/*
  官网样式。配色**沿用大屏那一套**（dashboard/styles.css 开头那组变量）——
  官网和产品长得像不是偷懒，是让人点进大屏时认得出这是同一个东西。
  只多了几个官网才用的：光晕、玻璃卡、渐变字。

  没有外链字体：等 Google Fonts 的那 300ms 会让首屏文字先空白再跳一下，
  而系统字体（苹方 / 微软雅黑）在中文上本来就比大多数网络字体好看。
*/
:root {
  --bg: #060912;
  --bg-2: #0a1120;
  --card: rgba(19, 27, 46, 0.72);
  --card-solid: #111a2e;
  --line: rgba(120, 150, 200, 0.16);
  --line-2: rgba(120, 150, 200, 0.28);
  --text: #eaf0fd;
  --dim: #9db0d4;
  --faint: #6a7c9f;
  --accent: #3ea6ff;
  --accent-2: #46d9a8;
  --purple: #9d7bff;
  --warn: #ffb545;
  --danger: #ff5f6d;
  --radius: 16px;
  --maxw: 1180px;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* 背景光晕。固定定位 + 不参与命中测试，滚动时不重绘布局 */
.aurora {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(60rem 40rem at 12% -8%, rgba(62, 166, 255, 0.22), transparent 60%),
    radial-gradient(50rem 34rem at 88% 4%, rgba(157, 123, 255, 0.18), transparent 62%),
    radial-gradient(46rem 30rem at 50% 42%, rgba(70, 217, 168, 0.09), transparent 66%);
}

main, .nav, .foot { position: relative; z-index: 1; }

h1, h2, h3 { margin: 0; line-height: 1.25; letter-spacing: -0.02em; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9em;
  padding: 1px 6px;
  border-radius: 6px;
  background: rgba(62, 166, 255, 0.12);
  color: #b8dcff;
}
b { color: #fff; font-weight: 650; }

.grad {
  background: linear-gradient(96deg, var(--accent) 0%, var(--accent-2) 52%, var(--purple) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------------- 顶栏 ---------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 24px;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px 24px;
  /* 半透明 + 模糊：滚动时下面的内容透上来，比一块实心条轻 */
  backdrop-filter: blur(14px);
  background: linear-gradient(180deg, rgba(6, 9, 18, 0.86), rgba(6, 9, 18, 0.5));
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s, background 0.25s;
}
.nav.stuck { border-bottom-color: var(--line); background: rgba(6, 9, 18, 0.92); }
.nav-brand { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: #061020;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 6px 18px rgba(62, 166, 255, 0.35);
}
.nav-name { font-size: 15px; }
.nav-name em { font-style: normal; color: var(--faint); font-weight: 500; margin-left: 6px; font-size: 13px; }
.nav-links { display: flex; gap: 22px; margin-left: auto; font-size: 14.5px; color: var(--dim); }
.nav-links a { transition: color 0.18s; }
.nav-links a:hover { color: #fff; }
.nav-cta { display: flex; gap: 10px; align-items: center; }

/* ---------------- 按钮 ---------------- */
.btn {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1px;
  padding: 10px 18px;
  border: 1px solid var(--line-2);
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font: inherit;
  font-size: 14.5px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.16s, box-shadow 0.2s, background 0.2s, border-color 0.2s;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); background: rgba(255, 255, 255, 0.08); }
.btn:active { transform: translateY(0); }
.btn-primary {
  border-color: transparent;
  color: #04101f;
  background: linear-gradient(135deg, #6cc0ff, var(--accent) 46%, #2d8ce0);
  box-shadow: 0 10px 26px rgba(62, 166, 255, 0.3);
}
.btn-primary:hover { box-shadow: 0 14px 34px rgba(62, 166, 255, 0.42); background: linear-gradient(135deg, #7ec8ff, #47adff 46%, #3395e8); }
.btn-primary b, .btn-primary .btn-sub { color: rgba(4, 16, 31, 0.72); }
.btn-lg { padding: 14px 26px; font-size: 16px; border-radius: 13px; }
.btn-block { width: 100%; }
.btn-sub { font-size: 11.5px; font-weight: 500; opacity: 0.8; }
.btn:disabled { opacity: 0.55; cursor: default; transform: none; }

