/* ==========================================================================
   影语 AI · 官网样式表
   一套 tokens 管全站：颜色 / 字号 / 间距 / 圆角 / 阴影。
   页面里不写行内色值，改主题只动这里。
   ========================================================================== */

/* ---------- 1. tokens ---------- */
:root {
  /* 墨色系：Hero、页脚、深色区块 */
  --ink: #0f1117;
  --ink-2: #171a22;
  --ink-3: #232732;
  --ink-line: #2e323d;

  /* 正文色阶 */
  --text: #1b1f28;
  --text-2: #4c5362;
  --text-3: #7d8494;
  --text-inverse: #f3f2ee;
  --text-inverse-2: #a9aebd;

  /* 底色与描边 */
  --bg: #fbfaf7;
  --bg-2: #f4f2ec;
  --card: #ffffff;
  --line: #e8e5de;
  --line-soft: #f1eee8;

  /* 品牌：靛紫主色 + 琥珀辅助色（与客户端 tokens.css 同源） */
  --brand: #5b5bd6;
  --brand-hover: #4a49c6;
  --brand-soft: #eeeefe;
  --brand-line: #d8d8f8;
  --amber: #d99a3e;
  --amber-soft: #fdf5e6;
  --amber-line: #f0dcb6;
  --ok: #0f766e;
  --ok-soft: #ecfdf5;

  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 22px;

  --shadow-sm: 0 1px 2px rgba(15, 17, 23, 0.05);
  --shadow: 0 2px 4px rgba(15, 17, 23, 0.04), 0 14px 34px -18px rgba(15, 17, 23, 0.22);
  --shadow-lg: 0 30px 60px -30px rgba(15, 17, 23, 0.35);

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "HarmonyOS Sans SC",
    "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

  --wrap: 1180px;
  --nav-h: 68px;
}

/* ---------- 2. reset ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 16px);
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip; /* 兜底：任何残留的横向溢出都不允许出现滚动条 */
}

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -0.01em;
}

p { margin: 0; }

img, video, svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

button {
  font: inherit;
  color: inherit;
  border: 0;
  background: none;
  cursor: pointer;
}

table {
  border-collapse: collapse;
  width: 100%;
}

:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
  border-radius: 6px;
}

::selection {
  background: var(--brand);
  color: #fff;
}

/* ---------- 3. layout ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: clamp(64px, 8vw, 108px) 0;
}

.section--tight {
  padding: clamp(48px, 6vw, 76px) 0;
}

.section--alt {
  background: var(--bg-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section--dark {
  background: var(--ink);
  color: var(--text-inverse);
}

/* ---------- 4. 通用文字块 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand);
  background: var(--brand-soft);
  border: 1px solid var(--brand-line);
  border-radius: 99px;
  padding: 5px 14px;
}

.section--dark .eyebrow {
  color: #c9c8ff;
  background: rgba(91, 91, 214, 0.18);
  border-color: rgba(140, 140, 240, 0.35);
}

.h-section {
  font-size: clamp(26px, 3.6vw, 40px);
  margin-top: 18px;
}

.lede {
  margin-top: 16px;
  font-size: clamp(15px, 1.4vw, 17px);
  color: var(--text-2);
  max-width: 720px;
}

.section--dark .lede {
  color: var(--text-inverse-2);
}

.section-head {
  max-width: 820px;
}

.section-head--center {
  margin: 0 auto;
  text-align: center;
}

.section-head--center .lede {
  margin-left: auto;
  margin-right: auto;
}

.mono {
  font-family: var(--mono);
  font-size: 0.92em;
}

/* ---------- 5. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 46px;
  padding: 0 22px;
  border-radius: 99px;
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 700;
  white-space: nowrap;
  transition: transform 0.16s ease, background-color 0.16s ease, box-shadow 0.16s ease,
    border-color 0.16s ease;
}

.btn:active { transform: translateY(1px); }

.btn--primary {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 10px 24px -12px rgba(91, 91, 214, 0.8);
}

