@charset "UTF-8";

/* ===== 设计变量 ===== */
:root {
  --c1: #7C3AED;
  --c2: #2E90FA;
  --c3: #16C2A3;
  --accent: #FF8A2B;
  --accent-d: #F06A00;
  --ink: #131A2E;
  --ink-2: #46506B;
  --ink-3: #6E7791;
  --bg: #F5F7FD;
  --card: #FFFFFF;
  --line: #E3E8F4;
  --deep: #101735;
  --grad: linear-gradient(135deg, #7C3AED, #2E90FA 62%, #16C2A3);
  --grad-cta: linear-gradient(135deg, #FFAE5C, #FF7A18);
  --radius: 16px;
  --shadow: 0 10px 30px rgba(19, 26, 46, .07);
  --shadow-lg: 0 22px 48px rgba(19, 26, 46, .14);
}

/* ===== 基础重置 ===== */
* { box-sizing: border-box; }

body, h1, h2, h3, h4, p, ul, ol, li, figure, figcaption,
blockquote, dl, dd, dt, table, th, td {
  margin: 0;
  padding: 0;
}

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

body {
  font-family: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.78;
  font-size: 16px;
}

img { max-width: 100%; height: auto; display: block; border: 0; }

ul, ol { list-style: none; }

a { color: var(--c2); text-decoration: none; }
a:hover { color: var(--c1); }

.wrap { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 22px; }

/* ===== 顶栏 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .93);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 18px;
  min-height: 70px;
}

.brand { display: flex; align-items: center; gap: 10px; flex: none; }
.brand img { width: 42px; height: 42px; border-radius: 12px; box-shadow: var(--shadow); }
.brand-name { display: flex; flex-direction: column; line-height: 1.25; }
.brand-name b { font-size: 19px; letter-spacing: .5px; color: var(--ink); }
.brand-name .sub { font-size: 11.5px; color: var(--ink-3); letter-spacing: .6px; }

.nav { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.nav a {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 10px;
  font-size: 15px;
  color: var(--ink-2);
}
.nav a:hover { background: #EEF3FE; color: var(--c1); }
.nav a.on { color: var(--c1); background: #F0EBFE; font-weight: 600; }

.header-cta {
  margin-left: 8px;
  display: inline-block;
  padding: 10px 20px;
  border-radius: 22px;
  font-size: 14.5px;
  font-weight: 700;
  color: #fff !important;
  background: var(--grad-cta);
  box-shadow: 0 8px 20px rgba(240, 106, 0, .28);
  white-space: nowrap;
}
.header-cta:hover { filter: brightness(1.05); color: #fff; }

/* ===== 通用区块 ===== */
.section { padding: 64px 0; }
.section--tint { background: #fff; }

.sec-head { max-width: 860px; margin: 0 auto 34px; text-align: center; }
.sec-head h2 {
  font-size: 27px;
  line-height: 1.4;
  letter-spacing: .3px;
  color: var(--ink);
}
.sec-head h2::after {
  content: "";
  display: block;
  width: 54px;
  height: 4px;
  border-radius: 3px;
  margin: 14px auto 0;
  background: var(--grad);
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 14px 34px;
  border-radius: 30px;
  font-size: 17px;
  font-weight: 700;
  color: #fff !important;
  background: var(--grad-cta);
  box-shadow: 0 12px 26px rgba(240, 106, 0, .3);
  transition: transform .18s ease, box-shadow .18s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 16px 32px rgba(240, 106, 0, .36); color: #fff; }
.btn--ghost {
  color: var(--c1) !important;
  background: #fff;
  border: 1.5px solid #D8DCF0;
  box-shadow: none;
}
.btn--ghost:hover { border-color: var(--c1); box-shadow: 0 10px 22px rgba(124, 58, 237, .14); }
.btn--sm { padding: 10px 22px; font-size: 15px; }

/* ===== Hero ===== */
.hero {
  position: relative;
  overflow: hidden;
  color: #fff;
  background:
    radial-gradient(680px 380px at 84% 6%, rgba(46, 144, 250, .55), transparent 68%),
    radial-gradient(560px 340px at 6% 88%, rgba(255, 138, 43, .34), transparent 70%),
    radial-gradient(420px 300px at 52% 120%, rgba(22, 194, 163, .34), transparent 72%),
    linear-gradient(150deg, #140F33, #2A1A63 46%, #123A78);
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, .10) 1px, transparent 1px);
  background-size: 22px 22px;
  pointer-events: none;
}
.hero .in {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  gap: 40px;
  align-items: center;
  padding: 66px 22px 72px;
}