/* ---------------- 首屏 ---------------- */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr);
  gap: 56px;
  align-items: center;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 72px 24px 88px;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-2);
  letter-spacing: 0.02em;
  margin-bottom: 18px;
}
.dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 0 4px rgba(70, 217, 168, 0.18);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse { 50% { box-shadow: 0 0 0 8px rgba(70, 217, 168, 0.05); } }

.hero h1 { font-size: clamp(34px, 4.6vw, 58px); font-weight: 800; letter-spacing: -0.035em; }
.lede { margin-top: 20px; font-size: 17px; color: var(--dim); max-width: 34em; }
.hero-actions { display: flex; gap: 14px; margin-top: 32px; flex-wrap: wrap; }
.hero-facts { display: flex; gap: 28px; margin-top: 34px; flex-wrap: wrap; color: var(--faint); font-size: 13.5px; }
.hero-facts b { display: block; font-size: 24px; font-weight: 750; color: var(--text); letter-spacing: -0.02em; }

/* 大屏缩影 */
.hero-board { perspective: 1400px; }
.board {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 12px;
  background: linear-gradient(160deg, rgba(22, 32, 58, 0.9), rgba(10, 17, 32, 0.86));
  box-shadow: var(--shadow);
  transform: rotateY(-7deg) rotateX(3deg) translateZ(0);
  transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.hero-board:hover .board { transform: rotateY(-2deg) rotateX(1deg); }
.board-bar { display: flex; align-items: center; gap: 6px; padding: 2px 6px 12px; }
.board-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--line-2); }
.board-title { margin-left: 10px; font-size: 12px; color: var(--faint); }
.board-live { margin-left: auto; display: flex; align-items: center; gap: 5px; font-size: 11px; color: var(--accent-2); }
.board-live i { width: 6px; height: 6px; border-radius: 50%; background: var(--accent-2); animation: pulse 2s infinite; }
.board-kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.bk {
  padding: 10px 12px;
  border-radius: 11px;
  background: rgba(62, 166, 255, 0.07);
  border: 1px solid rgba(62, 166, 255, 0.14);
}
.bk span { display: block; font-size: 10.5px; color: var(--faint); }
.bk b { font-size: 17px; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.board-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 8px; }
.bcard {
  border: 1px solid var(--line);
  border-radius: 11px;
  padding: 10px;
  background: rgba(255, 255, 255, 0.025);
  min-height: 92px;
}
.bcard-wide { grid-column: span 2; }
.bcard-hd { display: flex; align-items: center; gap: 6px; font-size: 11px; color: var(--dim); margin-bottom: 8px; }
.bcard-tag { font-size: 9.5px; padding: 1px 6px; border-radius: 20px; background: rgba(157, 123, 255, 0.18); color: #c9b6ff; }
.spark { width: 100%; height: 66px; display: block; }
.spark-line { fill: none; stroke: var(--accent); stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.spark-line-2 { stroke: var(--accent-2); stroke-width: 1.6; opacity: 0.75; }
.gauge { position: relative; display: grid; place-items: center; height: 62px; }
.gauge svg { width: 62px; height: 62px; transform: rotate(-90deg); }
.g-track { fill: none; stroke: rgba(255, 255, 255, 0.08); stroke-width: 9; }
.g-arc {
  fill: none; stroke: var(--accent-2); stroke-width: 9; stroke-linecap: round;
  stroke-dasharray: 289; stroke-dashoffset: 52;
}
.gauge-num { position: absolute; font-size: 17px; font-weight: 700; }
.blist { font-size: 11px; color: var(--dim); display: grid; gap: 6px; }
.blist li { display: flex; align-items: center; gap: 6px; }
.blist b { margin-left: auto; color: var(--accent-2); font-size: 11px; }
.pip { width: 6px; height: 6px; border-radius: 50%; flex: none; }
.pip-danger { background: var(--danger); }
.pip-warn { background: var(--warn); }
.shots { display: flex; align-items: center; gap: 7px; }
.shots i {
  width: 40px; height: 40px; border-radius: 7px; flex: none;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.03)),
    repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.05) 0 4px, transparent 4px 8px);
  border: 1px solid var(--line);
}
.shots span { font-size: 10.5px; color: var(--faint); }

