[data-claude-promo][hidden] { display: none !important; }

/* ============================================================
   JiuRelay site-v4 — 暗色高级开发者风重设计
   约束：index.html DOM 与 site-v3.js 完全不动，纯换肤。
   所有 [hidden] 显式规则、.error-panel 默认隐藏、JS 注入的
   .spinner/.policy-ttl 等类均为承重规则，不可删。
   ============================================================ */

:root {
    --bg: #0b0e0c;
    --panel: #131714;
    --panel-2: #181d19;
    --inset: #0e120f;
    --line: rgba(235, 245, 238, .08);
    --line-strong: rgba(235, 245, 238, .16);
    --ink: #edf2ee;
    --ink-soft: #b7c0b9;
    --ink-muted: #828c84;
    --green: #3ecf8e;
    --green-hi: #63e0a8;
    --green-deep: #04301b;
    --green-soft: rgba(62, 207, 142, .09);
    --green-line: rgba(62, 207, 142, .30);
    --green-glow: rgba(62, 207, 142, .18);
    --amber: #eab965;
    --amber-soft: rgba(234, 185, 101, .09);
    --amber-line: rgba(234, 185, 101, .28);
    --red: #ff7a6e;
    --red-soft: rgba(255, 122, 110, .09);
    --red-line: rgba(255, 122, 110, .3);
    --blue: #7fb0ff;
    --blue-soft: rgba(127, 176, 255, .1);
    --blue-line: rgba(127, 176, 255, .3);
    --surface: #161b17; /* docs.css 等后加载层引用的卡片底色别名 */
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --sans: Inter, "SF Pro Display", "SF Pro Text", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    --mono: "SF Mono", "SFMono-Regular", ui-monospace, Consolas, "Liberation Mono", Menlo, monospace;
  }

  * { box-sizing: border-box; }

  html { color-scheme: dark; }

  body {
    min-width: 320px;
    min-height: 100vh;
    margin: 0;
    overflow-x: hidden;
    background: var(--bg);
    color: var(--ink);
    font-family: var(--sans);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
  }

  /* 页面氛围：顶部绿色光晕 + 淡网格，纯装饰不拦截事件 */
  body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    background:
      radial-gradient(1000px 640px at 18% -8%, rgba(62, 207, 142, .13), transparent 62%),
      radial-gradient(820px 540px at 88% -4%, rgba(62, 207, 142, .06), transparent 58%),
      radial-gradient(900px 700px at 50% 110%, rgba(62, 207, 142, .05), transparent 60%);
  }

  body::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    background-image:
      linear-gradient(rgba(235, 245, 238, .028) 1px, transparent 1px),
      linear-gradient(90deg, rgba(235, 245, 238, .028) 1px, transparent 1px);
    background-size: 46px 46px;
    -webkit-mask-image: radial-gradient(900px 520px at 50% 0, #000 30%, transparent 100%);
    mask-image: radial-gradient(900px 520px at 50% 0, #000 30%, transparent 100%);
    pointer-events: none;
  }

  ::selection { background: rgba(62, 207, 142, .28); }

  button,
  a { -webkit-tap-highlight-color: transparent; }

  button { font: inherit; }

  a,
  button,
  summary { transition: color .18s ease, background-color .18s ease, border-color .18s ease, box-shadow .18s ease; }

  :focus-visible {
    outline: 2px solid var(--green);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
  }

  .container {
    width: min(1180px, calc(100% - 48px));
    margin: 0 auto;
  }

  /* 导航是 sticky 的，JS scrollIntoView 的目标要让出导航高度 */
  #result,
  #risk-challenge { scroll-margin-top: 78px; }

  /* ---------- nav ---------- */

  .nav {
    position: sticky;
    top: 0;
    z-index: 50;
    height: 64px;
    border-bottom: 1px solid var(--line);
    background: rgba(11, 14, 12, .82);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
  }

  .nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
  }

  .brand {
    display: inline-flex;
    align-items: center;
    gap: 11px;
    color: var(--ink);
    text-decoration: none;
  }

  .brand-mark {
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    border: 1px solid var(--green-line);
    border-radius: var(--radius-sm);
    background: var(--green-soft);
    color: var(--green);
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 700;
  }

  .brand-mark.has-brand-logo {
    overflow: hidden;
    border: 0;
    background: transparent;
    filter: drop-shadow(0 4px 14px rgba(62, 207, 142, .35));
  }

  .brand-mark.has-brand-logo img {
    display: block;
    width: 100%;
    height: 100%;
  }

  .brand-name {
    font-size: 15.5px;
    font-weight: 700;
    letter-spacing: .01em;
  }

  .nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .contact-nav-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    min-height: 34px;
    padding: 0 12px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(235, 245, 238, .03);
    color: var(--ink-soft);
    font-size: 12px;
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
  }

  .contact-nav-link:hover {
    border-color: var(--green-line);
    background: var(--green-soft);
    color: var(--green);
  }

  .contact-nav-link svg { width: 14px; height: 14px; }

  .status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 34px;
    padding: 0 14px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(235, 245, 238, .03);
    color: var(--ink-soft);
    font-size: 12px;
    font-weight: 600;
  }

  .status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--ink-muted);
    box-shadow: none;
  }

  .status.is-healthy { border-color: var(--green-line); color: #cfe9db; }

  .status.is-healthy .status-dot {
    background: var(--green);
    box-shadow: 0 0 0 3px rgba(62, 207, 142, .16), 0 0 12px rgba(62, 207, 142, .8);
    animation: status-pulse 2.4s ease-in-out infinite;
  }

  .status.is-unhealthy { border-color: var(--red-line); }

  .status.is-unhealthy .status-dot {
    background: var(--red);
    box-shadow: 0 0 0 3px rgba(255, 122, 110, .14);
  }

  /* 其他页面/JS 可能注入的导航入口，保底样式 */
  .referral-nav-entry {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-height: 34px;
    padding: 0 10px;
    border: 1px solid var(--green-line);
    border-radius: 999px;
    background: var(--green-soft);
    color: var(--green);
    cursor: pointer;
    font-size: 11px;
    font-weight: 700;
    white-space: nowrap;
    animation: referral-nudge .58s ease 1.15s 3 both;
    transform-origin: 50% 60%;
  }

  .referral-nav-entry:hover { background: var(--green); color: var(--green-deep); }

  .referral-nav-entry svg { width: 14px; height: 14px; flex: 0 0 auto; }

  .referral-nav-badge {
    padding: 2px 4px;
    border-radius: 3px;
    background: var(--amber);
    color: #241703;
    font-family: var(--mono);
    font-size: 8px;
    line-height: 1;
  }

  .image-lab-entry {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    min-height: 34px;
    padding: 0 12px;
    border: 1px solid var(--green-line);
    border-radius: 999px;
    background: var(--green-soft);
    color: var(--green);
    font-size: 12px;
    font-weight: 700;
    text-decoration: none;
  }

  .image-lab-entry:hover { background: var(--green); color: var(--green-deep); }

  .image-lab-entry svg { width: 15px; height: 15px; }

  .image-lab-label { display: inline-flex; align-items: center; gap: 6px; min-width: 0; }

  .image-lab-model {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-family: var(--mono);
    font-size: 9px;
  }

