/* ============================================================
   脉冲波 · maichongbo.com
   设计基调：冷色极简 + 信号感。主色靛蓝，点缀青，波形是品牌符号。
   独立静态站，不依赖任何框架和后端。
   ============================================================ */

/* ---------- 设计令牌 ---------- */
:root {
  --bg: #f6f7fb;
  --bg-2: #eef1f8;
  --card: #ffffff;
  --ink: #14161c;
  --ink-2: #3d4351;
  --ink-3: #565d6d;
  --muted: #6f7686;
  --muted-2: #9aa0ad;
  --line: #e8eaf1;
  --line-2: #eff1f6;

  --brand: #4f46e5;
  --brand-deep: #3b34c9;
  --brand-2: #06b6d4;
  --brand-soft: #eef0ff;
  --brand-line: #dcdfFB;

  --ok: #0ea472;
  --ok-soft: #e7f7f0;
  --warn: #d97706;
  --warn-soft: #fff8ed;

  --r-sm: 12px;
  --r-md: 18px;
  --r-lg: 26px;
  --r-xl: 34px;

  --shadow-1: 0 1px 2px rgba(20, 22, 28, .04), 0 8px 24px -12px rgba(30, 41, 79, .12);
  --shadow-2: 0 2px 6px rgba(20, 22, 28, .04), 0 26px 60px -28px rgba(30, 41, 79, .26);
  --ease: cubic-bezier(.22, 1, .36, 1);

  --font: -apple-system, BlinkMacSystemFont, "SF Pro SC", "PingFang SC",
          "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

/* ---------- 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; }
h1, h2, h3, h4 { margin: 0; letter-spacing: -.02em; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 50px;
  padding: 0 26px;
  border: 1px solid transparent;
  border-radius: 14px;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: -.01em;
  white-space: nowrap;
  transition: transform .2s var(--ease), background .2s, border-color .2s, box-shadow .2s, color .2s;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--brand) 0%, #6366f1 100%);
  color: #fff;
  box-shadow: 0 10px 26px -12px rgba(79, 70, 229, .7);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--brand-deep) 0%, var(--brand) 100%);
  box-shadow: 0 14px 32px -12px rgba(79, 70, 229, .8);
}

.btn-secondary {
  background: #fff;
  border-color: var(--line);
  color: var(--ink-2);
  box-shadow: var(--shadow-1);
}

.btn-secondary:hover { border-color: #d8dcea; color: var(--ink); }

.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--muted);
  height: 46px;
}

.btn-ghost:hover { background: #fff; color: var(--ink-2); }

.btn-sm { height: 40px; padding: 0 18px; font-size: 13.5px; border-radius: 12px; }
.btn-wide { width: 100%; }

/* ---------- 顶栏 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(246, 247, 251, .82);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s, background .25s;
}

.site-header.is-stuck {
  border-bottom-color: var(--line);
  background: rgba(255, 255, 255, .88);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 18px;
  height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -.03em;
  flex-shrink: 0;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 11px;
  background: linear-gradient(140deg, var(--brand) 0%, var(--brand-2) 100%);
  display: grid;
  place-items: center;
  box-shadow: 0 6px 16px -8px rgba(79, 70, 229, .8);
}

.brand-mark svg { width: 19px; height: 19px; }

.brand-sub {
  font-size: 11px;
  font-weight: 500;
  color: var(--muted-2);
  letter-spacing: .04em;
  padding-left: 9px;
  margin-left: 2px;
  border-left: 1px solid var(--line);
  align-self: center;
  display: none;
}

.nav-switch {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px;
  box-shadow: var(--shadow-1);
}

.nav-switch a {
  padding: 7px 15px;
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 550;
  color: var(--muted);
  transition: color .2s, background .2s;
}

.nav-switch a:hover { color: var(--ink); }
.nav-switch a.is-active { background: var(--ink); color: #fff; }

.header-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }

.header-link {
  font-size: 13.5px;
  font-weight: 550;
  color: var(--muted);
  transition: color .2s;
}

.header-link:hover { color: var(--brand); }

/* ---------- 首屏 ---------- */
.hero { position: relative; padding: 58px 0 26px; overflow: hidden; }

/* 波形背景：品牌符号。左侧用遮罩淡出，避免干扰正文可读性 */
.hero-wave {
  position: absolute;
  inset: -12% -8% auto -8%;
  height: 640px;
  pointer-events: none;
  opacity: .62;
  z-index: 0;
  -webkit-mask-image: linear-gradient(100deg, transparent 0%, rgba(0, 0, 0, .12) 34%, #000 70%);
  mask-image: linear-gradient(100deg, transparent 0%, rgba(0, 0, 0, .12) 34%, #000 70%);
}

.hero-wave svg { width: 100%; height: 100%; }

.hero-glow {
  position: absolute;
  top: -180px;
  right: -120px;
  width: 620px;
  height: 620px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(6, 182, 212, .16) 0%, rgba(79, 70, 229, .10) 42%, transparent 68%);
  pointer-events: none;
  z-index: 0;
}

.hero .container { position: relative; z-index: 1; }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
  gap: 46px;
  align-items: start;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  font-weight: 550;
  color: var(--brand);
  background: var(--brand-soft);
  border: 1px solid var(--brand-line);
  padding: 6px 13px;
  border-radius: 999px;
  letter-spacing: .01em;
}

.eyebrow i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand-2);
  box-shadow: 0 0 0 3px rgba(6, 182, 212, .18);
}

.hero-title {
  margin-top: 20px;
  font-size: clamp(34px, 5.2vw, 54px);
  line-height: 1.1;
  font-weight: 750;
  letter-spacing: -.045em;
}

.hero-title em {
  font-style: normal;
  background: linear-gradient(115deg, var(--brand) 0%, var(--brand-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-lead {
  margin-top: 20px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--muted);
  max-width: 480px;
}

.hero-lead strong { color: var(--ink-2); font-weight: 650; }

.points {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 11px 18px;
  max-width: 470px;
}

.point {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 13.5px;
  color: var(--ink-2);
  font-weight: 500;
}