/* ---------------- 数字条 ---------------- */
.strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  max-width: var(--maxw);
  margin: 0 auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--line);
}
.strip-item { padding: 22px 24px; background: var(--bg-2); }
.strip-item b { display: block; font-size: 18px; letter-spacing: -0.02em; }
.strip-item span { font-size: 13px; color: var(--faint); }

/* ---------------- 服务数据 ---------------- */
.proof-stats {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 88px 24px 84px;
  text-align: center;
}
.proof-hd { max-width: 38em; margin: 0 auto 38px; }
.proof-hd .eyebrow { margin-bottom: 14px; }
.proof-hd h2 { font-size: clamp(26px, 3vw, 38px); font-weight: 780; }
.proof-hd p:last-child { margin-top: 14px; color: var(--dim); font-size: 15px; }
.proof-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--line);
}
.proof-stat { padding: 28px 20px 24px; background: rgba(19, 27, 46, 0.58); }
.proof-stat + .proof-stat { border-left: 1px solid var(--line); }
.proof-stat b {
  display: block;
  color: var(--text);
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.1;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
}
.proof-stat:nth-child(2) b { color: var(--accent); }
.proof-stat:nth-child(3) b { color: var(--accent-2); }
.proof-stat span { display: block; margin-top: 8px; color: var(--dim); font-size: 14px; }
.proof-note { margin-top: 14px; color: var(--faint); font-size: 12px; }

/* ---------------- 通用 section ---------------- */
.section { max-width: var(--maxw); margin: 0 auto; padding: 96px 24px; }
.section-alt { position: relative; }
.section-alt::before {
  content: '';
  position: absolute;
  inset: 0 -50vw;
  background: linear-gradient(180deg, transparent, rgba(10, 17, 32, 0.72) 12%, rgba(10, 17, 32, 0.72) 88%, transparent);
  z-index: -1;
}
.sec-hd { max-width: 46em; margin-bottom: 44px; }
.sec-hd h2 { font-size: clamp(26px, 3vw, 38px); font-weight: 780; }
.sec-sub { margin-top: 14px; color: var(--dim); font-size: 16px; }

/* ---------------- 能力卡 ---------------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.cards-3 { grid-template-columns: repeat(3, 1fr); }
.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  background: var(--card);
  backdrop-filter: blur(8px);
  transition: transform 0.22s, border-color 0.22s, box-shadow 0.22s;
}
.card:hover { transform: translateY(-3px); border-color: var(--line-2); box-shadow: var(--shadow); }
.card h3 { font-size: 18px; margin-bottom: 10px; }
.card p { color: var(--dim); font-size: 14.5px; }
.card-flat { background: rgba(255, 255, 255, 0.022); }
.ic {
  display: grid; place-items: center;
  width: 42px; height: 42px;
  border-radius: 12px;
  margin-bottom: 16px;
  font-size: 16px; font-weight: 700;
}
.ic-blue { background: rgba(62, 166, 255, 0.14); color: #8fcaff; }
.ic-green { background: rgba(70, 217, 168, 0.14); color: #7ce8c4; }
.ic-purple { background: rgba(157, 123, 255, 0.16); color: #c3adff; }
.ic-amber { background: rgba(255, 181, 69, 0.14); color: #ffd08a; }

