:root {
    --blue-deep: #0b2545;
    --blue-mid: #1d4e89;
    --blue-bright: #3a86c8;
    --blue-soft: #eaf2fb;
    --blue-line: #d3e2f4;
    --ink: #17212f;
    --ink-soft: #526176;
    --white: #ffffff;
    --radius: 14px;
    --maxw: 1160px;
  }
  * { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body {
    font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    color: var(--ink);
    background: var(--white);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
  }
  img { display: block; max-width: 100%; }
  a { color: inherit; text-decoration: none; }
  .wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

  /* ---------- header ---------- */
  .site-header {
    position: sticky; top: 0; z-index: 50;
    background: rgba(255,255,255,.94);
    border-bottom: 1px solid var(--blue-line);
    backdrop-filter: blur(8px);
  }
  .header-inner {
    display: flex; align-items: center; justify-content: space-between;
    height: 64px; gap: 16px;
  }
  .brand { display: flex; align-items: center; gap: 10px; }
  .brand img { height: 32px; width: auto; }
  .brand-name { font-size: 18px; font-weight: 700; color: var(--blue-deep); letter-spacing: .5px; }
  .nav { display: flex; align-items: center; gap: 26px; }
  .nav a { font-size: 15px; color: var(--ink-soft); transition: color .2s; }
  .nav a:hover { color: var(--blue-bright); }
  .nav-toggle {
    display: none; background: none; border: 1px solid var(--blue-line);
    border-radius: 8px; padding: 6px 12px; font-size: 14px; color: var(--blue-deep);
    cursor: pointer;
  }

  /* ---------- hero ---------- */
  .hero {
    background: linear-gradient(160deg, #f3f8fe 0%, #e2eefb 55%, #d6e7fa 100%);
    padding: 64px 0 72px;
    overflow: hidden;
  }
  .hero-inner {
    display: grid; grid-template-columns: 1.05fr .95fr;
    gap: 48px; align-items: center;
  }
  .hero-tag {
    display: inline-block; font-size: 13px; color: var(--blue-mid);
    background: var(--white); border: 1px solid var(--blue-line);
    padding: 4px 12px; border-radius: 99px; margin-bottom: 18px;
  }
  .hero h1 {
    font-size: 40px; line-height: 1.28; color: var(--blue-deep);
    font-weight: 800; letter-spacing: -.5px;
  }
  .hero h1 em { font-style: normal; color: var(--blue-bright); }
  .hero-desc {
    margin-top: 20px; font-size: 17px; color: var(--ink-soft); max-width: 520px;
  }
  .hero-actions { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
  .btn-primary {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--blue-mid); color: var(--white);
    padding: 13px 28px; border-radius: 10px; font-size: 16px; font-weight: 600;
    box-shadow: 0 8px 20px rgba(29,78,137,.24);
    transition: transform .2s, background .2s;
  }
  .btn-primary:hover { background: var(--blue-deep); transform: translateY(-2px); }
  .btn-ghost {
    display: inline-flex; align-items: center;
    border: 1px solid var(--blue-bright); color: var(--blue-mid);
    padding: 12px 24px; border-radius: 10px; font-size: 15px;
    transition: background .2s;
  }
  .btn-ghost:hover { background: var(--white); }
  .hero-points { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 10px 22px; }
  .hero-points span { font-size: 14px; color: var(--blue-mid); }
  .hero-points span::before { content: "·"; margin-right: 6px; color: var(--blue-bright); }

  .hero-visual { position: relative; }
  .hero-visual .phone {
    width: 100%; max-width: 420px; margin-left: auto;
    border-radius: 22px; border: 6px solid var(--white);
    box-shadow: 0 24px 50px rgba(11,37,69,.2);
    overflow: hidden; background: var(--white);
  }
  .hero-visual .phone img { width: 100%; height: 300px; object-fit: cover; }
  .hero-visual .float {
    position: absolute; left: -12px; bottom: -26px;
    width: 168px; border-radius: 14px; border: 5px solid var(--white);
    box-shadow: 0 14px 30px rgba(11,37,69,.18);
  }