.hero-copy h1 {
  font-size: 42px;
  line-height: 1.28;
  letter-spacing: 1px;
  margin-bottom: 16px;
}
.hero-copy h1 em {
  font-style: normal;
  background: linear-gradient(120deg, #FFD79A, #FF9A3C 55%, #FFC46B);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-lead {
  font-size: 16.5px;
  color: rgba(255, 255, 255, .86);
  margin-bottom: 26px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.hero-actions .btn--ghost {
  color: #fff !important;
  background: rgba(255, 255, 255, .10);
  border-color: rgba(255, 255, 255, .45);
}
.hero-actions .btn--ghost:hover { background: rgba(255, 255, 255, .2); }

.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.hero-tags span {
  padding: 6px 14px;
  border-radius: 16px;
  font-size: 13px;
  color: rgba(255, 255, 255, .92);
  background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .2);
}

.hero-visual { display: flex; justify-content: center; align-items: flex-end; gap: 18px; }
.hero .in > * { min-width: 0; }
.hero-visual > * { min-width: 0; }
.phone {
  border-radius: 26px;
  padding: 8px;
  background: linear-gradient(160deg, #2B3357, #151A2E);
  box-shadow: var(--shadow-lg);
}
.phone .screen {
  border-radius: 19px;
  overflow: hidden;
  background: #0b0d12;
}
.phone .screen img { width: 100%; height: auto; display: block; }
.phone-stage .phone { width: 206px; flex: none; }
.phone-stage .phone.small { width: 142px; flex: none; }

/* ===== 信任数据条 ===== */
.stats { background: #fff; border-bottom: 1px solid var(--line); }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  padding: 30px 0;
}
.stat { text-align: center; padding: 8px 6px; }
.stat b {
  display: block;
  font-size: 28px;
  line-height: 1.2;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat span { font-size: 14px; color: var(--ink-3); }

/* ===== 卡片栅格 ===== */
.grid { display: grid; gap: 20px; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  display: flex;
  flex-direction: column;
  padding: 24px 22px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  transition: transform .18s ease, box-shadow .18s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.card .ico {
  width: 46px;
  height: 46px;
  border-radius: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: #fff;
  background: var(--grad);
  margin-bottom: 14px;
}
.card h3 { font-size: 18px; margin-bottom: 8px; color: var(--ink); }
.card p { font-size: 14.5px; color: var(--ink-2); }
.card .use {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 13.5px;
  color: var(--ink-3);
}

/* ===== 预览图栅格 ===== */
.shots {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.shot {
  margin: 0;
  border-radius: 14px;
  overflow: hidden;
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.shot img { width: 100%; height: auto; display: block; }
.shot figcaption {
  padding: 11px 12px;
  font-size: 13.5px;
  color: var(--ink-2);
  text-align: center;
  line-height: 1.5;
}

/* ===== 深度内容入口卡 ===== */
.entry {
  display: flex;
  flex-direction: column;
  padding: 24px 22px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  transition: transform .18s ease, box-shadow .18s ease;
}
.entry:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.entry .k {
  display: inline-block;
  align-self: flex-start;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 12.5px;
  color: #fff;
  background: var(--grad);
  margin-bottom: 12px;
}
.entry h3 { font-size: 18px; margin-bottom: 8px; }
.entry h3 a { color: var(--ink); }
.entry h3 a:hover { color: var(--c1); }
.entry p { font-size: 14.5px; color: var(--ink-2); }
.entry .more {
  margin-top: auto;
  padding-top: 14px;
  font-size: 14px;
  font-weight: 700;
  color: var(--c1);
}

/* ===== 用户评价 ===== */
.reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.review {
  display: flex;
  flex-direction: column;
  padding: 22px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.review .stars { color: var(--accent); font-size: 14px; letter-spacing: 2px; margin-bottom: 10px; }
.review p { font-size: 14.5px; color: var(--ink-2); }
.review .who {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  color: var(--ink-3);
}