/* ---------------- 两端 ---------------- */
.split { display: grid; gap: 20px; }
.split-card {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 40px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 34px;
  background: var(--card);
  backdrop-filter: blur(8px);
}
.split-text h3 { font-size: 21px; margin-bottom: 12px; }
.split-text p { color: var(--dim); font-size: 15px; }
.ticks { margin-top: 18px; display: grid; gap: 9px; font-size: 14px; color: var(--dim); }
.ticks li { position: relative; padding-left: 24px; }
.ticks li::before {
  content: '✓';
  position: absolute; left: 0; top: -1px;
  color: var(--accent-2); font-weight: 700;
}

/*
  手机网页版的「扫码打开」。
  二维码必须**白底**，深色卡上直接摆一张深色码是扫不出来的（对比度反了），
  所以给它一块白垫子，而不是让 /api/mobile-qr 输出反色。

  横排、小尺寸：这张卡的主图是那台手机，码只是「怎么打开」的入口。
  摆得跟手机一样大会抢主图的戏，而 104px 在屏幕上已经足够被相机认出来。
*/
.qr-inline {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 18px 0 4px;
  padding: 12px 14px;
  border: 1px solid var(--line-2);
  border-radius: 16px;
  background: linear-gradient(170deg, #131d33, #0a1120);
}
.qr {
  display: block;
  flex: none;
  width: 104px;
  height: 104px;
  border-radius: 8px;
  background: #fff;
  padding: 5px;
}
.qr-inline-text { min-width: 0; display: grid; gap: 4px; }
.qr-inline-text b { font-size: 14.5px; font-weight: 650; }
.qr-inline-text span { font-size: 12.5px; color: var(--faint); }
.qr-inline-text code {
  background: rgba(120, 150, 200, 0.14);
  border-radius: 5px;
  padding: 1px 5px;
  font-size: 12px;
}

/* 窄屏上码和字并排会把字挤成竖着的一列，落成上下两行 */
@media (max-width: 460px) {
  .qr-inline { flex-direction: column; align-items: flex-start; }
}

/* 「iPhone 怎么装 / 安卓怎么装」这种一行一句、前面顶个小标签的短清单 */
.steps-mini { margin-top: 16px; display: grid; gap: 8px; font-size: 14px; color: var(--dim); }
.steps-mini li { list-style: none; }
.steps-mini b {
  display: inline-block;
  min-width: 74px;
  margin-right: 8px;
  padding: 1px 8px;
  border-radius: 6px;
  background: rgba(62, 166, 255, 0.14);
  color: #8fcaff;
  font-size: 12.5px;
  font-weight: 650;
  text-align: center;
}

.phone {
  border: 1px solid var(--line-2);
  border-radius: 26px;
  padding: 16px 14px 14px;
  background: linear-gradient(170deg, #131d33, #0a1120);
  box-shadow: var(--shadow);
  max-width: 300px;
  margin: 0 auto;
}
.phone-hd { text-align: center; font-size: 13px; font-weight: 650; padding-bottom: 12px; }
.phone-chips { display: flex; gap: 5px; margin-bottom: 12px; }
.phone-chips i {
  flex: 1; text-align: center; font-style: normal; font-size: 11px;
  padding: 6px 0; border-radius: 8px;
  background: rgba(255, 255, 255, 0.05); color: var(--dim);
}
.phone-chips i.on { background: var(--accent); color: #04101f; font-weight: 650; }
.phone-row, .phone-line {
  display: flex; align-items: center; justify-content: space-between;
  padding: 9px 2px; border-bottom: 1px solid var(--line); font-size: 12.5px;
}
.phone-row span, .phone-line span { color: var(--faint); }
.phone-shot { display: flex; align-items: center; gap: 8px; padding: 12px 2px; }
.phone-shot i {
  width: 44px; height: 44px; border-radius: 8px;
  border: 1px dashed var(--line-2);
  background: repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.04) 0 5px, transparent 5px 10px);
}
.phone-shot span { font-size: 11.5px; color: var(--faint); }
.phone-bar {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 6px; padding: 10px 12px; border-radius: 12px;
  background: rgba(62, 166, 255, 0.1); font-size: 12.5px;
}
.phone-bar b { padding: 6px 12px; border-radius: 9px; background: var(--accent); color: #04101f; font-size: 12px; }

