wrap: wrap; margin: 8px 0 4px; }
.buy-steps .st { display: inline-flex; align-items: center; gap: 8px; padding: 8px 16px; border-radius: 999px; background: var(--surface); border: 1px solid var(--line); font-size: 13.5px; color: var(--ink-2); }
.buy-steps .st b { width: 20px; height: 20px; border-radius: 999px; background: var(--grad); color: #fff; display: grid; place-items: center; font-size: 12px; }
.buy-steps .sep { color: var(--muted); }
@media (max-width: 560px) { .buy-steps .st { padding: 7px 12px; font-size: 12.5px; } .buy-steps .sep { display: none; } }
.plan-skel { height: 320px; border-radius: var(--r-card); background: linear-gradient(90deg, var(--surface-2), var(--surface), var(--surface-2)); background-size: 200% 100%; animation: shimmer 1.4s linear infinite; }
@keyframes shimmer { to { background-position: -200% 0; } }
.perks { display: flex; justify-content: center; gap: 36px; flex-wrap: wrap; margin-top: 36px; }
.perks div { display: flex; gap: 10px; align-items: center; font-size: 14px; }
.perks b { display: block; }
.perks small { display: block; color: var(--muted); font-size: 12.5px; }

/* ---------- 下单 ---------- */
.checkout { display: grid; grid-template-columns: 1fr 380px; gap: 28px; align-items: start; }
.checkout-side { position: sticky; top: 88px; }
.summary-row { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0; font-size: 15px; }
.summary-row.total { border-top: 1px solid var(--line); margin-top: 8px; padding-top: 16px; font-weight: 700; font-size: 18px; }
.summary-row.total span:last-child { font-size: 24px; }
.pay-opts { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.pay-opt { position: relative; display: flex; align-items: center; gap: 10px; padding: 12px 16px; min-height: 56px; border-radius: 14px; border: 1px solid var(--line); background: var(--surface); cursor: pointer; font-weight: 600; transition: border-color .2s, box-shadow .2s; }
.pay-opt .ti { font-size: 26px; }
.pay-opt input { position: absolute; opacity: 0; pointer-events: none; }
.pay-opt:has(input:checked) { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
.pay-opt:has(input:focus-visible) { outline: 2px solid var(--primary); outline-offset: 2px; }
.ic-alipay { color: #1677ff; }
.ic-wechat { color: #07c160; }
.step-title { font-size: 18px; font-weight: 600; display: flex; align-items: center; gap: 10px; }
.step-title .n { width: 26px; height: 26px; border-radius: 999px; background: var(--grad); color: #fff; display: grid; place-items: center; font-size: 13px; }
@media (max-width: 900px) { .checkout { grid-template-columns: 1fr; } .checkout-side { position: static; } }

/* ---------- 卡密 / 订单 ---------- */
.cdk-box { display: flex; align-items: center; gap: 12px; padding: 16px 18px; border-radius: 14px; background: var(--surface-2); border: 1px dashed #cbd5e1; }
.cdk-box code { flex: 1; font-family: var(--mono); font-size: clamp(15px, 2.4vw, 19px); font-weight: 600; letter-spacing: .03em; word-break: break-all; }
.status-hero { text-align: center; padding: 40px 24px 28px; }
.status-hero .ic { width: 64px; height: 64px; margin: 0 auto 16px; border-radius: 999px; display: grid; place-items: center; font-size: 32px; }
.status-hero h1 { font-size: 26px; }
.status-hero p { margin-top: 6px; color: var(--muted); }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 10px 20px; font-size: 14.5px; margin: 0; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; text-align: right; word-break: break-all; }

/* ---------- 兑换 ---------- */
.stepper { display: flex; gap: 8px; margin-bottom: 24px; }
.stepper span { flex: 1; height: 5px; border-radius: 999px; background: var(--line); transition: background .3s var(--ease); }
.stepper span.on { background: var(--grad); }
.seg { display: inline-flex; padding: 4px; border-radius: 12px; background: var(--surface-2); gap: 4px; }
.seg button { border: 0; background: transparent; padding: 8px 14px; border-radius: 9px; cursor: pointer; font-size: 14px; font-weight: 600; color: var(--muted); min-height: 36px; }
.seg button[aria-pressed="true"] { background: var(--surface); color: var(--primary); box-shadow: var(--shadow-sm); }
.timeline { list-style: none; margin: 16px 0 0; padding: 0; display: grid; gap: 10px; font-size: 14px; }
.timeline li { display: flex; gap: 10px; color: var(--ink-2); }
.timeline time { color: var(--muted); flex: none; font-family: var(--mono); font-size: 13px; }
.howto { font-size: 14px; color: var(--ink-2); display: grid; gap: 8px; padding-left: 20px; margin: 10px 0 0; }
/* 新手分步引导 */
.guide { display: grid; gap: 0; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; background: var(--surface); }
.gstep { display: flex; gap: 12px; padding: 16px; }
.gstep + .gstep { border-top: 1px solid var(--line); }
.gnum { width: 26px; height: 26px; flex: none; border-radius: 999px; background: var(--grad); color: #fff; display: grid; place-items: center; font-size: 13px; font-weight: 700; }
.gbody { flex: 1; min-width: 0; }
.gbody > b { font-size: 14.5px; display: block; }
.gbody p { font-size: 13px; color: var(--muted); margin: 4px 0 10px; line-height: 1.6; }
.gbody p b { color: var(--ink); }
.gbtns { display: flex; gap: 8px; flex-wrap: wrap; }
.gstep.done .gnum { background: var(--ok); }
.field .paste-hint { font-size: 12.5px; color: var(--primary); margin-top: 4px; }