.btn--primary:hover {
  background: var(--brand-hover);
  box-shadow: 0 14px 30px -12px rgba(91, 91, 214, 0.9);
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.18);
  color: #fff;
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.14);
}

.btn--outline {
  background: #fff;
  border-color: var(--line);
  color: var(--text);
}

.btn--outline:hover {
  border-color: var(--brand-line);
  color: var(--brand);
}

.btn--sm {
  height: 36px;
  padding: 0 16px;
  font-size: 13.5px;
}

.btn svg { flex: none; }

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  font-size: 14.5px;
  color: var(--brand);
}

.link-arrow:hover { gap: 10px; }

/* ---------- 6. 顶部导航 ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 60;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: rgba(15, 17, 23, 0.72);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  transition: background 0.2s ease, border-color 0.2s ease;
}

.nav--light {
  background: rgba(251, 250, 247, 0.86);
  border-bottom-color: var(--line);
}

.nav__inner {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 17px;
  letter-spacing: 0.01em;
  color: #fff;
}

.nav--light .brand { color: var(--text); }

.brand__mark {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, #6f6ff0 0%, #4a49c6 55%, #2f2f7a 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35);
  flex: none;
}

.brand__mark svg { width: 18px; height: 18px; }

.brand__sub {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--text-3);
  margin-left: 2px;
}

.nav--light .brand__sub { color: var(--text-3); }
.nav .brand__sub { color: rgba(255, 255, 255, 0.45); }

.nav__links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.nav__links a {
  padding: 8px 14px;
  border-radius: 99px;
  font-size: 14.5px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.74);
  transition: color 0.15s ease, background 0.15s ease;
}

.nav__links a:hover { color: #fff; background: rgba(255, 255, 255, 0.08); }

.nav__links a[aria-current="page"] {
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
}

.nav--light .nav__links a { color: var(--text-2); }

.nav--light .nav__links a:hover {
  color: var(--text);
  background: var(--bg-2);
}

.nav--light .nav__links a[aria-current="page"] {
  color: var(--brand);
  background: var(--brand-soft);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: 8px;
}

.nav__login {
  font-size: 14.5px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.86);
  padding: 8px 6px;
}

.nav__login:hover { color: #fff; }
.nav--light .nav__login { color: var(--text-2); }
.nav--light .nav__login:hover { color: var(--brand); }

.nav__toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: #fff;
  align-items: center;
  justify-content: center;
  margin-left: auto;
}

.nav--light .nav__toggle {
  border-color: var(--line);
  color: var(--text);
}

.nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0;
  right: 0;
  z-index: 55;
  background: var(--ink-2);
  border-bottom: 1px solid var(--ink-line);
  padding: 12px 24px 22px;
}

.nav__mobile.is-open { display: block; }

.nav__mobile a {
  display: block;
  padding: 12px 4px;
  font-size: 16px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.86);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.nav__mobile a:last-of-type { border-bottom: 0; }

.nav__mobile .btn {
  width: 100%;
  margin-top: 14px;
}

/* ---------- 7. Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(900px 520px at 78% -8%, rgba(91, 91, 214, 0.42), transparent 62%),
    radial-gradient(700px 460px at 12% 8%, rgba(217, 154, 62, 0.16), transparent 60%),
    linear-gradient(180deg, #0d0f15 0%, #14161f 48%, #1a1c26 100%);
  color: var(--text-inverse);
  padding: calc(var(--nav-h) + 64px) 0 88px;
}

.hero::after {
  /* 细网格：让深色区块有工艺感，不用图片 */
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(720px 420px at 50% 6%, #000 20%, transparent 78%);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}

/* 关键：网格项默认 min-width:auto，会被截图这类大固有宽度内容撑爆，
   把容器顶出视口（移动端表现为整段文字被截掉右半边） */
.hero__inner > * {
  min-width: 0;
}