.mini-board { display: grid; gap: 8px; }
.mb-row { display: flex; gap: 8px; }
.mb {
  height: 46px; border-radius: 10px;
  border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(62, 166, 255, 0.1), rgba(255, 255, 255, 0.02));
  position: relative;
}
.mb::after {
  content: ''; position: absolute; left: 10px; top: 10px; width: 34%; height: 5px;
  border-radius: 4px; background: rgba(255, 255, 255, 0.16);
}
.w4 { flex: 4; } .w6 { flex: 6; } .w8 { flex: 8; }
.mb-hint { font-size: 12px; color: var(--faint); text-align: center; margin-top: 4px; }

/* ---------------- 价格 ---------------- */
.period-switch {
  display: inline-flex; gap: 4px; padding: 4px;
  border: 1px solid var(--line); border-radius: 12px;
  background: rgba(255, 255, 255, 0.03); margin-bottom: 28px;
}
.ps-item {
  padding: 8px 22px; border: 0; border-radius: 9px;
  background: transparent; color: var(--dim);
  font: inherit; font-size: 14px; font-weight: 600; cursor: pointer;
  transition: background 0.18s, color 0.18s;
}
.ps-item.on { background: rgba(62, 166, 255, 0.16); color: #fff; }
.ps-item em { font-style: normal; font-size: 11px; color: var(--accent-2); margin-left: 6px; }

.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; align-items: start; }
.plan {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px 24px;
  background: var(--card);
  backdrop-filter: blur(8px);
  transition: transform 0.22s, border-color 0.22s, box-shadow 0.22s;
}
.plan:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.plan-hot {
  border-color: rgba(62, 166, 255, 0.42);
  background: linear-gradient(180deg, rgba(62, 166, 255, 0.09), var(--card) 42%);
  box-shadow: 0 0 0 1px rgba(62, 166, 255, 0.14), var(--shadow);
}
.plan-badge {
  position: absolute; top: -11px; left: 24px;
  padding: 3px 12px; border-radius: 20px;
  font-size: 11.5px; font-weight: 700; color: #04101f;
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
}
.plan-name { font-size: 20px; }
.plan-tag { color: var(--faint); font-size: 13px; margin-top: 4px; min-height: 2.6em; }
.plan-price { display: flex; align-items: baseline; gap: 3px; margin: 12px 0 2px; }
.plan-price .cur { font-size: 17px; color: var(--dim); }
.plan-num { font-size: 40px; font-weight: 800; letter-spacing: -0.04em; font-variant-numeric: tabular-nums; }
.plan-price .per { font-size: 14px; color: var(--faint); margin-left: 3px; }
.plan-note { font-size: 12.5px; color: var(--accent-2); margin-bottom: 18px; min-height: 1.6em; }
.plan-list { margin-top: 20px; display: grid; gap: 10px; font-size: 14px; color: var(--dim); }
.plan-list li { position: relative; padding-left: 22px; }
.plan-list li::before { content: '✓'; position: absolute; left: 0; color: var(--accent); font-weight: 700; }

.trial-band {
  display: flex; align-items: center; justify-content: space-between; gap: 30px;
  margin-top: 24px; padding: 26px 30px;
  border: 1px solid rgba(70, 217, 168, 0.3);
  border-radius: 18px;
  background: linear-gradient(110deg, rgba(70, 217, 168, 0.12), rgba(62, 166, 255, 0.07));
}
.trial-band h3 { font-size: 20px; }
.trial-band p { color: var(--dim); font-size: 14.5px; margin-top: 6px; }

