/* =========================================================
   平望新博电脑 - 企业宣传站样式
   ========================================================= */
:root {
  --blue: #1e6bff;
  --blue-deep: #0b3fbf;
  --navy: #0a1c3d;
  --navy-2: #10294f;
  --orange: #ff7a1a;
  --orange-deep: #e8630a;
  --ink: #1c2b3a;
  --muted: #5b6b7f;
  --line: #e3ebf7;
  --bg: #f5f8ff;
  --white: #ffffff;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(15, 45, 110, .08);
  --shadow-hover: 0 16px 40px rgba(15, 45, 110, .16);
  --grad-hero: linear-gradient(135deg, #0a1c3d 0%, #123063 55%, #14418f 100%);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }

section[id], [id="home"] { scroll-margin-top: 86px; }

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

svg { fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

/* ---------- 顶部信息条 ---------- */
.topbar {
  background: var(--navy);
  color: rgba(255, 255, 255, .85);
  font-size: 13px;
}
.topbar-inner { display: flex; justify-content: space-between; align-items: center; min-height: 36px; gap: 12px; }
.topbar-left { display: flex; gap: 22px; flex-wrap: wrap; }
.topbar-item b { color: #ffc06a; font-weight: 600; letter-spacing: .5px; }
.topbar-item a:hover { color: #fff; }
.topbar-right { letter-spacing: 1px; white-space: nowrap; }

/* ---------- 导航 ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .25s;
}
.header.scrolled { box-shadow: 0 6px 24px rgba(15, 45, 110, .1); }
.header-inner { display: flex; align-items: center; gap: 28px; min-height: 72px; }

.logo { display: flex; align-items: center; gap: 10px; }
.logo-mark { width: 42px; height: 42px; flex: none; }
.logo-text { line-height: 1.15; }
.logo-text b { display: block; font-size: 19px; letter-spacing: 1px; color: var(--navy); }
.logo-text i { display: block; font-style: normal; font-size: 10.5px; letter-spacing: 3.5px; color: var(--muted); }

.nav { display: flex; gap: 6px; margin-left: auto; }
.nav a {
  padding: 8px 14px;
  font-size: 15px;
  color: var(--ink);
  border-radius: 8px;
  transition: color .2s, background .2s;
}
.nav a:hover { color: var(--blue); background: rgba(30, 107, 255, .07); }
.nav a.active { color: var(--blue); font-weight: 600; }

.header-btn { flex: none; }
.nav-toggle { display: none; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  border: 0;
  transition: transform .2s, box-shadow .2s, background .2s, color .2s, border-color .2s;
}
.btn svg { width: 18px; height: 18px; }
.btn:active { transform: scale(.97); }
.btn-lg { padding: 14px 28px; font-size: 16.5px; border-radius: 12px; }

.btn-primary { background: var(--orange); color: #fff; box-shadow: 0 8px 22px rgba(255, 122, 26, .35); }
.btn-primary:hover { background: var(--orange-deep); box-shadow: 0 10px 26px rgba(255, 122, 26, .45); }

.btn-phone { background: var(--blue); color: #fff; }
.btn-phone:hover { background: var(--blue-deep); box-shadow: 0 8px 20px rgba(30, 107, 255, .3); }

.btn-ghost { background: transparent; color: #fff; border: 1.5px solid rgba(255, 255, 255, .55); }
.btn-ghost:hover { border-color: #fff; background: rgba(255, 255, 255, .1); }

.btn-copy { background: #fff; color: var(--blue); border: 1.5px solid rgba(30, 107, 255, .45); }
.btn-copy:hover { background: rgba(30, 107, 255, .08); }

/* ---------- 首屏 ---------- */
.hero {
  position: relative;
  background: var(--grad-hero);
  color: #fff;
  overflow: hidden;
}
.hero-deco { position: absolute; inset: 0; width: 100%; height: 100%; opacity: .9; pointer-events: none; }
.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  align-items: center;
  gap: 30px;
  padding-top: 70px;
  padding-bottom: 90px;
}
.hero-eyebrow {
  display: inline-block;
  font-size: 14px;
  letter-spacing: 2px;
  color: #9fc0ff;
  border: 1px solid rgba(159, 192, 255, .35);
  background: rgba(159, 192, 255, .1);
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.hero h1 { font-size: clamp(30px, 4.2vw, 46px); line-height: 1.25; letter-spacing: 1px; }
.hero-sub { font-size: clamp(19px, 2.4vw, 27px); font-weight: 500; color: #cfe0ff; letter-spacing: 2px; }
.hero-sub em { font-style: normal; color: #ffb340; padding: 0 4px; }
.hero-desc { margin-top: 18px; max-width: 560px; color: rgba(255, 255, 255, .78); font-size: 16px; }
.hero-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.hero-chips li {
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 13.5px;
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .22);
  color: #e8f0ff;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }

.hero-visual { position: relative; display: flex; justify-content: center; }
.hero-visual img {
  width: min(100%, 540px);
  border-radius: 24px;
  background: #102a56;
  border: 1px solid rgba(255, 255, 255, .14);
  box-shadow: 0 26px 60px rgba(4, 14, 36, .55), 0 0 0 6px rgba(255, 255, 255, .04);
  animation: floaty 6s ease-in-out infinite;
}
@keyframes floaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }

.float-chip {
  position: absolute;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--navy);
  background: rgba(255, 255, 255, .92);
  box-shadow: 0 10px 24px rgba(0, 0, 0, .25);
  white-space: nowrap;
}
.chip-a { top: 12%; left: 4%; animation: floaty 6s ease-in-out infinite; }
.chip-b { top: 46%; right: 0; animation: floaty 7s .6s ease-in-out infinite; color: var(--orange-deep); }
.chip-c { bottom: 8%; left: 14%; animation: floaty 6.5s .3s ease-in-out infinite; }

.hero-strip { position: relative; transform: translateY(46px); margin-top: -46px; padding-bottom: 46px; }
.strip-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-hover);
  overflow: hidden;
}
.strip-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 22px 10px;
  border-right: 1px solid var(--line);
}
.strip-item:last-child { border-right: 0; }
.strip-item svg { width: 30px; height: 30px; color: var(--blue); }
.strip-item b { font-size: 15.5px; color: var(--navy); }
.strip-item span { font-size: 12.5px; color: var(--muted); }

/* ---------- 通用 section ---------- */
.section { padding: 84px 0; }
.section-alt { background: var(--bg); }
.sec-head { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.sec-head-left { text-align: left; margin: 0 0 22px; }
.sec-eyebrow { font-size: 13px; letter-spacing: 4px; color: var(--blue); font-weight: 700; margin-bottom: 6px; }
.sec-head h2 { font-size: clamp(24px, 3vw, 34px); color: var(--navy); letter-spacing: 1px; }
.sec-head h2::after {
  content: "";
  display: block;
  width: 46px;
  height: 4px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--blue), var(--orange));
  margin: 14px auto 0;
}
.sec-head-left h2::after { margin-left: 0; }
.sec-desc { margin-top: 14px; color: var(--muted); font-size: 15.5px; }

/* ---------- 服务项目 ---------- */
.s-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.s-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px;
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.s-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: transparent; }
.s-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(30, 107, 255, .12), rgba(30, 107, 255, .04));
  color: var(--blue);
  margin-bottom: 18px;
  transition: background .25s, color .25s, transform .25s;
}
.s-icon svg { width: 28px; height: 28px; }
.s-card:hover .s-icon { background: var(--blue); color: #fff; transform: scale(1.06) rotate(-3deg); }
.s-card h3 { font-size: 18.5px; color: var(--navy); margin-bottom: 8px; }
.s-card p { font-size: 14.5px; color: var(--muted); min-height: 74px; }
.s-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.s-tags span {
  font-size: 12px;
  color: var(--blue-deep);
  background: rgba(30, 107, 255, .08);
  border: 1px solid rgba(30, 107, 255, .18);
  padding: 3px 10px;
  border-radius: 999px;
}

/* ---------- 产品中心 ---------- */
.p-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.p-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .25s, box-shadow .25s;
  display: block;
}
.p-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.p-img {
  background: #f4f8ff;
  aspect-ratio: 1 / 1;
  overflow: hidden;
}
.p-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s; }
.p-card:hover .p-img img { transform: scale(1.06); }
.p-card h3 { font-size: 17px; color: var(--navy); padding: 14px 18px 0; }
.p-card p { font-size: 13.5px; color: var(--muted); padding: 4px 18px 18px; }

/* ---------- 服务流程 ---------- */
.flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  counter-reset: step;
  margin-bottom: 54px;
  position: relative;
}
.flow-step {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 22px 24px;
  text-align: center;
  transition: transform .25s, box-shadow .25s;
}
.flow-step:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.flow-num {
  position: absolute;
  top: -18px;
  left: 50%;
  transform: translateX(-50%);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--blue-deep));
  color: #fff;
  font-style: normal;
  font-weight: 700;
  font-size: 17px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 18px rgba(30, 107, 255, .35);
}
.flow-step h3 { font-size: 17px; color: var(--navy); margin: 10px 0 6px; }
.flow-step p { font-size: 13.5px; color: var(--muted); }

.adv-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.adv-card {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: linear-gradient(135deg, #f2f7ff, #fbfdff);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  transition: transform .25s, box-shadow .25s;
}
.adv-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.adv-icon {
  flex: none;
  width: 50px;
  height: 50px;
  border-radius: 12px;
  background: var(--navy);
  color: #ffc06a;
  display: flex;
  align-items: center;
  justify-content: center;
}
.adv-icon svg { width: 26px; height: 26px; }
.adv-card h3 { font-size: 16.5px; color: var(--navy); margin-bottom: 4px; }
.adv-card p { font-size: 14px; color: var(--muted); }