.hero h1 {
  margin-top: 22px;
  font-size: clamp(34px, 5.1vw, 60px);
  letter-spacing: -0.025em;
  line-height: 1.14;
}

.hero h1 em {
  font-style: normal;
  background: linear-gradient(96deg, #a5a4ff 0%, #d9b273 62%, #f0c88a 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__lede {
  margin-top: 20px;
  font-size: clamp(15px, 1.5vw, 17.5px);
  line-height: 1.85;
  color: #b9bec9;
  max-width: 560px;
}

.hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  color: #d8dbe3;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 99px;
  padding: 6px 14px;
}

.chip b { color: #fff; font-weight: 700; }

.hero__shot {
  position: relative;
}

.shot-frame {
  position: relative;
  border-radius: var(--radius-lg);
  padding: 10px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.13), rgba(255, 255, 255, 0.04));
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 40px 80px -40px rgba(0, 0, 0, 0.9);
}

.shot-frame img {
  width: 100%; /* 用确定宽度而不是 max-width：max-width 挡不住网格固有宽度计算 */
  border-radius: 14px;
}

.shot-frame__bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 4px 8px;
}

.shot-frame__bar i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.22);
}

.shot-frame__bar span {
  margin-left: 8px;
  font-size: 11.5px;
  color: rgba(255, 255, 255, 0.44);
  font-family: var(--mono);
}

.float-note {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 12px;
  background: rgba(23, 26, 34, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.13);
  box-shadow: 0 20px 40px -20px rgba(0, 0, 0, 0.8);
  font-size: 12.5px;
  color: #d6dae4;
}

.float-note b { color: #fff; }
.float-note i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #4ade80;
  box-shadow: 0 0 0 4px rgba(74, 222, 128, 0.15);
}

.float-note--a { left: -18px; bottom: 42px; }
.float-note--b { right: -10px; top: -16px; }
.float-note--b i { background: var(--amber); box-shadow: 0 0 0 4px rgba(217, 154, 62, 0.16); }

/* ---------- 8. 事实条 ---------- */
.facts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.facts__item {
  background: var(--card);
  padding: 26px 22px;
}

.facts__item b {
  display: block;
  font-size: clamp(24px, 2.6vw, 32px);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
}

.facts__item b span {
  font-size: 0.55em;
  font-weight: 700;
  color: var(--text-3);
  margin-left: 4px;
}

.facts__item p {
  margin-top: 4px;
  font-size: 13.5px;
  color: var(--text-3);
}

/* ---------- 9. 卡片网格 ---------- */
.grid {
  display: grid;
  gap: 18px;
  margin-top: 40px;
}

.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 24px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.card--hover:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: var(--brand-line);
}

.card__icon {
  width: 40px;
  height: 40px;
  border-radius: 11px;
  display: grid;
  place-items: center;
  background: var(--brand-soft);
  color: var(--brand);
  border: 1px solid var(--brand-line);
  margin-bottom: 16px;
}

.card__icon--amber {
  background: var(--amber-soft);
  color: #b47c22;
  border-color: var(--amber-line);
}

.card__icon svg { width: 20px; height: 20px; }

.card h3 {
  font-size: 17.5px;
  letter-spacing: -0.005em;
}

.card p {
  margin-top: 8px;
  font-size: 14.5px;
  color: var(--text-2);
  line-height: 1.78;
}

.card__meta {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  color: var(--text-3);
}

/* ---------- 10. 七步流水线 ---------- */
.flow {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 12px;
  margin-top: 44px;
  counter-reset: flow;
}

.flow__step {
  position: relative;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px 16px 20px;
  counter-increment: flow;
}

.flow__step::before {
  content: counter(flow, decimal-leading-zero);
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--brand);
  margin-bottom: 10px;
}

.flow__step::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -7px;
  width: 12px;
  height: 1px;
  background: var(--line);
}

.flow__step:last-child::after { display: none; }

.flow__step b {
  display: block;
  font-size: 15px;
  font-weight: 800;
}

.flow__step p {
  margin-top: 6px;
  font-size: 12.8px;
  line-height: 1.65;
  color: var(--text-3);
}