.compare { width: 100%; margin-top: 40px; border-collapse: collapse; font-size: 14px; }
.compare caption { text-align: left; font-size: 13px; color: var(--faint); padding-bottom: 12px; }
.compare th, .compare td { padding: 12px 14px; border-bottom: 1px solid var(--line); text-align: center; }
.compare thead th { color: var(--text); font-size: 13.5px; }
.compare tbody th { text-align: left; font-weight: 500; color: var(--dim); }
.compare td { color: var(--dim); font-variant-numeric: tabular-nums; }
.compare tbody tr:hover { background: rgba(255, 255, 255, 0.02); }

/* ---------------- 步骤 / FAQ / 尾部 CTA ---------------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: s; }
.steps li {
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; background: rgba(255, 255, 255, 0.022);
}
.steps b {
  display: grid; place-items: center;
  width: 30px; height: 30px; border-radius: 9px; margin-bottom: 14px;
  font-size: 13px; color: #04101f;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}
.steps h3 { font-size: 16.5px; margin-bottom: 8px; }
.steps p { font-size: 14px; color: var(--dim); }

.faq { display: grid; gap: 10px; max-width: 62em; }
.faq details {
  border: 1px solid var(--line); border-radius: 13px;
  background: rgba(255, 255, 255, 0.022);
  transition: border-color 0.2s;
}
.faq details[open] { border-color: var(--line-2); }
.faq summary {
  padding: 17px 22px; cursor: pointer; font-weight: 600; font-size: 15.5px;
  list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; color: var(--accent); font-size: 18px; font-weight: 400; }
.faq details[open] summary::after { content: '−'; }
.faq p { padding: 0 22px 19px; color: var(--dim); font-size: 14.5px; }

.cta-final { max-width: var(--maxw); margin: 0 auto; padding: 90px 24px 100px; text-align: center; }
.cta-final h2 { font-size: clamp(26px, 3.4vw, 40px); font-weight: 800; }
.cta-final p { color: var(--dim); margin: 16px 0 30px; }

.foot {
  border-top: 1px solid var(--line);
  padding: 34px 24px;
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex; align-items: center; gap: 24px; flex-wrap: wrap;
  font-size: 13.5px; color: var(--faint);
}
.foot-brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 650; }
.foot-links { display: flex; gap: 20px; margin-left: auto; }
.foot-links a:hover { color: #fff; }
.foot-note { width: 100%; }

/* ---------------- 开通浮层 ---------------- */
.modal { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; padding: 20px; }
.modal[hidden] { display: none; }
.modal-mask { position: absolute; inset: 0; background: rgba(3, 6, 13, 0.76); backdrop-filter: blur(6px); }
.modal-body {
  position: relative;
  width: min(460px, 100%);
  max-height: 92vh;
  overflow-y: auto;
  border: 1px solid var(--line-2);
  border-radius: 20px;
  padding: 32px 30px;
  background: linear-gradient(170deg, #16203a, #0b1222);
  box-shadow: 0 40px 90px rgba(0, 0, 0, 0.6);
  animation: rise 0.28s cubic-bezier(0.2, 0.8, 0.2, 1);
}
@keyframes rise { from { opacity: 0; transform: translateY(14px) scale(0.98); } }
.modal-x {
  position: absolute; top: 14px; right: 14px;
  width: 30px; height: 30px; border: 0; border-radius: 9px;
  background: rgba(255, 255, 255, 0.06); color: var(--dim);
  font-size: 13px; cursor: pointer;
}
.modal-x:hover { background: rgba(255, 255, 255, 0.12); color: #fff; }
.modal-body h2 { font-size: 22px; }
.modal-sub { color: var(--dim); font-size: 13.5px; margin-top: 6px; }
.m-periods { display: flex; gap: 8px; margin: 20px 0 4px; }
.m-periods button {
  flex: 1; padding: 11px 8px; border: 1px solid var(--line); border-radius: 12px;
  background: rgba(255, 255, 255, 0.03); color: var(--dim);
  font: inherit; font-size: 13.5px; cursor: pointer; text-align: center;
  transition: border-color 0.18s, background 0.18s, color 0.18s;
}
.m-periods button.on { border-color: var(--accent); background: rgba(62, 166, 255, 0.14); color: #fff; }
.m-periods b { display: block; font-size: 15px; }
.m-periods span { font-size: 11px; color: var(--faint); }
.m-periods button.on span { color: rgba(255, 255, 255, 0.66); }