  .image-lab-new {
    padding: 2px 4px;
    border-radius: 3px;
    background: var(--green);
    color: var(--green-deep);
    font-family: var(--mono);
    font-size: 8px;
    line-height: 1;
  }

  /* ---------- hero ---------- */

  .hero {
    display: grid;
    grid-template-columns: minmax(280px, .82fr) minmax(520px, 1.18fr);
    gap: 72px;
    align-items: start;
    padding: 88px 0 72px;
  }

  .intro { padding-top: 10px; }

  .eyebrow {
    margin: 0 0 28px;
    color: var(--ink-muted);
    font-family: var(--mono);
    font-size: 11.5px;
    font-weight: 600;
    letter-spacing: .08em;
  }

  .eyebrow .bracket { color: var(--green); }

  .intro h1 {
    margin: 0;
    background: linear-gradient(180deg, #f4f8f4 30%, #a9cdb9 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-size: clamp(56px, 6.2vw, 78px);
    font-weight: 700;
    line-height: 1.02;
    letter-spacing: -.02em;
  }

  .caret {
    background: none;
    -webkit-background-clip: initial;
    background-clip: initial;
    -webkit-text-fill-color: var(--green);
    color: var(--green);
    font-weight: 400;
    animation: caret-blink 1.1s step-end infinite;
  }

  .lede {
    max-width: 400px;
    margin: 26px 0 0;
    color: var(--ink-soft);
    font-size: 16.5px;
    line-height: 1.85;
  }

  .notes {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 18px;
    color: var(--ink);
    font-size: 14px;
    font-weight: 600;
  }

  .notes::before {
    content: "//";
    color: var(--green);
    font-family: var(--mono);
    font-size: 12px;
  }

  .notes-divider {
    width: 1px;
    height: 13px;
    background: var(--line-strong);
  }

  /* 生图工作台入口 */

  .hero-image-launcher {
    display: grid;
    grid-template-columns: 44px minmax(0, 1fr) auto 28px;
    align-items: center;
    gap: 13px;
    width: min(100%, 420px);
    min-height: 72px;
    margin-top: 28px;
    padding: 11px 13px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: linear-gradient(160deg, var(--panel-2), var(--panel));
    color: var(--ink);
    text-decoration: none;
    box-shadow: 0 20px 40px -30px rgba(0, 0, 0, .9);
    transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
  }

  .hero-image-launcher:hover {
    border-color: var(--green-line);
    box-shadow: 0 20px 44px -26px rgba(62, 207, 142, .38);
    transform: translateY(-2px);
  }

  .hero-image-launcher-icon {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border: 1px solid var(--green-line);
    border-radius: var(--radius-sm);
    background: var(--green-soft);
    color: var(--green);
  }

  .hero-image-launcher-icon svg { width: 20px; height: 20px; }

  .hero-image-launcher-copy {
    display: grid;
    gap: 4px;
    min-width: 0;
  }

  .hero-image-launcher-copy strong { font-size: 14px; line-height: 1.25; }

  .hero-image-launcher-copy small {
    color: var(--ink-muted);
    font-family: var(--mono);
    font-size: 9px;
    font-weight: 600;
    line-height: 1.4;
    letter-spacing: .04em;
    overflow-wrap: anywhere;
  }

  .hero-image-launcher-new {
    padding: 3px 6px;
    border-radius: 4px;
    background: var(--green);
    color: var(--green-deep);
    font-family: var(--mono);
    font-size: 9px;
    font-weight: 700;
    line-height: 1;
  }

  .hero-image-launcher-arrow {
    display: grid;
    place-items: center;
    color: var(--ink-muted);
    transition: color .18s ease, transform .18s ease;
  }

  .hero-image-launcher-arrow svg { width: 17px; height: 17px; }

  .hero-image-launcher:hover .hero-image-launcher-arrow {
    color: var(--green);
    transform: translateX(3px);
  }

  /* 推广奖励入口（Claude 促销，JS 按合约揭示） */

  .hero-referral-entry {
    position: relative;
    display: grid;
    grid-template-columns: 44px minmax(0, 1fr);
    align-items: center;
    gap: 13px;
    width: min(100%, 420px);
    margin-top: 14px;
    padding: 13px;
    overflow: hidden;
    border: 1px solid var(--green-line);
    border-radius: var(--radius);
    background:
      radial-gradient(320px 130px at 100% 0, rgba(62, 207, 142, .18), transparent 70%),
      linear-gradient(160deg, #10281c, #0d1a13);
    color: var(--ink);
    cursor: pointer;
    text-align: left;
    box-shadow: 0 22px 44px -30px rgba(62, 207, 142, .5);
    transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
  }

  .hero-referral-entry:hover {
    border-color: var(--green);
    box-shadow: 0 24px 48px -26px rgba(62, 207, 142, .6);
    transform: translateY(-2px);
  }

  .hero-referral-entry::after {
    content: "";
    position: absolute;
    top: -46px;
    right: -30px;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: radial-gradient(closest-side, rgba(62, 207, 142, .22), transparent);
    pointer-events: none;
  }

  .hero-referral-models { display: grid; place-items: center; }

  .hero-referral-models b {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    background: #f6f4ef;
    border: 1px solid rgba(255, 255, 255, .2);
  }

  .hero-referral-models b img { width: 26px; height: 26px; display: block; }

  .hero-referral-copy {
    display: grid;
    gap: 3px;
    min-width: 0;
  }

  .hero-referral-kicker {
    color: var(--green);
    font-family: var(--mono);
    font-size: 9px;
    font-weight: 700;
    letter-spacing: .12em;
  }

  .hero-referral-copy strong { font-size: 14.5px; line-height: 1.3; }

  .hero-referral-copy small {
    color: var(--ink-muted);
    font-size: 11.5px;
  }

  .hero-referral-action {
    grid-column: 1 / -1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    margin-top: 4px;
    padding: 9px 12px;
    border-radius: var(--radius-sm);
    background: var(--green);
    color: var(--green-deep);
    font-size: 12.5px;
    font-weight: 700;
  }

  .hero-referral-action svg { width: 15px; height: 15px; }

  /* 协议支持 */

  .spec {
    margin-top: 40px;
    padding-top: 26px;
    border-top: 1px solid var(--line);
    display: grid;
    gap: 14px;
  }

  .spec-row {
    display: flex;
    align-items: baseline;
    gap: 12px;
  }

  .spec-key {
    color: var(--ink-muted);
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: .06em;
    transition: color .18s ease;
  }

  .spec-row:hover .spec-key { color: var(--ink-soft); }

  .spec-dots {
    flex: 1;
    border-bottom: 1px dotted var(--line-strong);
    transform: translateY(-3px);
  }

  .spec-val {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--green);
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .06em;
  }

  .spec-val svg { width: 13px; height: 13px; }

  /* ---------- 领取卡片 ---------- */

  .card {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: linear-gradient(175deg, var(--panel-2), var(--panel) 42%);
    box-shadow:
      0 1px 0 rgba(235, 245, 238, .05) inset,
      0 40px 80px -48px rgba(0, 0, 0, .9),
      0 30px 90px -60px rgba(62, 207, 142, .25);
    animation: card-enter .5s cubic-bezier(.22, .8, .3, 1) both;
  }

  /* 卡顶发光线 */
  .card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 8%;
    right: 8%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(62, 207, 142, .55), transparent);
    pointer-events: none;
  }