.flow__cost {
  display: inline-block;
  margin-top: 10px;
  font-size: 11.5px;
  font-family: var(--mono);
  color: #b47c22;
  background: var(--amber-soft);
  border: 1px solid var(--amber-line);
  border-radius: 6px;
  padding: 1px 7px;
}

.flow__cost--free {
  color: var(--ok);
  background: var(--ok-soft);
  border-color: #bfe6da;
}

/* ---------- 11. 图文交替 ---------- */
.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
}

.split--flip .split__media { order: -1; }

.split__body h3 {
  font-size: clamp(22px, 2.6vw, 30px);
  margin-top: 14px;
}

.split__body p {
  margin-top: 14px;
  color: var(--text-2);
  font-size: 15.5px;
}

.split__media img {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.check {
  margin-top: 20px;
  display: grid;
  gap: 10px;
}

.check li {
  display: flex;
  gap: 10px;
  font-size: 14.8px;
  color: var(--text-2);
}

.check li::before {
  content: "";
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 4px;
  border-radius: 50%;
  background: var(--brand-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235b5bd6' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E") center / 11px no-repeat;
  border: 1px solid var(--brand-line);
}

.check b { color: var(--text); font-weight: 700; }

/* ---------- 12. 案例 ---------- */
.case {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
  margin-top: 40px;
}

.case__video {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: #000;
  border: 1px solid var(--ink-line);
  box-shadow: var(--shadow-lg);
}

.case__video video {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.case__tag {
  position: absolute;
  left: 14px;
  top: 14px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #fff;
  background: rgba(15, 17, 23, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 99px;
  padding: 4px 12px;
  backdrop-filter: blur(6px);
}

.case__body h3 {
  font-size: clamp(22px, 2.7vw, 30px);
}

.case__body p {
  margin-top: 14px;
  color: var(--text-2);
  font-size: 15.5px;
}

.case__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 24px;
  padding: 18px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.case__stats b {
  display: block;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.case__stats span {
  font-size: 12.5px;
  color: var(--text-3);
}

/* ---------- 13. 定价 ---------- */
.plans {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 44px;
}

.plan {
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 22px;
  box-shadow: var(--shadow-sm);
}

.plan--featured {
  border-color: var(--brand);
  box-shadow: 0 20px 44px -26px rgba(91, 91, 214, 0.55);
  position: relative;
}

.plan__flag {
  position: absolute;
  top: -12px;
  left: 22px;
  font-size: 11.5px;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: #fff;
  background: var(--brand);
  border-radius: 99px;
  padding: 3px 12px;
}

.plan__name {
  font-size: 16px;
  font-weight: 800;
}

.plan__desc {
  margin-top: 4px;
  font-size: 13px;
  color: var(--text-3);
  min-height: 20px;
}

.plan__price {
  margin-top: 18px;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.plan__price b {
  font-size: 34px;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.plan__price i {
  font-style: normal;
  font-size: 13px;
  color: var(--text-3);
}

.plan__credit {
  margin-top: 6px;
  font-size: 13px;
  color: var(--brand);
  font-weight: 700;
}

.plan__list {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line-soft);
  display: grid;
  gap: 9px;
  flex: 1;
}

.plan__list li {
  display: flex;
  gap: 8px;
  font-size: 13.8px;
  color: var(--text-2);
  line-height: 1.6;
}

.plan__list li::before {
  content: "";
  flex: none;
  width: 5px;
  height: 5px;
  margin-top: 9px;
  border-radius: 50%;
  background: var(--brand);
}

.plan .btn {
  margin-top: 22px;
  width: 100%;
}

/* 表格 */
.table-wrap {
  margin-top: 28px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.table-scroll { overflow-x: auto; }