.f { display: block; margin-top: 16px; }
.f > span { display: block; font-size: 13px; font-weight: 600; margin-bottom: 7px; }
.f > span em { font-style: normal; font-weight: 400; color: var(--faint); margin-left: 6px; font-size: 12px; }
.f input {
  width: 100%; padding: 12px 14px;
  border: 1px solid var(--line-2); border-radius: 11px;
  background: rgba(3, 7, 15, 0.6); color: var(--text);
  font: inherit; font-size: 15px;
  transition: border-color 0.18s, box-shadow 0.18s;
}
.f input:focus { outline: 0; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(62, 166, 255, 0.16); }
.f-hint { display: block; font-size: 11.5px; color: var(--faint); font-style: normal; margin-top: 6px; line-height: 1.55; }
.m-err {
  margin-top: 16px; padding: 11px 14px; border-radius: 11px;
  background: rgba(255, 95, 109, 0.12); border: 1px solid rgba(255, 95, 109, 0.3);
  color: #ffb0b6; font-size: 13.5px;
}
.m-err[hidden] { display: none; }
#m-submit, #c-submit { margin-top: 22px; }
.m-fine { margin-top: 14px; font-size: 11.5px; color: var(--faint); text-align: center; }
.m-wait { margin: 18px 0; font-size: 13px; color: var(--accent-2); }

.pay-methods { display: grid; gap: 10px; margin-top: 20px; }
/* 一个付款渠道一块。三种渠道分别是 <a>（跳收银台）、<div>（转账信息）、<button>（演示支付），
   所以样式挂在同一个类上、由标签自己决定可不可点。 */
.pay-item {
  display: block; width: 100%; text-align: left;
  border: 1px solid var(--line); border-radius: 13px; padding: 15px 17px;
  background: rgba(255, 255, 255, 0.025);
  color: var(--fg); font: inherit; text-decoration: none;
  transition: border-color 0.18s ease, background 0.18s ease, transform 0.18s ease;
}
a.pay-item, button.pay-item { cursor: pointer; }
a.pay-item:hover, button.pay-item:not(:disabled):hover {
  border-color: rgba(62, 166, 255, 0.5); background: rgba(62, 166, 255, 0.07); transform: translateY(-1px);
}
button.pay-item:disabled { opacity: 0.55; cursor: default; }
.pay-item b { display: block; font-size: 15px; }
.pay-item span { display: block; margin-top: 4px; font-size: 12.5px; color: var(--dim); }
.pay-go { display: inline-block; margin-top: 10px; font-size: 13px; font-style: normal; color: var(--accent); }
.pay-static { cursor: default; }
.pay-transfer {
  margin: 12px 0 0; padding: 12px 14px; border-radius: 10px;
  background: rgba(0, 0, 0, 0.3); border: 1px solid var(--line);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12.5px; line-height: 1.7; color: var(--fg);
  white-space: pre-wrap; word-break: break-all;
}
.pay-note { display: block; margin-top: 10px; font-size: 12px; font-style: normal; color: var(--warn, #f0b849); }
.pay-none {
  border: 1px dashed var(--line); border-radius: 13px; padding: 16px 18px;
  font-size: 13.5px; line-height: 1.8; color: var(--dim);
}
.pay-none b { color: var(--fg); }
/* 微信扫码。二维码本体是服务端现画的 SVG（server/lib/qr.js），这里只管它周围那一圈：
   码必须坐在**纯白底**上并留足静区，直接摆在深色卡片上会有扫码器对不出来。 */
button.pay-wx-go {
  border: 0; background: none; padding: 0; font: inherit; cursor: pointer;
  color: var(--accent);
}
button.pay-wx-go:disabled { cursor: default; opacity: 0.6; }
.pay-wx-box { margin-top: 12px; }
.pay-qr {
  width: max-content; margin: 0 auto; padding: 10px;
  border-radius: 12px; background: #fff; line-height: 0;
}
.pay-qr svg { display: block; width: 188px; height: 188px; }
.pay-qr-tip { margin: 12px 0 0; font-size: 12.5px; line-height: 1.75; color: var(--dim); text-align: center; }
/* .pay-item b 是 display:block（渠道标题用的），这里的 b 是句中强调，得掰回来。 */
.pay-qr-tip b { display: inline; font-size: inherit; color: var(--fg); }
.pay-qr-mobile { text-align: left; color: var(--warn, #f0b849); }
.pay-qr-mobile b { color: var(--warn, #f0b849); }
/* 未完成的订单入口，挂在导航右上。跟主按钮同色 —— 它确实是此刻最该点的那个。 */
/* 自己一个 keyframes 名字：上面 .dot / .board-live 已经用了 `pulse`，
   同名会被后定义的这份**整体顶掉**，把那两处的绿光变成蓝光。 */
.nav-resume { animation: resume-pulse 2.4s ease-in-out infinite; }
@keyframes resume-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(62, 166, 255, 0.45); }
  50% { box-shadow: 0 0 0 7px rgba(62, 166, 255, 0); }
}
/* 浮层开着时锁掉背后的滚动：不锁的话滚轮会滑动身后那一整页 */
body.modal-open { overflow: hidden; }