  /* ---------- 通用 section ---------- */
  section { padding: 76px 0; }
  .section-title {
    font-size: 30px; color: var(--blue-deep); font-weight: 800;
    line-height: 1.35; letter-spacing: -.3px;
  }
  .section-lead { margin-top: 14px; font-size: 16px; color: var(--ink-soft); max-width: 640px; }
  .section-head { margin-bottom: 40px; }

  /* ---------- 每日看点 ---------- */
  .daily { background: var(--white); }
  .daily-grid {
    display: grid; grid-template-columns: 1.4fr 1fr; gap: 26px;
  }
  .daily-main {
    border-radius: var(--radius); overflow: hidden; position: relative;
    display: block; background: var(--blue-deep);
  }
  .daily-main img { width: 100%; height: 100%; min-height: 380px; object-fit: cover; opacity: .92; transition: transform .5s; }
  .daily-main:hover img { transform: scale(1.04); }
  .daily-main .cap {
    position: absolute; left: 0; right: 0; bottom: 0;
    padding: 60px 24px 24px;
    background: linear-gradient(to top, rgba(11,37,69,.92), rgba(11,37,69,0));
    color: var(--white);
  }
  .daily-main .cap h3 { font-size: 21px; margin-bottom: 8px; }
  .daily-main .cap p { font-size: 14px; color: #d6e7fa; }
  .daily-list { display: flex; flex-direction: column; gap: 16px; }
  .daily-item {
    display: flex; gap: 14px; align-items: flex-start;
    padding: 16px; border: 1px solid var(--blue-line); border-radius: var(--radius);
    background: var(--white); transition: border-color .2s, transform .2s;
  }
  .daily-item:hover { border-color: var(--blue-bright); transform: translateX(4px); }
  .daily-item img { width: 84px; height: 84px; object-fit: cover; border-radius: 10px; flex-shrink: 0; }
  .daily-item h3 { font-size: 16px; color: var(--blue-deep); margin-bottom: 4px; }
  .daily-item p { font-size: 13.5px; color: var(--ink-soft); line-height: 1.55; }

  /* ---------- 三个版块 ---------- */
  .modules { background: var(--blue-soft); }
  .module-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
  .module-card {
    background: var(--white); border-radius: var(--radius); overflow: hidden;
    border: 1px solid var(--blue-line); display: flex; flex-direction: column;
  }
  .module-card .thumb { height: 190px; overflow: hidden; }
  .module-card .thumb img { width: 100%; height: 100%; object-fit: cover; }
  .module-body { padding: 22px 22px 26px; display: flex; flex-direction: column; flex: 1; }
  .module-body .num { font-size: 13px; color: var(--blue-bright); font-weight: 700; letter-spacing: 1px; }
  .module-body h3 { font-size: 19px; color: var(--blue-deep); margin: 6px 0 10px; }
  .module-body p { font-size: 14.5px; color: var(--ink-soft); flex: 1; }
  .module-body .go { margin-top: 16px; font-size: 14px; color: var(--blue-mid); font-weight: 600; }

  /* ---------- 杂志式内容 ---------- */
  .magazine { background: var(--white); }
  .mag-lead-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: center;
    margin-bottom: 56px;
  }
  .mag-lead-grid img { width: 100%; height: 320px; object-fit: cover; border-radius: var(--radius); }
  .mag-text h2 { font-size: 28px; color: var(--blue-deep); font-weight: 800; line-height: 1.4; }
  .mag-text p { margin-top: 16px; font-size: 15.5px; color: var(--ink-soft); }
  .mag-list { margin-top: 22px; list-style: none; display: flex; flex-direction: column; gap: 12px; }
  .mag-list li { font-size: 15px; color: var(--ink); padding-left: 18px; position: relative; }
  .mag-list li::before {
    content: ""; position: absolute; left: 0; top: 10px;
    width: 7px; height: 7px; border-radius: 50%; background: var(--blue-bright);
  }
  .mag-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px;
  }
  .mag-card { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--blue-line); background: var(--white); }
  .mag-card img { width: 100%; height: 200px; object-fit: cover; }
  .mag-card .txt { padding: 16px 18px 20px; }
  .mag-card .txt h3 { font-size: 16.5px; color: var(--blue-deep); margin-bottom: 6px; }
  .mag-card .txt p { font-size: 13.5px; color: var(--ink-soft); }