.tbl {
  min-width: 620px;
  font-size: 14px;
}

.tbl th {
  text-align: left;
  font-weight: 700;
  font-size: 13px;
  color: var(--text-3);
  background: var(--bg-2);
  padding: 12px 18px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.tbl td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--text-2);
  vertical-align: top;
}

.tbl tr:last-child td { border-bottom: 0; }

.tbl td b { color: var(--text); }

.tbl .num {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text);
  white-space: nowrap;
}

.tag {
  display: inline-block;
  font-size: 11.8px;
  font-weight: 700;
  border-radius: 6px;
  padding: 1px 8px;
  white-space: nowrap;
}

.tag--brand { color: var(--brand); background: var(--brand-soft); border: 1px solid var(--brand-line); }
.tag--ok { color: var(--ok); background: var(--ok-soft); border: 1px solid #bfe6da; }
.tag--amber { color: #b47c22; background: var(--amber-soft); border: 1px solid var(--amber-line); }
.tag--muted { color: var(--text-3); background: var(--bg-2); border: 1px solid var(--line); }

/* ---------- 14. FAQ ---------- */
.faq {
  margin-top: 34px;
  border-top: 1px solid var(--line);
}

.faq details {
  border-bottom: 1px solid var(--line);
}

.faq summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 4px;
  font-weight: 700;
  font-size: 16px;
}

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

.faq summary::after {
  content: "";
  margin-left: auto;
  width: 12px;
  height: 12px;
  border-right: 2px solid var(--text-3);
  border-bottom: 2px solid var(--text-3);
  transform: rotate(45deg) translateY(-2px);
  transition: transform 0.2s ease;
  flex: none;
}

.faq details[open] summary::after {
  transform: rotate(-135deg) translateY(-2px);
}

.faq details p {
  padding: 0 32px 22px 4px;
  color: var(--text-2);
  font-size: 14.8px;
  max-width: 900px;
}

/* ---------- 15. CTA 带 ---------- */
.cta-band {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(700px 320px at 82% 0%, rgba(91, 91, 214, 0.55), transparent 62%),
    linear-gradient(120deg, #14161f 0%, #1b1d29 60%, #221f2e 100%);
  color: #fff;
  padding: clamp(36px, 5vw, 56px);
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) auto;
  gap: 28px;
  align-items: center;
}

.cta-band h2 {
  font-size: clamp(24px, 3.2vw, 34px);
}

.cta-band p {
  margin-top: 12px;
  color: #b9bec9;
  font-size: 15px;
  max-width: 520px;
}

.cta-band .btn-row { margin-top: 0; }

/* ---------- 16. 页脚 ---------- */
.footer {
  background: var(--ink);
  color: var(--text-inverse-2);
  padding: 64px 0 28px;
  border-top: 1px solid var(--ink-line);
}

.footer__top {
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: 40px;
}

.footer__brand p {
  margin-top: 14px;
  font-size: 13.6px;
  line-height: 1.8;
  max-width: 320px;
  color: #8d93a2;
}

.footer__brand .brand { color: #fff; }

.footer h4 {
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #6f7686;
  font-weight: 700;
}

.footer ul {
  margin-top: 16px;
  display: grid;
  gap: 10px;
}

.footer ul a {
  font-size: 14px;
  color: #b3b8c5;
}

.footer ul a:hover { color: #fff; }

.footer__bottom {
  margin-top: 48px;
  padding-top: 22px;
  border-top: 1px solid var(--ink-line);
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  align-items: center;
  font-size: 12.8px;
  color: #767d8c;
}

.footer__bottom a { color: #9aa1b0; }
.footer__bottom a:hover { color: #fff; }

.footer__bottom .spacer { margin-left: auto; }

/* ---------- 17. 子页头 ---------- */
.page-head {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(760px 360px at 84% -20%, rgba(91, 91, 214, 0.34), transparent 62%),
    linear-gradient(180deg, #0f1117 0%, #161822 100%);
  color: var(--text-inverse);
  padding: calc(var(--nav-h) + 60px) 0 64px;
}