/* ===== FAQ ===== */
.faq-list { max-width: 880px; margin: 0 auto; }
.faq details, .prose details {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 13px;
  margin-bottom: 12px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.faq summary, .prose details > summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 46px 16px 18px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  position: relative;
}
.faq summary::-webkit-details-marker, .prose details > summary::-webkit-details-marker { display: none; }
.faq summary::after, .prose details > summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 21px;
  font-weight: 400;
  color: var(--c1);
  line-height: 1;
}
.faq details[open] summary::after, .prose details[open] > summary::after { content: "\2212"; }
.faq .ans, .prose details .ans {
  padding: 0 18px 18px;
  font-size: 14.5px;
  color: var(--ink-2);
}

/* ===== 底部下载通道 ===== */
.cta-band {
  position: relative;
  overflow: hidden;
  text-align: center;
  color: #fff;
  border-radius: 20px;
  padding: 46px 26px;
  background:
    radial-gradient(520px 300px at 88% 10%, rgba(46, 144, 250, .5), transparent 70%),
    radial-gradient(460px 280px at 8% 92%, rgba(255, 138, 43, .34), transparent 70%),
    linear-gradient(140deg, #17103A, #2A1A63 52%, #123A78);
  box-shadow: var(--shadow-lg);
}
.cta-band h2 { font-size: 25px; margin-bottom: 12px; }
.cta-band p { color: rgba(255, 255, 255, .85); font-size: 15.5px; margin-bottom: 24px; }

/* ===== 页脚 ===== */
.site-footer {
  background: #101735;
  color: rgba(255, 255, 255, .72);
  padding: 48px 0 26px;
  font-size: 14px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 26px;
  padding-bottom: 26px;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
}
.footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.footer-brand img { width: 38px; height: 38px; border-radius: 11px; }
.footer-brand b { color: #fff; font-size: 17px; }
.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 12px; }
.footer-col a { display: block; color: rgba(255, 255, 255, .72); padding: 5px 0; font-size: 14px; }
.footer-col a:hover { color: #fff; }
.footer-note { padding-top: 20px; line-height: 1.9; font-size: 13.5px; }
.footer-note .disclaimer { color: rgba(255, 255, 255, .78); }
.footer-note .copy { margin-top: 10px; color: rgba(255, 255, 255, .5); }

/* ===== 内页正文 ===== */
.page-hero {
  color: #fff;
  background: linear-gradient(135deg, #7C3AED, #2E90FA 62%, #16C2A3);
  padding: 52px 0 46px;
}
.page-hero h1 { font-size: 32px; line-height: 1.34; margin-bottom: 12px; }
.page-hero p { color: rgba(255, 255, 255, .9); font-size: 15.5px; max-width: 860px; }
.crumb { font-size: 13.5px; color: rgba(255, 255, 255, .8); margin-bottom: 14px; }
.crumb a { color: rgba(255, 255, 255, .92); }

.layout { display: grid; grid-template-columns: 1fr; gap: 0; }
.layout > * { min-width: 0; }

.prose {
  max-width: 900px;
  min-width: 0;
  width: 100%;
  margin: 0 auto;
  padding: 52px 22px 60px;
}
.prose h2 {
  font-size: 24px;
  line-height: 1.45;
  margin: 44px 0 0;
  color: var(--ink);
  padding-left: 15px;
  border-left: 5px solid var(--c1);
}
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 18.5px; margin: 26px 0 0; color: var(--ink); }
.sec-body { margin-top: 16px; }
.prose p { font-size: 16px; color: var(--ink-2); margin: 14px 0; }
.prose > ul, .prose > ol { margin: 14px 0; }
.prose > ul > li, .prose > ol > li {
  position: relative;
  padding-left: 18px;
  margin: 9px 0;
  font-size: 16px;
  color: var(--ink-2);
}
.prose > ul > li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: .72em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c2);
}
.prose > ol { counter-reset: pl; }
.prose > ol > li { counter-increment: pl; }
.prose > ol > li::before {
  content: counter(pl) ".";
  position: absolute;
  left: 0;
  color: var(--c1);
  font-weight: 700;
}
.prose strong { color: var(--ink); }