  .card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 18px 24px;
    border-bottom: 1px solid var(--line);
  }

  .card-title {
    display: inline-flex;
    align-items: center;
    gap: 11px;
    font-size: 15.5px;
    font-weight: 700;
  }

  .card-no {
    display: grid;
    place-items: center;
    min-width: 26px;
    height: 26px;
    border: 1px solid var(--green-line);
    border-radius: 7px;
    background: var(--green-soft);
    color: var(--green);
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 700;
  }

  .ttl {
    padding: 5px 10px;
    border: 1px solid var(--green-line);
    border-radius: 999px;
    background: var(--green-soft);
    color: var(--green);
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .04em;
    font-variant-numeric: tabular-nums;
  }

  .card-body { padding: 20px 24px 24px; }

  /* ---------- 线路选择 ---------- */

  .route-picker {
    display: grid;
    gap: 8px;
    padding: 14px 24px 0;
  }

  .route-option {
    display: grid;
    grid-template-columns: 40px minmax(0, 1fr) auto;
    align-items: center;
    gap: 13px;
    padding: 11px 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(235, 245, 238, .02);
    color: var(--ink);
    cursor: pointer;
    text-align: left;
    transition: border-color .18s ease, background-color .18s ease, box-shadow .18s ease;
  }

  .route-option:hover:not(:disabled):not(.is-active) {
    border-color: var(--line-strong);
    background: rgba(235, 245, 238, .045);
  }

  .route-option.is-active {
    border-color: var(--green-line);
    background: var(--green-soft);
    box-shadow: 0 0 0 1px var(--green-line), 0 14px 34px -24px rgba(62, 207, 142, .65);
  }

  .route-option:disabled {
    cursor: not-allowed;
    opacity: .45;
  }

  .route-logo {
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: #f6f6f2;
    border: 1px solid rgba(255, 255, 255, .16);
  }

  .route-logo img { display: block; }

  .route-logo.is-zai img { width: 27px; height: 27px; }
  .route-logo.is-grok img { width: 24px; height: 24px; }
  .route-logo.is-claude img { width: 24px; height: 24px; }
  .route-logo.is-gpt img { width: 22px; height: 22px; }

  .route-copy {
    display: grid;
    gap: 3px;
    min-width: 0;
  }

  .route-name {
    font-size: 13.5px;
    font-weight: 700;
    line-height: 1.25;
  }

  .route-desc {
    color: var(--ink-muted);
    font-family: var(--mono);
    font-size: 9px;
    font-weight: 600;
    letter-spacing: .07em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .route-meta {
    display: grid;
    justify-items: end;
    gap: 5px;
  }

  .route-state {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 3px 8px;
    border: 1px solid var(--green-line);
    border-radius: 999px;
    background: rgba(62, 207, 142, .12);
    color: var(--green);
    font-family: var(--mono);
    font-size: 9.5px;
    font-weight: 700;
    letter-spacing: .05em;
    white-space: nowrap;
  }

  /* Claude 倒计时按秒跳，预留宽度防抖动 */
  .route-window-countdown {
    min-width: 8.2ch;
    font-variant-numeric: tabular-nums;
  }

  .route-ttl {
    color: var(--ink-muted);
    font-size: 10.5px;
    font-weight: 600;
    white-space: nowrap;
  }

  .route-option:disabled .route-state {
    border-style: dashed;
    border-color: var(--line-strong);
    background: transparent;
    color: var(--ink-muted);
  }

  /* 状态变体（is-active 下也要生效，规则成对写） */
  .route-option.is-status-off .route-state,
  .route-option.is-active.is-status-off .route-state {
    border-color: var(--line-strong);
    background: rgba(235, 245, 238, .05);
    color: var(--ink-muted);
  }

  .route-option.is-status-cooldown .route-state,
  .route-option.is-active.is-status-cooldown .route-state,
  .route-option.is-status-check .route-state,
  .route-option.is-active.is-status-check .route-state {
    border-color: var(--amber-line);
    background: var(--amber-soft);
    color: var(--amber);
  }

  .route-option.is-status-recovery .route-state,
  .route-option.is-active.is-status-recovery .route-state {
    border-color: var(--blue-line);
    background: var(--blue-soft);
    color: var(--blue);
  }

  /* ---------- 当前线路 ---------- */

  .channel-context {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
    padding: 10px 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: var(--inset);
  }

  .channel-context-label {
    color: var(--ink-muted);
    font-family: var(--mono);
    font-size: 9.5px;
    font-weight: 600;
    letter-spacing: .1em;
  }

  .channel-context-value {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 700;
  }

  .channel-context-value::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 8px rgba(62, 207, 142, .8);
  }

  .channel-context-value.is-status-off::before {
    background: var(--ink-muted);
    box-shadow: none;
  }

  .channel-context-value.is-status-cooldown::before,
  .channel-context-value.is-status-check::before {
    background: var(--amber);
    box-shadow: 0 0 8px rgba(234, 185, 101, .7);
  }

  .channel-context-value.is-status-recovery::before {
    background: var(--blue);
    box-shadow: 0 0 8px rgba(127, 176, 255, .7);
  }

  /* ---------- 领取规则 ---------- */

  .claim-policy {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
    gap: 8px 12px;
    margin-bottom: 14px;
    padding: 12px 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: var(--inset);
  }

  .claim-policy-label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--ink-muted);
    font-size: 11.5px;
    font-weight: 700;
    white-space: nowrap;
  }

  .claim-policy-label svg { width: 14px; height: 14px; }

  .claim-policy p {
    margin: 0;
    color: var(--ink-soft);
    font-size: 12.5px;
    line-height: 1.65;
  }

  .policy-ttl { color: var(--green); font-weight: 700; }

  .claim-policy-rule {
    grid-column: 1 / -1;
    padding-top: 8px;
    border-top: 1px dashed var(--line-strong);
    color: var(--amber) !important;
  }

  .claim-policy-rule strong { color: var(--amber); }

  /* ---------- 邀请任务 ---------- */

  .referral-task {
    display: grid;
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 12px;
    margin-bottom: 14px;
    padding: 13px 14px;
    border: 1px solid var(--amber-line);
    border-radius: var(--radius-sm);
    background: var(--amber-soft);
  }

  .referral-task[hidden] { display: none; }

  .referral-task-icon {
    display: grid;
    place-items: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: rgba(234, 185, 101, .14);
    color: var(--amber);
  }

  .referral-task-icon svg { width: 18px; height: 18px; }

  .referral-task-copy {
    display: grid;
    gap: 4px;
    color: var(--ink-soft);
    font-size: 12px;
    line-height: 1.6;
  }

  .referral-task-copy strong { color: var(--ink); font-size: 13px; }

  .referral-task-copy small { color: var(--ink-muted); font-size: 11px; }

  /* ---------- 人机验证 ---------- */

  .verification {
    display: grid;
    gap: 14px;
    margin-bottom: 14px;
    padding: 15px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--inset);
  }

  .verification-lead {
    display: grid;
    grid-template-columns: 38px minmax(0, 1fr);
    align-items: center;
    gap: 12px;
  }

  .verification-icon {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border: 1px solid var(--amber-line);
    border-radius: var(--radius-sm);
    background: var(--amber-soft);
    color: var(--amber);
    transition: color .18s ease, background-color .18s ease, border-color .18s ease;
  }