.check-dot {
  width: 19px;
  height: 19px;
  border-radius: 50%;
  background: var(--ok-soft);
  color: var(--ok);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.check-dot svg { width: 11px; height: 11px; }

.hero-actions {
  margin-top: 30px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-trust {
  margin-top: 16px;
  font-size: 12.5px;
  color: var(--muted-2);
}

.hero-trust b { color: var(--ink-2); font-weight: 650; }

/* ---------- 首屏价格速览卡 ---------- */
.quick-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-2);
  padding: 22px 22px 20px;
  position: relative;
}

.quick-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  border-radius: var(--r-lg) var(--r-lg) 0 0;
  background: linear-gradient(90deg, var(--brand) 0%, var(--brand-2) 100%);
}

.quick-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-2);
}

.tag {
  display: inline-flex;
  align-items: center;
  height: 21px;
  padding: 0 8px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0;
  background: var(--brand-soft);
  color: var(--brand);
  white-space: nowrap;
}

.tag-neutral { background: #f1f3f8; color: var(--muted); }
.tag-ok { background: var(--ok-soft); color: var(--ok); }

.quick-sub {
  margin-top: 8px;
  font-size: 12px;
  color: var(--muted-2);
}

.quick-rows { margin-top: 14px; display: grid; gap: 3px; }

.quick-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 12px;
  border-radius: 13px;
  transition: background .18s;
}

.quick-row:hover { background: #f7f8fc; }

.quick-row.is-pick { background: var(--brand-soft); }
.quick-row.is-pick:hover { background: #e7eaff; }

.quick-name {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
}

.quick-desc {
  display: block;
  margin-top: 2px;
  font-size: 11.5px;
  color: var(--muted-2);
  font-weight: 400;
}

.quick-price {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -.02em;
  white-space: nowrap;
}

.quick-price span { font-size: 11px; font-weight: 500; color: var(--muted-2); margin-left: 1px; }

.quick-foot {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line-2);
}

.quick-note {
  margin-top: 11px;
  text-align: center;
  font-size: 11.5px;
  color: var(--muted-2);
}

/* ---------- 实时条 ---------- */
.live { margin-top: 40px; }

.live-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 13px 18px;
  box-shadow: var(--shadow-1);
  overflow: hidden;
}

.live-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  white-space: nowrap;
  flex-shrink: 0;
}

.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 0 3px rgba(14, 164, 114, .16);
  animation: pulse 2.2s infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(14, 164, 114, .16); }
  50% { box-shadow: 0 0 0 6px rgba(14, 164, 114, .06); }
}

.marquee { overflow: hidden; flex: 1; mask-image: linear-gradient(90deg, transparent, #000 4%, #000 96%, transparent); }
.track { display: flex; gap: 34px; width: max-content; animation: slide 34s linear infinite; }

@keyframes slide {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.live-item { font-size: 12.5px; color: var(--muted-2); white-space: nowrap; }
.live-item b { color: var(--ink-2); font-weight: 650; }

/* ---------- 区块通用 ---------- */
.section { padding: 76px 0; }
.section-tight { padding: 10px 0; }

.section-head { max-width: 620px; margin-bottom: 34px; }

.section-head h2 {
  margin-top: 14px;
  font-size: clamp(25px, 3.4vw, 34px);
  line-height: 1.24;
  font-weight: 720;
  letter-spacing: -.035em;
}

.section-head p {
  margin-top: 11px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.center-cta { margin-top: 34px; text-align: center; }
.center-cta .muted { font-size: 13.5px; color: var(--muted); margin-bottom: 15px; }

summary-line, .summary-line {
  margin-top: 30px;
  text-align: center;
  font-size: 13.5px;
  color: var(--muted);
}

.summary-line strong { color: var(--brand); font-weight: 700; }

/* ---------- 平台切换 ---------- */
.platform-tabs {
  display: inline-flex;
  gap: 5px;
  padding: 5px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  box-shadow: var(--shadow-1);
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.ptab {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 17px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  font-size: 13.5px;
  font-weight: 560;
  color: var(--muted);
  transition: background .2s, color .2s;
}

.ptab:hover { color: var(--ink); background: #f5f6fa; }

.ptab.is-on {
  background: var(--ink);
  color: #fff;
}

.ptab-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  opacity: .45;
}

.ptab.is-on .ptab-dot { opacity: 1; background: var(--brand-2); }

/* ---------- 套餐卡片 ---------- */
.plans {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(258px, 1fr));
  gap: 18px;
}

/* 筛选后卡片变少时，收窄并居中，避免卡片挤在左边留一大片空白 */
.plans.is-filtered {
  grid-template-columns: repeat(auto-fit, minmax(258px, 280px));
  justify-content: center;
}

.plan-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 24px 22px 22px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-1);
  transition: transform .3s var(--ease), box-shadow .3s, border-color .3s;
  position: relative;
}

.plan-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-2);
  border-color: #dde1f0;
}

.plan-card.is-featured {
  border-color: var(--brand-line);
  box-shadow: 0 0 0 1px var(--brand-line), 0 24px 54px -26px rgba(79, 70, 229, .34);
}

.plan-card.is-featured::after {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  border-radius: var(--r-lg) var(--r-lg) 0 0;
  background: linear-gradient(90deg, var(--brand) 0%, var(--brand-2) 100%);
}

.plan-card h3 {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 16.5px;
  font-weight: 680;
  letter-spacing: -.025em;
}

.plan-meta {
  margin-top: 5px;
  font-size: 12.5px;
  color: var(--muted-2);
}

.big-price {
  margin-top: 16px;
  display: flex;
  align-items: baseline;
  gap: 2px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted-2);
}

.big-price em {
  font-style: normal;
  font-size: 34px;
  font-weight: 750;
  letter-spacing: -.04em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.big-price small { font-size: 12px; font-weight: 500; color: var(--muted-2); margin-left: 2px; }

.fit {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
  display: grid;
  gap: 8px;
}

.fit li {
  position: relative;
  padding-left: 17px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-3);
}

.fit li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: var(--brand-2);
  opacity: .65;
}

.plan-line {
  margin-top: 14px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted-2);
}