/* ---------- 订单列表 ---------- */
.order-list { display: grid; gap: 12px; }
.order-item { display: grid; grid-template-columns: 1fr auto; gap: 6px 16px; padding: 16px 20px; align-items: center; transition: border-color .2s, box-shadow .2s; }
.order-item:hover { border-color: var(--primary-line); box-shadow: var(--shadow); }
.order-item .meta { font-size: 13px; color: var(--muted); }

.empty { text-align: center; padding: 44px 20px; color: var(--muted); }
.empty .ti { font-size: 36px; display: block; margin: 0 auto 10px; opacity: .6; }

.toast { position: fixed; left: 50%; bottom: 28px; z-index: 50; transform: translate(-50%, 20px); opacity: 0; background: var(--ink); color: var(--bg); padding: 10px 18px; border-radius: 12px; font-size: 14px; transition: opacity .25s var(--ease), transform .25s var(--ease); pointer-events: none; max-width: calc(100% - 32px); }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- 头像行 / 实时成交条 / 收藏浮窗 ---------- */
.av-row { display: inline-flex; }
.av-row .av { width: 26px; height: 26px; border-radius: 999px; display: grid; place-items: center; color: #fff; font-size: 11px; font-weight: 600; border: 2px solid var(--bg); margin-left: -8px; }
.av-row .av:first-child { margin-left: 0; }
.proof .av-row { margin-bottom: 2px; }
.live-ticker { margin-top: 12px; display: inline-flex; align-items: center; gap: 8px; padding: 7px 14px; border-radius: 999px; background: var(--ok-soft); color: var(--ok); font-size: 13px; font-weight: 500; }
.live-dot { width: 7px; height: 7px; border-radius: 999px; background: var(--ok); position: relative; flex: none; }
.live-dot::after { content: ""; position: absolute; inset: -4px; border-radius: 999px; border: 2px solid var(--ok); opacity: .5; }
@media (prefers-reduced-motion: no-preference) {
  .live-dot::after { animation: ping 1.6s var(--ease) infinite; }
  @keyframes ping { 0% { transform: scale(.6); opacity: .6; } 100% { transform: scale(1.8); opacity: 0; } }
  .live-ticker.flip #tickerText, .live-ticker.flip { animation: tickIn .5s var(--ease); }
  @keyframes tickIn { from { opacity: 0; transform: translateY(6px); } }
}
.bookmark-pop { position: fixed; right: 20px; bottom: 20px; z-index: 45; width: 260px; padding: 16px; border-radius: 16px; background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow); opacity: 0; transform: translateY(16px); transition: opacity .3s var(--ease), transform .3s var(--ease); }
.bookmark-pop.in { opacity: 1; transform: none; }
.bookmark-pop .bk-close { position: absolute; right: 12px; top: 12px; border: 0; background: transparent; color: var(--muted); font-size: 12.5px; cursor: pointer; }
.bookmark-pop .bk-body { display: flex; gap: 10px; align-items: flex-start; margin: 2px 0 12px; }
.bookmark-pop .bk-body .ti { font-size: 26px; color: var(--primary); flex: none; }
.bookmark-pop b { display: block; font-size: 14px; }
.bookmark-pop span { display: block; font-size: 12.5px; color: var(--muted); }
@media (max-width: 480px) { .bookmark-pop { right: 12px; left: 12px; bottom: 12px; width: auto; } }

/* ---------- 动效 ---------- */
@media (prefers-reduced-motion: no-preference) {
  /* 对齐参考站 fade-in-up：上移 20px，0.5s ease-out */
  .reveal { opacity: 0; transform: translateY(20px); transition: opacity .5s ease-out, transform .5s ease-out; transition-delay: calc(var(--i, 0) * 70ms); }
  .reveal.in { opacity: 1; transform: none; }
  .rise { animation: rise .5s ease-out both; animation-delay: calc(var(--i, 0) * 90ms); }
  @keyframes rise { from { opacity: 0; transform: translateY(20px); } }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .marquee-track { animation: none; flex-wrap: wrap; width: auto; justify-content: center; }
}