  /* ---------- 聊天/交友 ---------- */
  .chat { background: var(--blue-deep); color: var(--white); }
  .chat .section-title { color: var(--white); }
  .chat .section-lead { color: #b9d3ee; }
  .chat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
  .chat-copy h3 { font-size: 20px; color: #ffffff; margin-bottom: 12px; margin-top: 26px; }
  .chat-copy h3:first-child { margin-top: 0; }
  .chat-copy p { font-size: 15px; color: #c9ddf2; }
  .chat-imgs { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
  .chat-imgs img { width: 100%; height: 220px; object-fit: cover; border-radius: var(--radius); border: 3px solid rgba(255,255,255,.16); }
  .chat-imgs img:first-child { grid-row: span 2; height: 100%; }

  /* ---------- 截图墙 ---------- */
  .gallery { background: var(--blue-soft); }
  .gallery-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
  }
  .gallery-grid img {
    width: 100%; height: 200px; object-fit: cover;
    border-radius: 12px; border: 3px solid var(--white);
    box-shadow: 0 6px 18px rgba(11,37,69,.08);
  }

  /* ---------- 下载 ---------- */
  .download { background: linear-gradient(150deg, #1d4e89, #0b2545); color: var(--white); text-align: center; }
  .download h2 { font-size: 30px; font-weight: 800; }
  .download p { margin: 16px auto 0; max-width: 620px; color: #c9ddf2; font-size: 16px; }
  .download .btn-primary {
    margin-top: 30px; background: var(--white); color: var(--blue-deep);
    box-shadow: 0 10px 26px rgba(0,0,0,.24);
  }
  .download .btn-primary:hover { background: #eaf2fb; }
  .download .note { margin-top: 18px; font-size: 13px; color: #9fbfe0; }

  /* ---------- footer ---------- */
  .site-footer {
    background: #081a30; color: #7f9bba; font-size: 13px;
    padding: 30px 0 34px; text-align: center;
  }
  .site-footer p { margin-bottom: 8px; line-height: 1.8; }
  .site-footer a { color: #9fbdd9; }
  .site-footer a:hover { color: var(--white); }
  .footer-time { font-size: 12px; color: #5f7a99; }

  /* ---------- responsive ---------- */
  @media (max-width: 1024px) {
    .hero h1 { font-size: 34px; }
    .module-grid, .mag-grid { grid-template-columns: repeat(2, 1fr); }
    .gallery-grid { grid-template-columns: repeat(3, 1fr); }
    .hero-inner { gap: 32px; }
  }
  @media (max-width: 768px) {
    .nav { display: none; }
    .nav.open { display: flex; position: absolute; top: 64px; left: 0; right: 0;
      background: var(--white); flex-direction: column; padding: 16px 20px 22px;
      border-bottom: 1px solid var(--blue-line); gap: 14px; }
    .nav-toggle { display: block; }
    .site-header { position: relative; }
    .hero { padding: 44px 0 54px; }
    .hero-inner { grid-template-columns: 1fr; }
    .hero h1 { font-size: 28px; }
    .hero-desc { font-size: 15.5px; }
    .hero-visual { margin-top: 12px; }
    .hero-visual .phone { margin: 0 auto; }
    .hero-visual .float { display: none; }
    section { padding: 52px 0; }
    .section-title { font-size: 24px; }
    .daily-grid { grid-template-columns: 1fr; }
    .daily-main img { min-height: 240px; }
    .module-grid, .mag-grid { grid-template-columns: 1fr; }
    .mag-lead-grid { grid-template-columns: 1fr; gap: 24px; margin-bottom: 40px; }
    .mag-lead-grid img { height: 230px; }
    .mag-text h2 { font-size: 23px; }
    .chat-grid { grid-template-columns: 1fr; gap: 30px; }
    .chat-imgs img { height: 160px; }
    .chat-imgs img:first-child { height: 100%; }
    .gallery-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .gallery-grid img { height: 150px; }
    .download h2 { font-size: 24px; }
  }