.plan-card .btn { margin-top: auto; }
.plan-card .fit + .plan-line { margin-bottom: 14px; }
.plan-line + .btn { margin-top: 14px; }

/* ---------- 四宫格流程 ---------- */
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.g-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 22px 20px;
  box-shadow: var(--shadow-1);
}

.g-num {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--brand);
  background: var(--brand-soft);
  width: 30px;
  height: 30px;
  border-radius: 9px;
  display: grid;
  place-items: center;
  margin-bottom: 14px;
}

.g-card h3 { font-size: 14.5px; font-weight: 650; }

.g-card p {
  margin-top: 7px;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 保障 ---------- */
.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.trust-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 22px 20px;
  box-shadow: var(--shadow-1);
}

.trust-item strong {
  display: block;
  font-size: 15px;
  font-weight: 680;
  letter-spacing: -.02em;
  color: var(--ink);
}

.trust-item span {
  display: block;
  margin-top: 7px;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 提示条 ---------- */
.note-box {
  display: grid;
  gap: 10px;
  background: var(--warn-soft);
  border: 1px solid #f6e3c4;
  border-radius: var(--r-md);
  padding: 18px 20px;
}

.note-box .note-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 650;
  color: #8a5a12;
}

.note-item {
  display: flex;
  gap: 9px;
  font-size: 12.5px;
  line-height: 1.8;
  color: #8a5a12;
}

.note-item b { font-weight: 700; }

.note-dot {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #f3d9ae;
  color: #8a5a12;
  font-size: 10px;
  font-weight: 700;
  display: grid;
  place-items: center;
  margin-top: 3px;
}

/* ---------- FAQ ---------- */
.faq-shell { display: grid; gap: 10px; }

.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  transition: border-color .2s, box-shadow .2s;
}

.faq-item.open { border-color: var(--brand-line); box-shadow: var(--shadow-1); }

.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 20px;
  background: none;
  border: 0;
  text-align: left;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -.01em;
  color: var(--ink);
}

.faq-plus {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #f3f4f9;
  color: var(--muted);
  display: grid;
  place-items: center;
  transition: transform .28s var(--ease), background .2s, color .2s;
}

.faq-plus svg { width: 11px; height: 11px; }
.faq-item.open .faq-plus { transform: rotate(45deg); background: var(--brand); color: #fff; }

.faq-a {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .32s var(--ease);
}

.faq-item.open .faq-a { grid-template-rows: 1fr; }
.faq-a > div { overflow: hidden; }
.faq-a p {
  padding: 0 20px 19px;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 终转化 ---------- */
.final-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-xl);
  background: #171a24;
  color: #fff;
  padding: 44px 44px 40px;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
  gap: 40px;
  align-items: center;
}

.final-card::before {
  content: "";
  position: absolute;
  top: -140px;
  right: -80px;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(6, 182, 212, .22) 0%, rgba(79, 70, 229, .18) 45%, transparent 70%);
}

.final-card > * { position: relative; z-index: 1; }

.final-card h2 { font-size: clamp(25px, 3.2vw, 33px); font-weight: 720; letter-spacing: -.035em; }

.final-card .final-sub {
  margin-top: 11px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .62);
}

.final-points {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.final-point {
  font-size: 12.5px;
  padding: 6px 13px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .1);
  color: rgba(255, 255, 255, .82);
}

.final-note {
  margin-top: 18px;
  font-size: 12px;
  color: rgba(255, 255, 255, .45);
  text-align: center;
}

.final-box {
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: var(--r-md);
  padding: 22px;
  backdrop-filter: blur(6px);
}

.final-box .btn-primary { box-shadow: none; }
.final-box .btn-secondary {
  background: rgba(255, 255, 255, .1);
  border-color: rgba(255, 255, 255, .16);
  color: #fff;
  box-shadow: none;
}
.final-box .btn-secondary:hover { background: rgba(255, 255, 255, .16); border-color: rgba(255, 255, 255, .24); color: #fff; }
.final-box .btn + .btn { margin-top: 10px; }

.final-box-title {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 13.5px;
  font-weight: 650;
  margin-bottom: 4px;
}

.final-box ul { margin: 12px 0 18px; display: grid; gap: 7px; }
.final-box li {
  font-size: 12.5px;
  color: rgba(255, 255, 255, .66);
  padding-left: 16px;
  position: relative;
}
.final-box li::before {
  content: "";
  position: absolute;
  left: 2px; top: 8px;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--brand-2);
}

/* ---------- 页脚 ---------- */
.site-footer {
  margin-top: 76px;
  padding: 44px 0 34px;
  border-top: 1px solid var(--line);
  background: #fff;
}

.footer-grid {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -.03em;
}

.footer-sub {
  margin-top: 10px;
  font-size: 12.5px;
  color: var(--muted-2);
}

.footer-links {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--muted);
}

.footer-links a:hover { color: var(--brand); }

.disclaimer {
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid var(--line-2);
  font-size: 11.5px;
  line-height: 1.9;
  color: var(--muted-2);
}

/* ---------- 移动底栏 ---------- */
.mobile-bar {
  display: none;
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 70;
  padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
  gap: 8px;
  background: rgba(255, 255, 255, .94);
  backdrop-filter: blur(14px);
  border-top: 1px solid var(--line);
}

.mobile-bar .btn { flex: 1; height: 46px; font-size: 14px; }

/* ---------- 微信弹窗 ---------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal.is-open { display: flex; }

.modal-mask {
  position: absolute;
  inset: 0;
  background: rgba(18, 20, 27, .5);
  backdrop-filter: blur(4px);
  animation: fadeIn .22s var(--ease);
}

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal-card {
  position: relative;
  width: 100%;
  max-width: 380px;
  background: #fff;
  border-radius: var(--r-lg);
  padding: 28px 26px 24px;
  text-align: center;
  box-shadow: 0 40px 90px -30px rgba(10, 14, 30, .5);
  animation: popIn .3s var(--ease);
}

@keyframes popIn {
  from { opacity: 0; transform: translateY(14px) scale(.97); }
  to { opacity: 1; transform: none; }
}