.prose .steps { counter-reset: st; margin: 20px 0; }
.prose .steps li {
  position: relative;
  counter-increment: st;
  list-style: none;
  padding-left: 52px;
  margin: 16px 0;
  font-size: 16px;
  color: var(--ink-2);
}
.prose .steps li::before {
  content: counter(st);
  position: absolute;
  left: 0;
  top: 1px;
  width: 34px;
  height: 34px;
  border-radius: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  background: var(--grad);
}
.prose .steps li b { display: block; color: var(--ink); font-size: 16.5px; margin-bottom: 3px; }
.prose .steps li p { margin: 0; font-size: 15px; }

.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--card);
  margin: 20px 0;
  box-shadow: var(--shadow);
}
table.cmp { width: 100%; min-width: 680px; border-collapse: collapse; font-size: 14.5px; }
table.cmp th, table.cmp td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  color: var(--ink-2);
}
table.cmp th { background: #F1F4FD; color: var(--ink); font-weight: 700; white-space: nowrap; }
table.cmp tr:last-child td { border-bottom: 0; }

.prose .shot { margin: 26px auto; max-width: 368px; }
.prose .shot img { width: 100%; height: auto; display: block; }

.tip {
  margin: 22px 0;
  padding: 16px 18px;
  border-radius: 12px;
  background: #FFF7EE;
  border: 1px solid #FFE0BE;
  font-size: 15px;
  color: #8A4A0C;
}
.tip b { color: #B24D00; }

.rel-links { margin: 22px 0; padding: 20px; border-radius: 14px; background: #fff; border: 1px solid var(--line); }
.rel-links h3 { margin: 0 0 10px; font-size: 17px; }
.rel-links ul li { position: relative; padding-left: 16px; margin: 8px 0; font-size: 15px; }
.rel-links ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 8px;
  height: 8px;
  border-radius: 3px;
  background: var(--grad);
}

/* ===== 渐显动画（仅首页使用） ===== */
.reveal { transition: opacity .55s ease, transform .55s ease; }
.js .reveal { opacity: 0; transform: translateY(18px); }
.js .reveal.is-in { opacity: 1; transform: none; }

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

@media print {
  .js .reveal, .reveal { opacity: 1 !important; transform: none !important; }
}

/* ===== 响应式 ===== */
@media (max-width: 980px) {
  .hero .in { grid-template-columns: 1fr; gap: 34px; }
  .hero-copy h1 { font-size: 35px; }
  .hero-visual { order: 2; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .shots { grid-template-columns: repeat(3, 1fr); }
  .reviews { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 620px) {
  body { font-size: 15.5px; }

  .header-inner {
    flex-wrap: wrap;
    min-height: 0;
    padding-top: 10px;
    padding-bottom: 10px;
    gap: 8px;
  }
  .brand { width: 100%; }
  .brand-name .sub { display: none; }
  .nav {
    width: 100%;
    margin-left: 0;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0;
  }
  .nav a {
    flex: 0 0 33.3333%;
    text-align: center;
    padding: 7px 0;
    font-size: 14px;
    white-space: nowrap;
  }
  .nav .header-cta { display: none; }

  .section { padding: 48px 0; }
  .sec-head h2 { font-size: 21px; }

  .hero .in { padding: 42px 22px 48px; }
  .hero-copy h1 { font-size: 27px; letter-spacing: .5px; }
  .hero-lead { font-size: 15.5px; }
  .hero-actions .btn { width: 100%; }
  .phone-stage { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
  .phone-stage .phone { width: 44vw; max-width: 196px; }
  .phone-stage .phone.small { width: 30vw; max-width: 132px; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .stat b { font-size: 24px; }

  .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .shots { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .reviews { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }

  .page-hero { padding: 38px 0 34px; }
  .page-hero h1 { font-size: 23px; }
  .prose { padding: 38px 22px 46px; }
  .prose h2 { font-size: 20px; margin-top: 34px; }
  .prose .steps li { padding-left: 44px; }
  .prose .steps li::before { width: 30px; height: 30px; font-size: 14px; }

  .cta-band { padding: 34px 20px; border-radius: 16px; }
  .cta-band h2 { font-size: 20px; }
}