.claim-info {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
  margin: 20px 0 4px; padding: 14px 16px;
  border: 1px solid var(--line); border-radius: 12px;
  background: rgba(70, 217, 168, 0.07);
}
.claim-info span { display: block; font-size: 11.5px; color: var(--faint); }
.claim-info b { font-size: 15px; }

.step-done { text-align: center; padding: 20px 0; }
.done-ic {
  width: 56px; height: 56px; margin: 0 auto 18px;
  display: grid; place-items: center; border-radius: 50%;
  font-size: 26px; color: #04101f;
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
}

/* ---------------- 入场动画 ---------------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1); }
.reveal.in { opacity: 1; transform: none; }

/* ---------------- 窄屏 ---------------- */
@media (max-width: 1020px) {
  .hero { grid-template-columns: 1fr; gap: 44px; padding-top: 48px; }
  .board { transform: none; }
  .cards, .cards-3, .plans, .steps { grid-template-columns: repeat(2, 1fr); }
  .strip { grid-template-columns: repeat(2, 1fr); }
  .split-card { grid-template-columns: 1fr; gap: 26px; }
  /* 手机端把配图放到文字下面，别让人先滚过一张图才看到在说什么 */
  .split-card > .split-text { order: -1; }
  .nav-links { display: none; }
}
@media (max-width: 700px) {
  .section { padding: 64px 18px; }
  .hero { padding: 36px 18px 60px; }
  .cards, .cards-3, .plans, .steps, .strip, .proof-grid { grid-template-columns: 1fr; }
  .proof-stats { padding: 64px 18px; }
  .proof-stat + .proof-stat { border-left: 0; border-top: 1px solid var(--line); }
  .board-kpis { grid-template-columns: repeat(2, 1fr); }
  .board-grid { grid-template-columns: repeat(2, 1fr); }
  .bcard-wide { grid-column: span 2; }
  .trial-band { flex-direction: column; align-items: flex-start; }
  .modal-body { padding: 26px 20px; }
  .compare { font-size: 12.5px; }
  .compare th, .compare td { padding: 10px 6px; }
  .foot-links { margin-left: 0; }
}

/*
  「减少动态效果」是系统级的无障碍偏好，不是可选项：
  开着它的人里有一部分是动效会引发眩晕的。所以这里**全部**关掉，
  不只是关掉几个显眼的 —— 保留一两个「无害」的动画由我们说了不算。
*/
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .board { transform: none; }
}