.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: 50%;
  background: #f3f4f9;
  color: var(--muted);
  font-size: 16px;
  line-height: 1;
  display: grid;
  place-items: center;
  transition: background .2s, color .2s;
}

.modal-close:hover { background: #e9ebf3; color: var(--ink); }

.modal-card h3 { font-size: 18px; font-weight: 700; letter-spacing: -.03em; }

.modal-card .modal-sub {
  margin-top: 7px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

.qr-wrap {
  margin: 20px auto 0;
  width: 190px;
  padding: 10px;
  border-radius: var(--r-md);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-1);
}

.qr-wrap img { width: 100%; height: auto; border-radius: 10px; }

.wxid-row {
  margin-top: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: #f7f8fc;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 12px;
}

.wxid-label { font-size: 11.5px; color: var(--muted-2); }

.wxid-value {
  font-family: var(--mono);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: .02em;
}

.copy-btn {
  border: 0;
  background: var(--brand-soft);
  color: var(--brand);
  font-size: 11.5px;
  font-weight: 600;
  padding: 5px 10px;
  border-radius: 8px;
  transition: background .2s;
}

.copy-btn:hover { background: #e2e6ff; }

.modal-tip {
  margin-top: 14px;
  font-size: 11.5px;
  line-height: 1.7;
  color: var(--muted-2);
}

/* ---------- 滚动出现 ---------- */
/* 默认完全可见：万一 JS 没加载或执行失败，页面照样能看，不会白屏 */
.reveal {
  opacity: 1;
  transform: none;
  transition: opacity .6s var(--ease), transform .6s var(--ease);
  transition-delay: var(--d, 0ms);
}

/* 只有 JS 正常跑起来（html.js-ready）才启用隐藏 → 淡入 */
.js-ready .reveal {
  opacity: 0;
  transform: translateY(16px);
}

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

@media (prefers-reduced-motion: reduce) {
  .reveal, .js-ready .reveal { opacity: 1; transform: none; transition: none; }
  .track { animation: none; }
  .live-dot { animation: none; }
  html { scroll-behavior: auto; }
}

/* 锚点跳转时给吸顶栏留出空间，避免标题被盖住 */
#top, #plans, #flow, #trust, #faq, #cta { scroll-margin-top: 92px; }

/* ---------- 响应式 ---------- */
@media (max-width: 1020px) {
  .hero-grid { grid-template-columns: 1fr; gap: 34px; }
  /* 单列后波形会压在正文上，压暗一档保证可读性 */
  .hero-wave { opacity: .4; }
  .quick-card { max-width: 520px; }
  .grid-4, .trust-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .final-card { grid-template-columns: 1fr; gap: 28px; padding: 34px 28px; }
  /* 平板 761~1020 放得下导航（logo 140 + 5 项 + 两个按钮 ≈ 730），
     原来在这里直接 display:none 会让 834 只剩「查询订单」一根独苗 */
  .nav-switch { gap: 0; padding: 3px; }
  .nav-switch a { padding: 6px 10px; font-size: 12.5px; }
  .header-link { font-size: 12.5px; }
}

@media (max-width: 760px) {
  .container { padding: 0 18px; }
  .header-inner { height: 64px; }
  .brand { font-size: 16px; }
  .header-link { display: none; }
  .nav-switch { display: none; }
  .hero { padding: 34px 0 18px; }
  .hero-wave { height: 380px; opacity: .35; }
  .points { grid-template-columns: 1fr; gap: 9px; }
  .section { padding: 54px 0; }
  .plans { grid-template-columns: 1fr; }
  .plans.is-filtered { grid-template-columns: 1fr; justify-content: stretch; }
  .grid-4, .trust-grid { grid-template-columns: 1fr; }
  .quick-card { padding: 20px 18px; }
  .live-card { padding: 11px 14px; gap: 12px; }
  .live-label span:not(.live-dot) { display: none; }
  .mobile-bar { display: flex; }
  body { padding-bottom: 74px; }
  .section-head { margin-bottom: 26px; }
  /* 平台切换：手机上改成横向滑动，避免换行后剩一个孤零零的标签 */
  .platform-tabs {
    width: 100%;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    justify-content: flex-start;
  }
  .platform-tabs::-webkit-scrollbar { display: none; }
  .ptab { padding: 7px 13px; font-size: 12.5px; flex-shrink: 0; }
  .final-card { padding: 28px 20px; }
  .footer-grid { flex-direction: column; gap: 20px; }
  .footer-links { gap: 16px; font-size: 12.5px; }
  .site-footer { margin-top: 54px; }
}

@media (min-width: 1021px) {
  .brand-sub { display: inline; }
}
/* ---------- 双按钮卡片 / 速览底部（支付宝为主，微信次要） ---------- */
.plan-card .btn + .btn,
.quick-foot .btn + .btn { margin-top: 8px; }
.plan-card .btn-ghost { height: 42px; font-size: 13.5px; }

/* ============================================================
   cxygpt.com 专用补充组件
   数据条 / 加赠礼包 / 四步流程 / 人群分流 / 企业采购 / 卡密指引
   ============================================================ */

/* ---------- 数据条（复用 .live 外壳，内部换成统计格） ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 4px;
  flex: 1;
  min-width: 0;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-left: 16px;
  border-left: 1px solid var(--line);
  min-width: 0;
}

.stat:first-child { border-left: 0; padding-left: 0; }

.stat b {
  font-family: var(--mono);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -.03em;
  color: var(--ink);
  white-space: nowrap;
}

.stat span {
  font-size: 11.5px;
  color: var(--muted-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ---------- 加赠礼包 ---------- */
.gift-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 232px;
  gap: 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-2);
  overflow: hidden;
}

.gift-copy { padding: 34px 34px 32px; }

.gift-copy h2 {
  margin-top: 12px;
  font-size: 24px;
  font-weight: 700;
  line-height: 1.35;
}

.gift-copy > p {
  margin-top: 10px;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--muted);
  max-width: 48em;
}

.gift-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 22px;
}

.gift-item {
  background: var(--bg);
  border: 1px solid var(--line-2);
  border-radius: var(--r-sm);
  padding: 14px 15px;
}