  .verification-icon svg { width: 19px; height: 19px; }

  .verification-copy { display: grid; gap: 2px; }

  .verification-title {
    margin: 0;
    font-size: 13.5px;
    font-weight: 700;
  }

  .verification-desc {
    margin: 0;
    color: var(--ink-muted);
    font-size: 12px;
  }

  .verification.is-ready { border-color: var(--green-line); background: rgba(62, 207, 142, .05); }

  .verification.is-ready .verification-icon {
    border-color: var(--green-line);
    background: var(--green-soft);
    color: var(--green);
  }

  .verification.is-ready #turnstile-box { display: none; }

  #turnstile-box {
    justify-self: center;
    width: 300px;
    max-width: 100%;
    min-height: 65px;
  }

  #turnstile-box:empty {
    display: grid;
    place-items: center;
    border: 1px dashed var(--line-strong);
    border-radius: var(--radius-sm);
  }

  #turnstile-box:empty::before {
    content: "SECURITY CHECK LOADING";
    color: var(--ink-muted);
    font-family: var(--mono);
    font-size: 9.5px;
    letter-spacing: .1em;
  }

  /* ---------- 领取按钮 ---------- */

  .claim-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    min-height: 54px;
    padding: 0 18px;
    border: 0;
    border-radius: var(--radius);
    background: linear-gradient(135deg, #43d693, #1da96c);
    color: var(--green-deep);
    cursor: pointer;
    font-size: 15.5px;
    font-weight: 700;
    box-shadow:
      0 1px 0 rgba(255, 255, 255, .25) inset,
      0 16px 34px -18px rgba(62, 207, 142, .55);
    transition: box-shadow .18s ease, transform .18s ease, filter .18s ease;
  }

  .claim-button:hover:not(:disabled) {
    filter: brightness(1.06);
    box-shadow:
      0 1px 0 rgba(255, 255, 255, .25) inset,
      0 20px 40px -18px rgba(62, 207, 142, .65);
    transform: translateY(-1px);
  }

  .claim-button:active:not(:disabled) { transform: translateY(0); filter: brightness(.98); }

  .claim-button:disabled {
    background: rgba(235, 245, 238, .06);
    color: var(--ink-muted);
    cursor: not-allowed;
    box-shadow: none;
  }

  .claim-button-icon {
    display: grid;
    place-items: center;
  }

  .claim-button-icon svg { width: 18px; height: 18px; }

  .spinner {
    width: 17px;
    height: 17px;
    border: 2px solid rgba(4, 48, 27, .25);
    border-top-color: var(--green-deep);
    border-radius: 50%;
    animation: spin .7s linear infinite;
  }

  .claim-button:disabled .spinner {
    border-color: rgba(235, 245, 238, .15);
    border-top-color: var(--ink-muted);
  }

  /* ---------- 风险挑战（额外验证） ---------- */

  .risk-challenge {
    display: grid;
    gap: 13px;
    margin-top: 2px;
    padding: 16px;
    border: 1px solid var(--amber-line);
    border-radius: var(--radius);
    background:
      radial-gradient(320px 120px at 100% 0, rgba(234, 185, 101, .1), transparent 70%),
      var(--inset);
  }

  .risk-challenge[hidden] { display: none; }

  .risk-challenge-head {
    display: grid;
    grid-template-columns: 38px minmax(0, 1fr);
    align-items: center;
    gap: 12px;
  }

  .risk-challenge-icon {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border: 1px solid var(--amber-line);
    border-radius: var(--radius-sm);
    background: var(--amber-soft);
    color: var(--amber);
  }

  .risk-challenge-icon svg { width: 19px; height: 19px; }

  .risk-challenge-copy {
    display: grid;
    gap: 2px;
    font-size: 12px;
    color: var(--ink-muted);
  }

  .risk-challenge-kicker {
    color: var(--amber);
    font-family: var(--mono);
    font-size: 9px;
    font-weight: 700;
    letter-spacing: .12em;
  }

  .risk-challenge-copy strong { color: var(--ink); font-size: 14px; }


  .risk-verification-step {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: rgba(235, 245, 238, .025);
  }

  .risk-verification-copy {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    color: var(--ink-muted);
  }

  .risk-verification-copy strong {
    display: block;
    color: var(--ink);
    font-size: 13px;
  }

  .risk-verification-copy small { font-size: 11px; }

  #risk-turnstile-box {
    width: 300px;
    max-width: 100%;
    min-height: 65px;
  }

  #risk-turnstile-box:empty {
    display: grid;
    place-items: center;
    border: 1px dashed var(--line-strong);
    border-radius: var(--radius-sm);
  }

  #risk-turnstile-box:empty::before {
    content: "ADDITIONAL CHECK LOADING";
    color: var(--ink-muted);
    font-family: var(--mono);
    font-size: 9.5px;
    letter-spacing: .1em;
  }

  .risk-submit-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    width: 100%;
    min-height: 48px;
    border: 0;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, #43d693, #1da96c);
    color: var(--green-deep);
    cursor: pointer;
    font-size: 14px;
    font-weight: 700;
    box-shadow: 0 14px 30px -18px rgba(62, 207, 142, .5);
  }

  .risk-submit-button:hover:not(:disabled) { filter: brightness(1.06); }

  .risk-submit-button:disabled {
    background: rgba(235, 245, 238, .06);
    color: var(--ink-muted);
    cursor: not-allowed;
    box-shadow: none;
  }

  .risk-submit-button svg { width: 16px; height: 16px; }

  .risk-restart-button {
    justify-self: center;
    padding: 4px 8px;
    border: 0;
    background: none;
    color: var(--ink-muted);
    cursor: pointer;
    font-size: 12px;
    text-decoration: underline;
    text-underline-offset: 3px;
  }

  .risk-restart-button:hover { color: var(--ink-soft); }

  .risk-challenge-note {
    margin: 0;
    color: var(--ink-muted);
    font-size: 11px;
    text-align: center;
  }

  /* ---------- 同意条款 ---------- */

  .claim-consent {
    display: grid;
    gap: 4px;
    margin: 14px 0 0;
    color: var(--ink-muted);
    font-size: 11.5px;
    line-height: 1.7;
    text-align: center;
  }

  .claim-consent-purpose { color: var(--ink-soft); font-weight: 600; }

  .legal-inline-link {
    display: inline;
    padding: 0;
    border: 0;
    background: none;
    color: var(--green);
    cursor: pointer;
    font-size: inherit;
    text-decoration: underline;
    text-decoration-color: rgba(62, 207, 142, .4);
    text-underline-offset: 3px;
  }

  .legal-inline-link:hover { text-decoration-color: var(--green); color: var(--green-hi); }

  /* ---------- 领取成功 ---------- */

  .success-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
  }

  .success-status {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 700;
  }

  .success-status-icon {
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: linear-gradient(135deg, #43d693, #1da96c);
    color: var(--green-deep);
    box-shadow: 0 0 0 5px rgba(62, 207, 142, .12);
  }

  .success-status-icon svg { width: 16px; height: 16px; }

  .expiry {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 5px 11px;
    border: 1px solid var(--green-line);
    border-radius: 999px;
    background: var(--green-soft);
    color: var(--green);
    font-family: var(--mono);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .06em;
    white-space: nowrap;
  }

  .expiry::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--green);
    animation: status-pulse 2.4s ease-in-out infinite;
  }