.page-head h1 {
  margin-top: 18px;
  font-size: clamp(30px, 4.2vw, 48px);
  letter-spacing: -0.02em;
}

.page-head .lede {
  color: #b3b8c5;
}

.page-head__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

/* ---------- 18. 长文排版（隐私/条款） ---------- */
.prose {
  max-width: 820px;
}

.prose h2 {
  font-size: 21px;
  margin-top: 44px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.prose h2:first-of-type { margin-top: 0; padding-top: 0; border-top: 0; }

.prose h3 {
  font-size: 16.5px;
  margin-top: 26px;
}

.prose p {
  margin-top: 12px;
  color: var(--text-2);
  font-size: 15px;
  line-height: 1.85;
}

.prose ul {
  margin-top: 12px;
  display: grid;
  gap: 8px;
}

.prose ul li {
  position: relative;
  padding-left: 18px;
  color: var(--text-2);
  font-size: 15px;
  line-height: 1.8;
}

.prose ul li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 12px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--text-3);
}

.prose .note {
  margin-top: 20px;
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  background: var(--amber-soft);
  border: 1px solid var(--amber-line);
  font-size: 14px;
  color: #7a5417;
  line-height: 1.75;
}

.prose time {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  color: var(--text-3);
}

/* ---------- 19. 提示块 / 免责 ---------- */
.notice {
  display: flex;
  gap: 14px;
  padding: 18px 20px;
  border-radius: var(--radius-sm);
  background: var(--amber-soft);
  border: 1px solid var(--amber-line);
  font-size: 14px;
  line-height: 1.75;
  color: #7a5417;
}

.notice--info {
  background: var(--brand-soft);
  border-color: var(--brand-line);
  color: #3a3a8c;
}

.notice b { color: inherit; }

/* ---------- 20. 动效 ----------
   安全模式：默认可见。只有 JS 确认 IntersectionObserver 可用后，
   才给元素加 is-pending（藏起来等入场）。JS 挂了内容也不会消失。 */
.reveal.is-pending {
  opacity: 0;
  transform: translateY(18px);
}

.reveal {
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal.is-pending { opacity: 1; transform: none; }
  .card--hover:hover { transform: none; }
  * { animation-duration: 0.001ms !important; }
}

/* ---------- 21. 响应式 ---------- */
@media (max-width: 1080px) {
  .flow { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .flow__step::after { display: none; }
  .plans { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .facts { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 940px) {
  .nav__links { display: none; }
  .nav__login { display: none; }
  .nav__actions .btn { display: none; }
  .nav__toggle { display: inline-flex; }

  .hero { padding-top: calc(var(--nav-h) + 44px); }
  .hero__inner { grid-template-columns: 1fr; }
  .hero__shot { margin-top: 8px; }
  .float-note--a { left: 6px; bottom: 14px; }
  .float-note--b { right: 6px; top: -12px; }

  .split { grid-template-columns: 1fr; }
  .split--flip .split__media { order: 0; }
  .case { grid-template-columns: 1fr; }
  .grid--3, .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cta-band { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer__brand { grid-column: 1 / -1; }
  .section-head--center { text-align: left; }
  .section-head--center .lede { margin-left: 0; }
}

@media (max-width: 620px) {
  body { font-size: 15.5px; }
  .wrap { padding: 0 18px; }
  .flow { grid-template-columns: 1fr 1fr; }
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .plans { grid-template-columns: 1fr; }
  .facts { grid-template-columns: 1fr 1fr; }
  .facts__item { padding: 18px 16px; }
  .case__stats { grid-template-columns: 1fr 1fr; }
  .footer__top { grid-template-columns: 1fr; }
  .footer__bottom .spacer { margin-left: 0; flex-basis: 100%; }
  .btn { width: 100%; }
  .btn-row { flex-direction: column; }
  .float-note { display: none; }
}

@media (max-width: 380px) {
  .flow { grid-template-columns: 1fr; }
}