.gift-item b {
  display: block;
  font-size: 13px;
  font-weight: 650;
  color: var(--ink);
  letter-spacing: -.01em;
}

.gift-item span {
  display: block;
  margin-top: 5px;
  font-size: 11.8px;
  line-height: 1.7;
  color: var(--muted);
}

.gift-side {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
  padding: 34px 30px;
  background: linear-gradient(170deg, #f7f8fe 0%, #eef1fb 100%);
  border-left: 1px solid var(--line);
}

.gift-price {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.gift-price small {
  font-size: 11.5px;
  color: var(--muted-2);
}

.gift-price span {
  font-family: var(--mono);
  font-size: 30px;
  font-weight: 600;
  letter-spacing: -.04em;
  color: var(--ink);
  line-height: 1.15;
  text-decoration: line-through;
  text-decoration-color: var(--muted-2);
  text-decoration-thickness: 2px;
}

.gift-price em {
  font-size: 12.5px;
  font-style: normal;
  font-weight: 650;
  color: var(--brand);
}

/* ---------- 四步流程 ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  position: relative;
}

.step {
  position: relative;
  padding: 0 26px;
  border-left: 1px solid var(--line);
}

.step:first-child { border-left: 0; padding-left: 0; }
.step:last-child { padding-right: 0; }

.step-num {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 11px;
  background: var(--brand-soft);
  color: var(--brand);
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: -.02em;
  margin-bottom: 14px;
}

.step h3 {
  font-size: 14.5px;
  font-weight: 650;
  line-height: 1.5;
}

.step p {
  margin-top: 8px;
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--muted);
}

.step p b { color: var(--ink-2); font-weight: 650; }

/* ---------- 人群分流 ---------- */
.persona-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.persona {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 24px 22px;
  box-shadow: var(--shadow-1);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}

.persona:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
}

.persona-ico {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: var(--brand-soft);
  color: var(--brand);
  font-size: 16px;
  font-weight: 600;
  font-family: var(--mono);
  margin-bottom: 14px;
}

.persona h3 {
  font-size: 14.5px;
  font-weight: 650;
  line-height: 1.5;
}

.persona p {
  margin-top: 7px;
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--muted);
}

.persona-link {
  margin-top: auto;
  padding-top: 16px;
  font-size: 12.5px;
  font-weight: 650;
  color: var(--brand);
  transition: gap .25s var(--ease);
}

.persona-link:hover { color: var(--brand-deep); }

/* ---------- 企业采购 ---------- */
.ent-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 268px;
  gap: 40px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 38px 38px 36px;
  box-shadow: var(--shadow-2);
}

.ent-card h2 {
  margin-top: 12px;
  font-size: 26px;
  font-weight: 700;
  line-height: 1.32;
}

.ent-lead {
  margin-top: 12px;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--muted);
}

.ent-list {
  margin-top: 20px;
  display: grid;
  gap: 9px;
}

.ent-list li {
  display: flex;
  gap: 9px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-2);
}

.ent-list li::before {
  content: "";
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--brand);
  opacity: .55;
}

.ent-side {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-self: start;
  padding: 22px 22px 20px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
}

.ent-hint {
  font-size: 12.5px;
  font-weight: 650;
  color: var(--ink);
  letter-spacing: -.01em;
}

.ent-steps {
  margin: 0;
  padding: 0 0 0 0;
  list-style: none;
  counter-reset: ent;
  display: grid;
  gap: 8px;
}

.ent-steps li {
  counter-increment: ent;
  display: flex;
  gap: 9px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

.ent-steps li::before {
  content: counter(ent);
  flex: 0 0 auto;
  width: 17px;
  height: 17px;
  margin-top: 3px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--muted-2);
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 600;
  display: grid;
  place-items: center;
}

.ent-side .btn { margin-top: 4px; }
.ent-side .quick-note { text-align: center; }

/* ---------- 已有卡密指引 ---------- */
.redeem-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 34px 34px 30px;
  box-shadow: var(--shadow-1);
}

.redeem-head h2 {
  margin-top: 12px;
  font-size: 23px;
  font-weight: 700;
  line-height: 1.35;
}

.redeem-head p {
  margin-top: 10px;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--muted);
  max-width: 60em;
}

.redeem-head p b {
  color: var(--ink-2);
  font-weight: 650;
  font-family: var(--mono);
  font-size: 12.5px;
  background: var(--brand-soft);
  padding: 1px 6px;
  border-radius: 5px;
}

.redeem-steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.redeem-step {
  display: flex;
  gap: 13px;
  padding: 16px 18px;
  background: var(--bg);
  border: 1px solid var(--line-2);
  border-radius: var(--r-sm);
}

.rs-num {
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  border-radius: 8px;
  background: var(--brand);
  color: #fff;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  display: grid;
  place-items: center;
}

.redeem-step b {
  display: block;
  font-size: 13px;
  font-weight: 650;
  color: var(--ink);
  line-height: 1.55;
}

.redeem-step span {
  display: block;
  margin-top: 5px;
  font-size: 12.2px;
  line-height: 1.75;
  color: var(--muted);
}

.redeem-foot {
  display: flex;
  gap: 10px;
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