  .key-block {
    display: grid;
    gap: 10px;
    padding: 15px;
    border: 1px solid var(--green-line);
    border-radius: var(--radius);
    background:
      radial-gradient(300px 120px at 0 0, rgba(62, 207, 142, .09), transparent 70%),
      var(--inset);
  }

  .key-label {
    color: var(--ink-muted);
    font-family: var(--mono);
    font-size: 9.5px;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
  }

  .key-value-row {
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .key-value {
    flex: 1;
    min-width: 0;
    color: var(--green-hi);
    font-family: var(--mono);
    font-size: 13px;
    font-weight: 600;
    overflow-wrap: anywhere;
    line-height: 1.6;
  }

  .copy-button {
    display: grid;
    place-items: center;
    flex: 0 0 auto;
    width: 36px;
    height: 36px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-sm);
    background: rgba(235, 245, 238, .04);
    color: var(--ink-soft);
    cursor: pointer;
  }

  .copy-button:hover {
    border-color: var(--green-line);
    background: var(--green-soft);
    color: var(--green);
  }

  .copy-button svg { width: 16px; height: 16px; }

  .key-remaining {
    margin: 0;
    color: var(--ink-soft);
    font-size: 12px;
  }

  .key-remaining span {
    color: var(--green);
    font-family: var(--mono);
    font-weight: 700;
    font-variant-numeric: tabular-nums;
  }

  .model-id-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding-top: 10px;
    border-top: 1px dashed var(--line-strong);
    color: var(--ink-muted);
    font-size: 11.5px;
  }

  .model-id-row code {
    color: var(--ink);
    font-family: var(--mono);
    font-size: 12px;
    font-weight: 600;
  }

  .protocol-note {
    margin: 0;
    color: var(--amber);
    font-size: 11.5px;
  }

  .save-warning {
    margin: 12px 0 0;
    color: var(--ink-soft);
    font-size: 12.5px;
    font-weight: 600;
    text-align: center;
  }

  .save-warning.is-cta {
    color: var(--red);
    font-size: 15px;
    font-weight: 700;
  }

  .idle-revoke-note {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin: 12px 0 0;
    padding: 10px 14px;
    border: 1px solid var(--amber-line);
    border-radius: var(--radius-sm);
    background: var(--amber-soft);
    color: var(--amber);
    font-size: 12.5px;
  }

  .idle-revoke-note svg { width: 15px; height: 15px; flex: 0 0 auto; }

  .idle-revoke-note strong { font-weight: 700; }

  .success-actions {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
    margin-top: 16px;
  }

  .success-guide {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 46px;
    padding: 0 16px;
    border: 1px solid var(--green-line);
    border-radius: var(--radius-sm);
    background: var(--green-soft);
    color: var(--green);
    font-size: 13.5px;
    font-weight: 700;
    text-decoration: none;
  }

  .success-guide:hover { background: var(--green); color: var(--green-deep); }

  .success-guide svg { width: 16px; height: 16px; }

  .success-guide[hidden] { display: none; }



  .copy-text-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 46px;
    padding: 0 16px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-sm);
    background: rgba(235, 245, 238, .04);
    color: var(--ink);
    cursor: pointer;
    font-size: 13.5px;
    font-weight: 700;
  }

  .copy-text-button:hover {
    border-color: var(--green-line);
    background: var(--green-soft);
    color: var(--green);
  }

  .copy-text-button svg { width: 15px; height: 15px; }

  .copy-text-button[hidden] { display: none; }

  /* 网盘交付态：隐藏 key 行、单列动作 */
  #result.is-netdisk .model-id-row { border-top: 0; padding-top: 0; }
  #result.is-netdisk .success-actions { grid-template-columns: 1fr; }

  /* ---------- 加群二维码悬浮（向上弹，卡片 overflow:hidden 依赖此方向） ---------- */

  .success-contact {
    position: relative;
    display: flex;
    justify-content: center;
    margin-top: 14px;
  }

  .success-contact-trigger {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 8px 14px;
    border: 1px solid var(--green-line);
    border-radius: 999px;
    background: transparent;
    color: var(--green);
    cursor: pointer;
    font-size: 12.5px;
    font-weight: 600;
  }

  .success-contact-trigger:hover { background: var(--green-soft); }

  .success-contact-trigger svg { width: 15px; height: 15px; }

  .success-contact-qr {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    z-index: 30;
    display: grid;
    justify-items: center;
    gap: 6px;
    padding: 12px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    background: #fff;
    color: #333;
    font-size: 12px;
    box-shadow: 0 24px 48px -24px rgba(0, 0, 0, .8);
  }

  .success-contact-qr[hidden] { display: none; }

  .success-contact-qr img { display: block; width: 240px; height: auto; }

  /* ---------- 错误面板 ---------- */

  /* 默认必须隐藏：JS 用 style.display='block' 揭示 */
  .error-panel {
    display: none;
    margin-top: 14px;
    padding: 14px 16px;
    border: 1px solid var(--red-line);
    border-radius: var(--radius-sm);
    background: var(--red-soft);
  }

  .error-title {
    margin: 0 0 4px;
    color: var(--red);
    font-size: 13.5px;
    font-weight: 700;
  }

  .error-message {
    margin: 0;
    color: var(--ink-soft);
    font-size: 12.5px;
    line-height: 1.65;
  }

  .error-contact {
    position: relative;
    margin-top: 10px;
  }

  .error-contact-trigger {
    padding: 7px 12px;
    border: 1px solid var(--red-line);
    border-radius: 999px;
    background: transparent;
    color: var(--red);
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
  }

  .error-contact-trigger:hover { background: var(--red-soft); }

  .error-contact-qr {
    position: absolute;
    bottom: 100%;
    left: 0;
    z-index: 30;
    display: grid;
    justify-items: center;
    gap: 6px;
    padding: 12px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    background: #fff;
    color: #333;
    font-size: 12px;
    box-shadow: 0 24px 48px -24px rgba(0, 0, 0, .8);
  }

  .error-contact-qr[hidden] { display: none; }

  .error-contact-qr img { display: block; width: 240px; height: auto; }

  /* ---------- 服务说明三项 ---------- */

  .trust {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    margin-top: 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: rgba(235, 245, 238, .02);
    overflow: hidden;
  }

  .trust-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 8px;
    color: var(--ink-soft);
    font-size: 12px;
    font-weight: 600;
  }

  .trust-item svg { width: 14px; height: 14px; color: var(--green); flex: 0 0 auto; }

  .trust-item + .trust-item { border-left: 1px solid var(--line); }

  /* ---------- 教程入口 ---------- */

  #tutorial-line { margin-top: 14px; }

  .guide-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 12px 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: rgba(235, 245, 238, .02);
    color: var(--ink-soft);
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
  }

  .guide-link span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
  }

  .guide-link svg { width: 15px; height: 15px; }

  .guide-link:hover {
    border-color: var(--green-line);
    color: var(--green);
  }

  .guide-link:hover > svg { transform: translate(2px, -2px); }

  .guide-link > svg { transition: transform .18s ease; }

  /* ---------- 卡片底部 ---------- */

  .card-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 24px;
    border-top: 1px solid var(--line);
    background: rgba(235, 245, 238, .015);
  }

  .card-foot-label {
    color: var(--ink-muted);
    font-family: var(--mono);
    font-size: 9.5px;
    font-weight: 600;
    letter-spacing: .09em;
  }

  .reward-links {
    display: inline-flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 10px;
  }

  .reward-links a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--ink-soft);
    font-size: 12px;
    font-weight: 700;
    text-decoration: none;
    white-space: nowrap;
  }

  .reward-links a:hover { color: var(--green); }

  .reward-links a svg { width: 14px; height: 14px; }

  .reward-links-divider {
    width: 1px;
    height: 12px;
    background: var(--line-strong);
  }

  .reward-links .claude-redeem-entry { color: var(--amber); }

  .reward-links .claude-redeem-entry:hover { color: #f4cd8b; }

  .reward-only {
    padding: 2px 6px;
    border: 1px solid var(--amber-line);
    border-radius: 4px;
    background: var(--amber-soft);
    color: var(--amber);
    font-size: 9.5px;
    font-weight: 700;
  }

  /* ---------- 使用步骤 ---------- */

  .steps { padding: 26px 0 8px; }

  .section-eyebrow {
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 0 0 22px;
    color: var(--ink-muted);
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: .12em;
  }

  .section-eyebrow::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--line);
  }

  .steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
  }

  .step {
    padding: 20px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: linear-gradient(170deg, var(--panel-2), var(--panel));
    transition: border-color .18s ease, transform .18s ease;
  }

  .step:hover { border-color: var(--line-strong); transform: translateY(-2px); }

  .step-no {
    display: inline-grid;
    place-items: center;
    min-width: 30px;
    height: 30px;
    margin-bottom: 14px;
    border: 1px solid var(--green-line);
    border-radius: 9px;
    background: var(--green-soft);
    color: var(--green);
    font-family: var(--mono);
    font-size: 12px;
    font-weight: 700;
  }

  .step h3 {
    margin: 0 0 6px;
    font-size: 15px;
    font-weight: 700;
  }

  .step p {
    margin: 0;
    color: var(--ink-muted);
    font-size: 12.5px;
    line-height: 1.7;
  }

  .always-guide {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 10px;
    color: var(--green);
    font-size: 12.5px;
    font-weight: 700;
    text-decoration: none;
  }

  .always-guide:hover { color: var(--green-hi); }

  .always-guide svg { width: 14px; height: 14px; transition: transform .18s ease; }

  .always-guide:hover svg { transform: translateX(3px); }

  /* ---------- FAQ 折叠面板 ---------- */

  .lower { padding: 30px 0 8px; }

  .panel {
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: linear-gradient(175deg, var(--panel-2), var(--panel));
    overflow: hidden;
  }

  .panel > summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 18px 22px;
    cursor: pointer;
    font-size: 14.5px;
    font-weight: 700;
    list-style: none;
    color: var(--ink);
  }

  .panel > summary::-webkit-details-marker { display: none; }

  .panel > summary:hover { color: var(--green); }

  .panel-chevron {
    display: grid;
    place-items: center;
    width: 28px;
    height: 28px;
    border: 1px solid var(--line);
    border-radius: 50%;
    color: var(--ink-muted);
    transition: transform .22s ease, color .18s ease, border-color .18s ease;
  }

  .panel-chevron svg { width: 15px; height: 15px; }

  .panel[open] .panel-chevron { transform: rotate(180deg); color: var(--green); border-color: var(--green-line); }

  .panel-content {
    display: grid;
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
    gap: 28px;
    padding: 4px 22px 24px;
    border-top: 1px solid var(--line);
  }

  .panel-column { padding-top: 18px; }

  .panel-column h2 {
    margin: 0 0 14px;
    font-size: 14px;
    font-weight: 700;
    color: var(--ink);
  }

  .model-list {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
  }

  .model-item {
    padding: 5px 10px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(235, 245, 238, .03);
    color: var(--ink-soft);
    font-size: 11.5px;
    font-weight: 600;
  }

  .seo-note {
    margin: 14px 0 0;
    color: var(--ink-muted);
    font-size: 11px;
    line-height: 1.7;
  }

  .faq-line { padding: 12px 0; }

  .faq-line + .faq-line { border-top: 1px solid var(--line); }

  .faq-line:first-of-type { padding-top: 0; }

  .faq-line:last-child { padding-bottom: 0; }

  .faq-line strong {
    display: block;
    margin-bottom: 5px;
    font-size: 13px;
    color: var(--ink);
  }

  .faq-line p {
    margin: 0;
    color: var(--ink-muted);
    font-size: 12.5px;
    line-height: 1.75;
  }

  .faq-line p b { color: var(--ink-soft); }

  /* ---------- 页脚 ---------- */

  .foot {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 34px 0 40px;
  }

  .foot p {
    margin: 0;
    color: var(--ink-muted);
    font-size: 11.5px;
    text-align: center;
    line-height: 1.8;
  }

  /* ---------- 推广奖励弹窗 ---------- */

  .referral-modal-backdrop {
    position: fixed;
    inset: 0;
    z-index: 60;
    display: grid;
    place-items: center;
    padding: 20px;
    background: rgba(5, 8, 6, .72);
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
  }

  .referral-modal-backdrop[hidden] { display: none; }

  .referral-modal {
    width: min(460px, 100%);
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-lg);
    background: linear-gradient(170deg, var(--panel-2), var(--panel));
    box-shadow: 0 60px 120px -60px rgba(0, 0, 0, .95), 0 0 0 1px rgba(62, 207, 142, .06);
    animation: referral-modal-enter .34s cubic-bezier(.22, .8, .3, 1) both;
  }

  .referral-modal-head {
    display: grid;
    grid-template-columns: 40px minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px;
    padding: 18px 20px;
    border-bottom: 1px solid var(--line);
  }

  .referral-modal-icon {
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    border: 1px solid var(--green-line);
    border-radius: var(--radius-sm);
    background: var(--green-soft);
    color: var(--green);
  }

  .referral-modal-icon svg { width: 20px; height: 20px; }

  .referral-modal-heading { display: grid; gap: 2px; }

  .referral-modal-kicker {
    color: var(--green);
    font-family: var(--mono);
    font-size: 9px;
    font-weight: 700;
    letter-spacing: .12em;
  }

  .referral-modal-heading strong { font-size: 15.5px; }

  .referral-modal-heading small { color: var(--ink-muted); font-size: 11.5px; }

  .referral-modal-close {
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--ink-muted);
    cursor: pointer;
  }

  .referral-modal-close:hover { border-color: var(--line-strong); color: var(--ink); }

  .referral-modal-close svg { width: 15px; height: 15px; }

  .referral-modal-body {
    display: grid;
    gap: 13px;
    padding: 18px 20px;
  }

  .referral-claude-reward {
    position: relative;
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px;
    padding: 13px;
    overflow: hidden;
    border: 1px solid var(--green-line);
    border-radius: var(--radius);
    background:
      radial-gradient(300px 110px at 100% 0, rgba(62, 207, 142, .15), transparent 70%),
      #0f2018;
  }

  .referral-claude-reward::after {
    content: "30 DAYS";
    position: absolute;
    right: 10px;
    bottom: -8px;
    color: rgba(62, 207, 142, .08);
    font-family: var(--mono);
    font-size: 34px;
    font-weight: 800;
    letter-spacing: .04em;
    pointer-events: none;
  }