/* ---------- 响应式 ---------- */
@media (max-width: 1020px) {
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 0; }
  .stat:nth-child(3) { border-left: 0; padding-left: 0; }
  .gift-card { grid-template-columns: minmax(0, 1fr); }
  .gift-side {
    border-left: 0;
    border-top: 1px solid var(--line);
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 22px 26px;
  }
  .gift-side .btn { width: auto; flex: 0 0 auto; padding-inline: 22px; }
  .gift-price span { font-size: 24px; }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 26px 0; }
  .step:nth-child(3) { border-left: 0; padding-left: 0; }
  .persona-grid { grid-template-columns: minmax(0, 1fr); }
  .ent-card { grid-template-columns: minmax(0, 1fr); gap: 26px; padding: 30px 26px; }
  .ent-card h2 { font-size: 22px; }
  .redeem-card { padding: 28px 24px 26px; }
  .redeem-steps { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 760px) {
  .live-card { flex-direction: column; align-items: stretch; gap: 14px; }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stat b { font-size: 15px; }
  .gift-copy { padding: 26px 22px 24px; }
  .gift-copy h2 { font-size: 20px; }
  .gift-grid { grid-template-columns: minmax(0, 1fr); gap: 10px; }
  .gift-side {
    flex-direction: column;
    align-items: stretch;
    padding: 20px 22px;
    text-align: left;
  }
  .gift-side .btn { width: 100%; }
  .steps { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .step {
    border-left: 0;
    padding: 0 0 22px;
    display: grid;
    grid-template-columns: 34px minmax(0, 1fr);
    column-gap: 12px;
    align-items: start;
  }
  .step:not(:last-child) { border-bottom: 1px solid var(--line-2); margin-bottom: 22px; }
  .step-num { margin-bottom: 0; grid-row: 1 / span 2; }
  .step h3 { grid-column: 2; }
  .step p { grid-column: 2; margin-top: 6px; }
  .persona { padding: 20px 18px; }
  .redeem-head h2 { font-size: 19px; }
  .redeem-foot { flex-direction: column; }
  .redeem-foot .btn { width: 100%; }
}

/* ---------- 补充：hero-copy / 保障卡标题 / 页脚法务 ---------- */
.hero-copy { min-width: 0; }

.trust-item h3 {
  display: block;
  font-size: 15px;
  font-weight: 680;
  letter-spacing: -.02em;
  color: var(--ink);
  line-height: 1.5;
}

.trust-item p {
  margin-top: 7px;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--muted);
}

.trust-num {
  display: inline-block;
  margin-bottom: 12px;
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--brand);
  background: var(--brand-soft);
  padding: 2px 8px;
  border-radius: 6px;
  line-height: 1.6;
}

.footer-legal {
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 11.8px;
  line-height: 1.9;
  color: var(--muted-2);
}

@media (max-width: 760px) {
  .footer-legal { font-size: 11px; }
}

/* ============================================================
   修复块（渲染校验后补）
   ============================================================ */

/* 1. SVG 波形默认被填充成黑色 → 只保留描边（首屏灰疙瘩的根因） */
.hero-wave path { fill: none; }

/* 2. 编号胶囊被 .trust-item span 盖掉 → 用双类提高优先级 */
.trust-item .trust-num {
  display: inline-block;
  width: auto;
  height: auto;
  margin: 0 0 12px;
  padding: 2px 8px;
  border-radius: 6px;
  background: var(--brand-soft);
  color: var(--brand);
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 600;
  line-height: 1.6;
  letter-spacing: .02em;
}

/* 3. 卡密步骤序号同理，白字被 .redeem-step span 盖成灰字 */
.redeem-step .rs-num {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  margin: 0;
  border-radius: 8px;
  background: var(--brand);
  color: #fff;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
}

/* 4. 六张套餐卡在 4 列网格里会剩两个空格 → 改 3 列 2 行 */
.plans { grid-template-columns: repeat(3, minmax(0, 1fr)); }

/* 5. 首个按钮吃到 .plan-line + .btn 的 14px，把 auto 覆盖了 → 底部对齐失效 */
.plan-card .btn:first-of-type { margin-top: auto; }

/* 6. 加赠礼包右侧色块太淡，和左侧白底拉不开 */
.gift-side {
  background: linear-gradient(168deg, #f2f4fe 0%, #e6eafb 100%);
}

@media (max-width: 1020px) {
  .plans { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  .plans { grid-template-columns: minmax(0, 1fr); }
}

/* 7. 手机上「经营数据」文案被脉冲波的规则隐藏，只剩一个孤立绿点 → 恢复 */
@media (max-width: 760px) {
  .live-label span:not(.live-dot) { display: inline; }
  /* 数据条在手机上改成「标签一行 + 2×2」，不再挤在半列里 */
  .live-card { gap: 12px; }
  .live-label { width: 100%; }
}

/* 8. 平板宽度下三张人群卡被压成一列，留白过大 → 保持三列到 760px 再塌 */
@media (min-width: 761px) {
  .persona-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .persona h3 { font-size: 13.5px; }
  .persona p { font-size: 12px; }
}

/* 页头/页脚标记改用站点自己的 logo（原先是脉冲波的波形符号） */
.brand-mark {
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-1);
  padding: 2px;
  overflow: hidden;
}
.brand-mark img { width: 100%; height: 100%; border-radius: 9px; object-fit: contain; }

/* ============================================================
   gptlwm.com 竞价落地页专用组件
   ============================================================ */

/* 居中版标题（对齐目标站 52px / 800 的视觉） */
.section-head.center {
  margin-inline: auto;
  text-align: center;
  max-width: 760px;
}
.section-head.center h2 {
  font-size: clamp(28px, 4.2vw, 44px);
  font-weight: 800;
  letter-spacing: -.04em;
}
.section-head.center p { font-size: 15px; }

/* 首屏副标题 */
.hero-sub {
  margin-top: 18px;
  font-size: clamp(15px, 1.6vw, 17px);
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink);
  letter-spacing: -.01em;
}

/* 三个对勾小徽章 */
.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}
.badge-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 13px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--line);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink-2);
  box-shadow: var(--shadow-1);
}
.ico-ok {
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--ok-soft);
  position: relative;
  flex: 0 0 auto;
}
.ico-ok::after {
  content: "";
  position: absolute;
  left: 4.5px; top: 3.6px;
  width: 5px; height: 7.5px;
  border: 1.6px solid var(--ok);
  border-top: 0; border-left: 0;
  transform: rotate(42deg);
}

/* 礼包领取条 */
.lead-box {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 20px;
  padding: 15px 16px 15px 18px;
  border-radius: 16px;
  background: linear-gradient(100deg, #f2f1ff 0%, #eef6ff 100%);
  border: 1px solid #e2e0fb;
}
.lead-copy { min-width: 0; flex: 1; }
.lead-copy p {
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-2);
}
.lead-copy p b { color: var(--brand-deep); font-weight: 700; }
.lead-sub {
  margin-top: 3px;
  font-size: 11.8px;
  color: var(--muted-2);
  letter-spacing: .01em;
}
.lead-box .btn { flex: 0 0 auto; }

/* 右侧套餐选择面板 */
.sol-panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 16px;
  box-shadow: var(--shadow-2);
}
.sol-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 6px 12px;
  font-size: 12.5px;
  font-weight: 650;
  color: var(--muted);
  letter-spacing: .01em;
}
.sol-head svg { width: 15px; height: 15px; color: var(--brand); }

.sol-row {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) auto;
  align-items: center;
  gap: 13px;
  width: 100%;
  text-align: left;
  padding: 15px 14px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: #fff;
  transition: border-color .25s var(--ease), box-shadow .25s var(--ease), transform .25s var(--ease);
}
.sol-row + .sol-row { margin-top: 10px; }
.sol-row:hover { border-color: var(--brand-line); box-shadow: var(--shadow-1); transform: translateY(-1px); }
.sol-row.is-main { background: linear-gradient(150deg, #f7f8ff 0%, #eef1fe 100%); border-color: #e0e2fb; }

.sol-ico {
  width: 40px; height: 40px;
  border-radius: 12px;
  display: grid; place-items: center;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--brand);
}
.sol-ico svg { width: 21px; height: 21px; }
.sol-row.is-main .sol-ico { background: var(--brand); border-color: var(--brand); color: #fff; }

.sol-body { display: flex; flex-direction: column; gap: 1px; min-width: 0; }
.sol-tag {
  font-size: 10.5px;
  font-weight: 650;
  color: var(--brand);
  letter-spacing: .02em;
}
.sol-tag.is-alt { color: var(--muted-2); }
.sol-body b { font-size: 14px; font-weight: 680; letter-spacing: -.01em; color: var(--ink); }
.sol-body em {
  font-style: normal;
  font-size: 12px;
  color: var(--ink-3);
  font-weight: 600;
}
.sol-body small {
  font-size: 11.5px;
  color: var(--muted-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sol-go {
  font-size: 12px;
  font-weight: 650;
  color: var(--brand);
  white-space: nowrap;
}
.sol-note {
  margin-top: 12px;
  text-align: center;
  font-size: 11.5px;
  color: var(--muted-2);
}

/* 四宫格卖点 */
.pill-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  margin-top: 44px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow-1);
  overflow: hidden;
}
.pill-cell {
  padding: 18px 20px;
  border-left: 1px solid var(--line-2);
  text-align: center;
}
.pill-cell:first-child { border-left: 0; }
.pill-cell b {
  display: block;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -.01em;
}
.pill-cell span {
  display: block;
  margin-top: 3px;
  font-size: 11.5px;
  color: var(--muted-2);
}

/* 选项卡容器 */
.tabs-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 26px;
}

/* 卡片下方小字 */
.plans-note {
  margin-top: 22px;
  text-align: center;
  font-size: 12.5px;
  color: var(--muted-2);
}
.link-btn {
  border: 0;
  background: none;
  padding: 0;
  font-size: 12.5px;
  font-weight: 650;
  color: var(--brand);
}
.link-btn:hover { color: var(--brand-deep); }

/* 为什么选我们 */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.why-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 26px 24px;
  box-shadow: var(--shadow-1);
}
.why-ico {
  display: grid; place-items: center;
  width: 44px; height: 44px;
  border-radius: 13px;
  background: var(--brand-soft);
  color: var(--brand);
  margin-bottom: 16px;
}
.why-ico svg { width: 23px; height: 23px; }
.why-card h3 { font-size: 15.5px; font-weight: 700; letter-spacing: -.02em; }
.why-card p {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
}

/* 深色到账流程带 */
.dark-band {
  margin-top: 76px;
  padding: 68px 0;
  background: radial-gradient(120% 140% at 85% 0%, #1e2a63 0%, #141a33 55%, #10152a 100%);
  color: #fff;
}
.dark-inner {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  gap: 48px;
  align-items: center;
}
.eyebrow.is-dark {
  background: rgba(255, 255, 255, .09);
  border-color: rgba(255, 255, 255, .16);
  color: #c3c9f7;
}
.eyebrow.is-dark i { background: #8f9bf5; }
.dark-copy h2 {
  margin-top: 16px;
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -.035em;
  color: #fff;
}
.dark-copy p {
  margin-top: 14px;
  font-size: 14px;
  line-height: 1.9;
  color: rgba(255, 255, 255, .72);
  max-width: 30em;
}
.dark-actions { display: flex; gap: 10px; margin-top: 26px; flex-wrap: wrap; }
.btn-white {
  background: #fff;
  color: #15192c;
  border: 1px solid #fff;
  box-shadow: 0 10px 26px -12px rgba(0, 0, 0, .6);
}
.btn-white:hover { background: #f1f3fb; }
.btn-outline-light {
  background: transparent;
  color: #d7dbf5;
  border: 1px solid rgba(255, 255, 255, .26);
}
.btn-outline-light:hover { background: rgba(255, 255, 255, .08); color: #fff; }

.dark-panel {
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: var(--r-lg);
  padding: 24px 26px 22px;
}
.dark-panel-head {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  font-weight: 650;
  color: #aab1e8;
  margin-bottom: 18px;
}
.dark-steps { display: grid; gap: 14px; counter-reset: d; }
.dark-steps li { display: flex; gap: 12px; align-items: flex-start; }
.ds-num {
  flex: 0 0 auto;
  width: 27px; height: 27px;
  border-radius: 9px;
  display: grid; place-items: center;
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .14);
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 600;
  color: #c3c9f7;
}
.dark-steps b { display: block; font-size: 13.5px; font-weight: 650; color: #fff; line-height: 1.55; }
.dark-steps em {
  display: block;
  font-style: normal;
  margin-top: 2px;
  font-size: 12px;
  color: rgba(255, 255, 255, .55);
}
.dark-tip {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, .1);
  font-size: 11.8px;
  line-height: 1.75;
  color: rgba(255, 255, 255, .55);
}
.dark-tip b { color: #dfe3ff; font-weight: 650; }