  .referral-claude-models { display: grid; place-items: center; }

  .referral-claude-models b {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: var(--radius-sm);
    background: #f6f4ef;
    border: 1px solid rgba(255, 255, 255, .2);
  }

  .referral-claude-models b img { width: 25px; height: 25px; display: block; }

  .referral-claude-copy { display: grid; gap: 2px; min-width: 0; }

  .referral-claude-kicker {
    color: var(--green);
    font-family: var(--mono);
    font-size: 9px;
    font-weight: 700;
    letter-spacing: .1em;
  }

  .referral-claude-copy strong { font-size: 13.5px; }

  .referral-claude-copy small { color: var(--ink-muted); font-size: 11px; }

  .referral-claude-tag {
    padding: 3px 8px;
    border: 1px solid var(--amber-line);
    border-radius: 999px;
    background: var(--amber-soft);
    color: var(--amber);
    font-size: 10px;
    font-weight: 700;
    white-space: nowrap;
  }

  .referral-claude-lock {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--ink-muted);
    font-size: 11px;
  }

  .referral-quick-rewards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
  }

  .referral-quick-rewards span {
    display: grid;
    justify-items: center;
    gap: 2px;
    padding: 13px 8px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--inset);
  }

  .referral-quick-rewards strong {
    color: var(--green);
    font-family: var(--mono);
    font-size: 22px;
    font-weight: 700;
    line-height: 1.1;
  }

  .referral-quick-rewards small {
    color: var(--ink-muted);
    font-size: 10px;
  }

  .referral-quick-rewards b {
    margin-top: 3px;
    color: var(--ink);
    font-size: 11.5px;
    font-weight: 700;
  }

  .referral-validity-note {
    margin: 0;
    color: var(--ink-muted);
    font-size: 11px;
    line-height: 1.7;
    text-align: center;
  }

  .referral-modal-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 20px 18px;
    border-top: 1px solid var(--line);
  }

  .referral-modal-later {
    padding: 9px 14px;
    border: 0;
    background: none;
    color: var(--ink-muted);
    cursor: pointer;
    font-size: 12.5px;
    font-weight: 600;
  }

  .referral-modal-later:hover { color: var(--ink-soft); }

  .referral-modal-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 11px 18px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, #43d693, #1da96c);
    color: var(--green-deep);
    font-size: 13.5px;
    font-weight: 700;
    text-decoration: none;
    box-shadow: 0 14px 30px -18px rgba(62, 207, 142, .55);
  }

  .referral-modal-primary:hover { filter: brightness(1.06); }

  .referral-modal-primary svg { width: 15px; height: 15px; }

  /* ---------- 法务弹窗 ---------- */

  .legal-modal-backdrop {
    position: fixed;
    inset: 0;
    z-index: 70;
    display: grid;
    place-items: center;
    padding: 20px;
    background: rgba(5, 8, 6, .72);
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
  }

  .legal-modal-backdrop[hidden] { display: none; }

  .legal-modal {
    display: grid;
    grid-template-rows: auto minmax(0, 1fr) auto;
    width: min(540px, 100%);
    max-height: min(86vh, 700px);
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-lg);
    background: linear-gradient(170deg, var(--panel-2), var(--panel));
    box-shadow: 0 60px 120px -60px rgba(0, 0, 0, .95);
    animation: referral-modal-enter .34s cubic-bezier(.22, .8, .3, 1) both;
  }

  .legal-modal-head {
    display: grid;
    grid-template-columns: 40px minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px;
    padding: 18px 20px;
    border-bottom: 1px solid var(--line);
  }

  .legal-modal-icon {
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    border: 1px solid var(--green-line);
    border-radius: var(--radius-sm);
    background: var(--green-soft);
    color: var(--green);
  }

  .legal-modal-icon svg { width: 20px; height: 20px; }

  .legal-modal-heading { display: grid; gap: 2px; }

  .legal-modal-kicker {
    color: var(--green);
    font-family: var(--mono);
    font-size: 9px;
    font-weight: 700;
    letter-spacing: .12em;
  }

  .legal-modal-heading strong { font-size: 15.5px; }

  .legal-modal-heading small { color: var(--ink-muted); font-size: 11.5px; }

  .legal-modal-close {
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--ink-muted);
    cursor: pointer;
  }

  .legal-modal-close:hover { border-color: var(--line-strong); color: var(--ink); }

  .legal-modal-close svg { width: 15px; height: 15px; }

  .legal-modal-body {
    overflow-y: auto;
    display: grid;
    gap: 14px;
    padding: 18px 20px;
  }

  .legal-summary {
    display: grid;
    gap: 4px;
    padding: 13px 15px;
    border: 1px solid var(--green-line);
    border-radius: var(--radius);
    background: var(--green-soft);
  }

  .legal-summary-code {
    color: var(--green);
    font-family: var(--mono);
    font-size: 9px;
    font-weight: 700;
    letter-spacing: .12em;
  }

  .legal-summary strong { font-size: 13.5px; }

  .legal-summary p {
    margin: 0;
    color: var(--ink-soft);
    font-size: 12px;
    line-height: 1.65;
  }

  .legal-tabs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
    padding: 4px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: var(--inset);
  }

  .legal-tab {
    padding: 8px 10px;
    border: 0;
    border-radius: 6px;
    background: transparent;
    color: var(--ink-muted);
    cursor: pointer;
    font-size: 12.5px;
    font-weight: 600;
  }

  .legal-tab:hover { color: var(--ink-soft); }

  .legal-tab.is-active {
    background: var(--green-soft);
    color: var(--green);
    box-shadow: 0 0 0 1px var(--green-line);
    font-weight: 700;
  }

  .legal-panel[hidden] { display: none; }

  .legal-panel h3 {
    margin: 2px 0 10px;
    font-size: 13.5px;
    font-weight: 700;
  }

  .legal-list {
    display: grid;
    gap: 9px;
    margin: 0;
    padding: 0;
    list-style: none;
    counter-reset: legal;
  }

  .legal-list li {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 3px 10px;
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: rgba(235, 245, 238, .02);
    counter-increment: legal;
  }

  .legal-list li::before {
    content: counter(legal, decimal-leading-zero);
    grid-row: 1 / span 2;
    align-self: start;
    margin-top: 1px;
    color: var(--green);
    font-family: var(--mono);
    font-size: 10px;
    font-weight: 700;
  }

  .legal-list strong {
    font-size: 12.5px;
    color: var(--ink);
  }

  .legal-list span {
    grid-column: 2;
    color: var(--ink-muted);
    font-size: 12px;
    line-height: 1.7;
  }

  .legal-list a { color: var(--green); }

  .legal-privacy-highlight {
    display: grid;
    gap: 3px;
    margin-bottom: 10px;
    padding: 11px 13px;
    border: 1px solid var(--green-line);
    border-radius: var(--radius-sm);
    background: var(--green-soft);
  }

  .legal-privacy-highlight strong { color: var(--green); font-size: 12.5px; }

  .legal-privacy-highlight span { color: var(--ink-soft); font-size: 11.5px; }

  .legal-modal-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 20px 18px;
    border-top: 1px solid var(--line);
  }

  .legal-contact {
    color: var(--ink-muted);
    font-size: 12px;
    text-decoration: underline;
    text-underline-offset: 3px;
  }

  .legal-contact:hover { color: var(--ink-soft); }

  .legal-understand {
    padding: 10px 20px;
    border: 0;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, #43d693, #1da96c);
    color: var(--green-deep);
    cursor: pointer;
    font-size: 13px;
    font-weight: 700;
    box-shadow: 0 14px 30px -18px rgba(62, 207, 142, .55);
  }

  .legal-understand:hover { filter: brightness(1.06); }

  /* ---------- 复制成功提示 ---------- */

  .toast {
    position: fixed;
    bottom: 28px;
    left: 50%;
    z-index: 40;
    padding: 11px 20px;
    border: 1px solid var(--green-line);
    border-radius: 999px;
    background: rgba(15, 26, 19, .92);
    color: var(--green);
    font-size: 13px;
    font-weight: 700;
    box-shadow: 0 18px 40px -20px rgba(0, 0, 0, .8), 0 0 24px -8px rgba(62, 207, 142, .4);
    opacity: 0;
    pointer-events: none;
    transform: translate(-50%, 10px);
    transition: opacity .22s ease, transform .22s ease;
  }

  .toast.is-visible {
    opacity: 1;
    transform: translate(-50%, 0);
  }

  /* ---------- 教程页暗色修正 ----------
     docs.css 在本表之后加载且保持原样，这里用更高优先级修正
     只在暗色下才成立不了的三处；其余全靠 token 继承。 */

  /* docs.css 用 --ink 当 toast 底色，暗色下近白底配白字会糊 */
  body .docs-toast {
    border: 1px solid var(--green-line);
    background: rgba(15, 26, 19, .94);
    color: var(--green);
  }

  /* docs.css 的窄屏规则会拆掉 .step 卡片的左边框（旧版 steps 是分栏不是卡片） */
  body .docs-steps-grid .step { border: 1px solid var(--line) !important; }

  /* 教程页代码块在暗色下加一点对比 */
  body .docs pre { box-shadow: 0 1px 0 rgba(235, 245, 238, .04) inset; }

  /* ---------- 动画 ---------- */

  @keyframes caret-blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
  }

  @keyframes status-pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(.78); opacity: .65; }
  }

  @keyframes card-enter {
    from { opacity: 0; transform: translateY(14px); }
    to { opacity: 1; transform: translateY(0); }
  }

  @keyframes referral-modal-enter {
    from { opacity: 0; transform: translateY(14px) scale(.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
  }

  @keyframes spin {
    to { transform: rotate(360deg); }
  }

  @keyframes referral-nudge {
    0%, 100% { transform: rotate(0); }
    30% { transform: rotate(-3deg); }
    60% { transform: rotate(3deg); }
  }

  /* ---------- 响应式 ---------- */

  @media (max-width: 900px) {
    .hero {
      grid-template-columns: 1fr;
      max-width: 640px;
      margin: 0 auto;
      gap: 44px;
      padding-top: 52px;
    }

    .intro h1 { font-size: 54px; }

    .image-lab-entry { display: none; }

    .spec { display: none; }

    .steps,
    .lower,
    .foot { max-width: 640px; }

    .steps-grid { grid-template-columns: 1fr; }

    .panel-content { grid-template-columns: 1fr; gap: 8px; }
  }

  @media (max-width: 560px) {
    .container { width: calc(100% - 32px); }

    .nav { height: 58px; }

    .contact-nav-link { padding: 0 9px; font-size: 11px; }

    .status { padding: 0 10px; font-size: 11px; }

    .intro h1 { font-size: 42px; }

    .lede { font-size: 15px; }

    .hero { padding-top: 40px; gap: 36px; }

    .hero-image-launcher {
      width: 100%;
      grid-template-columns: 40px minmax(0, 1fr) auto 22px;
      gap: 10px;
    }

    .hero-referral-entry { width: 100%; }

    .card-head { padding: 15px 16px; }

    .route-picker { padding: 12px 16px 0; }

    .card-body { padding: 16px 16px 20px; }

    .route-option {
      position: relative;
      grid-template-columns: 36px minmax(0, 1fr);
      padding: 10px 12px;
    }

    .route-logo { width: 36px; height: 36px; }

    .route-logo.is-zai img { width: 24px; height: 24px; }
    .route-logo.is-grok img { width: 21px; height: 21px; }
    .route-logo.is-claude img { width: 21px; height: 21px; }
    .route-logo.is-gpt img { width: 20px; height: 20px; }

    .route-meta {
      position: absolute;
      top: 7px;
      right: 8px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .route-state { padding: 2px 7px; font-size: 8.5px; }

    .route-window-countdown { min-width: 7.4ch; }

    .route-ttl { font-size: 9.5px; }

    .route-name { padding-right: 86px; }

    .claim-policy { grid-template-columns: 1fr; gap: 6px; }

    .verification-lead { grid-template-columns: 34px minmax(0, 1fr); }

    .risk-verification-step { grid-template-columns: 1fr; justify-items: center; }

    .risk-verification-copy { justify-self: start; }

    .trust { grid-template-columns: 1fr; }

    .trust-item {
      justify-content: flex-start;
      padding: 10px 14px;
    }

    .trust-item + .trust-item {
      border-left: 0;
      border-top: 1px solid var(--line);
    }

    .success-actions { grid-template-columns: 1fr; }

    .key-value { font-size: 11.5px; }

    .card-foot {
      flex-direction: column;
      align-items: flex-start;
      gap: 8px;
      padding: 13px 16px;
    }

    .referral-modal-backdrop { padding: 14px; }

    .referral-modal-head,
    .referral-modal-body { padding: 15px 16px; }

    .referral-modal-actions { padding: 12px 16px 15px; }

    /* 法务弹窗变底部抽屉 */
    .legal-modal-backdrop {
      align-items: end;
      padding: 0;
      place-items: end stretch;
    }

    .legal-modal {
      width: 100%;
      max-height: 92vh;
      border-radius: 14px 14px 0 0;
      border-left: 0;
      border-right: 0;
      border-bottom: 0;
    }

    .legal-modal-head,
    .legal-modal-body { padding: 15px 16px; }

    .legal-modal-actions { padding: 12px 16px 18px; }

    .legal-list li { grid-template-columns: 1fr; }

    .legal-list li::before { grid-row: auto; }

    .legal-list span { grid-column: 1; }

    .foot { padding: 26px 0 34px; }
  }

  @media (max-width: 420px) {
    .route-picker {
      grid-template-columns: 1fr 1fr;
      gap: 6px;
      padding: 12px 12px 0;
    }

    .route-option {
      grid-template-columns: 1fr;
      justify-items: center;
      min-height: 76px;
      padding: 26px 8px 10px;
      text-align: center;
    }

    .route-logo { width: 32px; height: 32px; }

    .route-copy { justify-items: center; gap: 2px; }

    .route-name {
      padding-right: 0;
      font-size: 10.5px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      max-width: 100%;
    }

    .route-desc { display: none; }

    .route-meta { top: 5px; right: 5px; gap: 4px; }

    .route-ttl { display: none; }
  }

  @media (max-width: 360px) {
    .route-picker { gap: 5px; padding: 10px 10px 0; }

    .route-option { min-height: 70px; }

    .route-name { font-size: 9.5px; }

    .hero-image-launcher-new { display: none; }
  }

  @media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
      animation-duration: .01ms !important;
      animation-iteration-count: 1 !important;
      transition-duration: .01ms !important;
      scroll-behavior: auto !important;
    }
  }