/* 用户评价 */
.review-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.review {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 18px 20px 20px;
  box-shadow: var(--shadow-1);
}
.review-top {
  display: flex;
  align-items: center;
  gap: 10px;
}
.review-avatar {
  flex: 0 0 auto;
  width: 34px; height: 34px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: linear-gradient(140deg, #dfe3fb, #eef1fe);
  color: var(--brand-deep);
  font-size: 13px;
  font-weight: 700;
}
.review-top > div { min-width: 0; flex: 1; }
.review-top b { display: block; font-size: 13px; font-weight: 650; color: var(--ink); line-height: 1.4; }
/* 只能锁到姓名下面的小字：写成 .review-top span 会把同级的 .review-avatar /
   .review-badge 一起打掉（字变 11px 灰），头像里的姓和「已完成」都看不见了 */
.review-top > div span { display: block; font-size: 11px; color: var(--muted-2); }
.review-badge {
  flex: 0 0 auto;
  padding: 3px 8px;
  border-radius: 6px;
  background: var(--ok-soft);
  color: var(--ok);
  font-size: 10.5px;
  font-weight: 650;
}
.review p {
  margin-top: 12px;
  font-size: 12.8px;
  line-height: 1.85;
  color: var(--ink-3);
}

/* FAQ 两栏 */
.faq-wrap {
  display: grid;
  grid-template-columns: 330px minmax(0, 1fr);
  gap: 48px;
  align-items: start;
}
.faq-intro h2 {
  margin-top: 14px;
  font-size: clamp(26px, 3.2vw, 36px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.04em;
}
.faq-intro p {
  margin-top: 12px;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--muted);
}
.faq-intro .btn { margin-top: 20px; }

/* 终转化按钮组 */
.final-actions { display: grid; gap: 9px; margin-top: 16px; }

/* 悬浮客服（咨询引导气泡 + 企微入口） */
.float-service {
  position: fixed;
  right: 22px;
  bottom: 26px;
  z-index: 90;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 16px;
}
.float-bubble {
  position: relative;
  max-width: 232px;
  background: #fff;
  color: var(--ink-2);
  font-size: 13px;
  line-height: 1.65;
  padding: 11px 14px;
  border-radius: 14px 14px 3px 14px;
  border: 1px solid var(--line);
  box-shadow: 0 14px 36px -16px rgba(20, 22, 28, .30);
  text-align: left;
}
.float-bubble::after {
  content: "";
  position: absolute;
  right: 22px;
  bottom: -7px;
  width: 13px;
  height: 13px;
  background: #fff;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  border-radius: 0 0 3px 0;
  transform: rotate(45deg);
}
.float-btn {
  position: relative;
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 11px 18px;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(150deg, var(--brand) 0%, var(--brand-deep) 100%);
  color: #fff;
  box-shadow: 0 14px 34px -12px rgba(79, 70, 229, .75);
  transition: transform .25s var(--ease);
  cursor: pointer;
}
.float-btn:hover { transform: translateY(-2px); }
.float-btn svg { width: 18px; height: 18px; }
.float-btn em {
  font-style: normal;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .01em;
  white-space: nowrap;
}
.float-dot {
  position: absolute;
  top: -6px;
  right: -4px;
  min-width: 19px;
  height: 19px;
  padding: 0 5px;
  border-radius: 999px;
  background: #f43f5e;
  color: #fff;
  font-style: normal;
  font-size: 11px;
  font-weight: 700;
  line-height: 17px;
  text-align: center;
  border: 2px solid #fff;
  box-sizing: border-box;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1020px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .sol-panel { max-width: 560px; }
  .pill-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pill-cell:nth-child(3) { border-left: 0; }
  .pill-cell:nth-child(n+3) { border-top: 1px solid var(--line-2); }
  .why-grid { grid-template-columns: minmax(0, 1fr); }
  .dark-inner { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .dark-band { padding: 52px 0; margin-top: 60px; }
  .review-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .faq-wrap { grid-template-columns: minmax(0, 1fr); gap: 28px; }
}

@media (max-width: 760px) {
  .hero-sub { margin-top: 14px; }
  .badge-row { gap: 6px; }
  .badge-item { padding: 6px 10px; font-size: 11.5px; }
  .lead-box { flex-direction: column; align-items: stretch; gap: 12px; }
  .lead-box .btn { width: 100%; }
  .pill-row { margin-top: 30px; }
  .pill-cell { padding: 14px 12px; }
  .section-head.center h2 { font-size: 26px; }
  .review-grid { grid-template-columns: minmax(0, 1fr); }
  .dark-band { padding: 44px 0; }
  .dark-copy h2 { font-size: 24px; }
  .dark-actions .btn { flex: 1; }
  .dark-panel { padding: 20px 18px; }
  .float-service { right: 14px; bottom: 84px; }
  .float-btn { padding: 9px 11px 7px; border-radius: 13px; }
  .float-btn em { font-size: 9.5px; }
  .plans-note { font-size: 12px; }
}

/* ---------- 修正：4 张卡用 4 列，别在 3 列里剩一格空的 ---------- */
.plans { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* 首屏波形压淡一点，别穿过正文 */
.hero-wave { opacity: .42; }

@media (max-width: 1020px) {
  .plans { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .plans { grid-template-columns: minmax(0, 1fr); }
}

/* 四列窄卡时，说明文案一两行不定会把价格推歪 → 统一预留两行 */
.plan-card .plan-meta {
  min-height: 3.3em;
  text-wrap: balance; /* 两行时均分，别让第二个字单独掉到下一行 */
}

/* 四张卡 .fit 条目数 3/4/3/3，靠 margin-top:auto 只能把按钮推到卡底，
   上面那段空档还是各自不同 → 让 .fit 吃掉剩余高度，价格行的下沿才真正齐 */
.plan-card .fit {
  flex: 1 1 auto;
  align-content: start;
}

/* .plan-line 一行 / 两行会让按钮再错 22px，统一预留两行 */
.plan-card .plan-line { min-height: 3.4em; }

/* 手机上底部操作条里已经有「微信客服」，悬浮按钮是重复动作，
   而且它 bottom:84px 会盖住页脚版权行 → 直接收掉 */
@media (max-width: 760px) {
  .float-service { display: none; }
}