/* ---------- 关于我们 ---------- */
.about-inner { display: grid; grid-template-columns: 1.2fr .8fr; gap: 44px; align-items: start; }
.about-copy p { margin-bottom: 14px; color: #3b4c60; font-size: 15.5px; }
.about-copy b { color: var(--blue-deep); }
.about-points { margin-top: 20px; display: grid; gap: 12px; }
.about-points li { display: flex; align-items: center; gap: 10px; color: var(--ink); font-size: 15px; font-weight: 500; }
.about-points svg { width: 21px; height: 21px; color: #18a058; flex: none; }

.about-card {
  background: var(--grad-hero);
  color: #fff;
  border-radius: var(--radius);
  padding: 30px 28px;
  box-shadow: var(--shadow-hover);
}
.about-card h3 { font-size: 19px; margin-bottom: 20px; letter-spacing: 1px; }
.about-card ul { display: grid; gap: 18px; }
.about-card li { display: flex; gap: 14px; align-items: flex-start; }
.about-card li > svg { width: 22px; height: 22px; color: #9fc0ff; flex: none; margin-top: 3px; }
.about-card li span { display: block; font-size: 12.5px; color: rgba(255, 255, 255, .55); letter-spacing: 1px; }
.about-card li a, .about-card li { font-size: 15px; color: #eef4ff; }
.about-card li a:hover { color: #ffc06a; }

/* ---------- 联系我们 ---------- */
.c-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-bottom: 34px; }
.c-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-align: center;
  padding: 34px 24px;
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.c-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: rgba(30, 107, 255, .35); }
.c-icon {
  width: 62px;
  height: 62px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(30, 107, 255, .12), rgba(30, 107, 255, .05));
  color: var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
}
.c-icon svg { width: 30px; height: 30px; }
.c-card h3 { font-size: 16.5px; color: var(--navy); margin-bottom: 8px; }
.c-strong { font-size: 19px; font-weight: 700; color: var(--blue-deep); word-break: break-all; }
.c-sub { display: inline-block; margin-top: 8px; font-size: 12.5px; color: var(--muted); background: var(--bg); padding: 3px 12px; border-radius: 999px; }

.c-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  background: linear-gradient(120deg, var(--navy) 0%, var(--navy-2) 60%, #17408a 100%);
  border-radius: var(--radius);
  padding: 34px 38px;
  color: #fff;
  box-shadow: var(--shadow-hover);
}
.c-banner h3 { font-size: clamp(19px, 2.4vw, 24px); margin-bottom: 6px; }
.c-banner p { color: rgba(255, 255, 255, .8); font-size: 15px; }
.c-banner p b { color: #ffc06a; font-size: 18px; letter-spacing: 1px; }
.c-banner-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- 页脚 ---------- */
.footer { background: #081428; color: rgba(255, 255, 255, .72); margin-top: 20px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 34px;
  padding: 56px 22px 40px;
}
.f-about p { margin-top: 16px; font-size: 13.5px; line-height: 1.9; }
.logo-foot .logo-text b { color: #fff; }
.logo-foot .logo-text i { color: rgba(255, 255, 255, .45); }
.f-col h4 { color: #fff; font-size: 15.5px; margin-bottom: 16px; letter-spacing: 1px; }
.f-col ul { display: grid; gap: 10px; font-size: 13.5px; }
.f-col a:hover { color: #ffc06a; }
.footer-bar { border-top: 1px solid rgba(255, 255, 255, .1); padding: 16px 0; }
.footer-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 13px;
}
.footer-bar a { color: rgba(255, 255, 255, .55); }
.footer-bar a:hover { color: #ffc06a; }

/* ---------- 浮动元素 ---------- */
.fab {
  position: fixed;
  right: 22px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 0;
  background: #fff;
  color: var(--navy);
  box-shadow: 0 8px 24px rgba(15, 45, 110, .22);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 90;
  transition: transform .2s, opacity .2s, background .2s;
}
.fab svg { width: 22px; height: 22px; }
.fab:hover { transform: translateY(-3px); }
.fab-sound { bottom: 24px; }
.fab-sound .ic-off { display: none; }
.fab-sound.muted { color: #98a7ba; }
.fab-sound.muted .ic-on { display: none; }
.fab-sound.muted .ic-off { display: block; }
.fab-top { bottom: 80px; opacity: 0; pointer-events: none; }
.fab-top.show { opacity: 1; pointer-events: auto; }

.mobile-call {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 95;
  display: none;
  padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
  background: rgba(255, 255, 255, .96);
  backdrop-filter: blur(8px);
  box-shadow: 0 -6px 20px rgba(15, 45, 110, .12);
}
.mobile-call a {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--orange);
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  padding: 13px;
  border-radius: 12px;
  letter-spacing: 1px;
}
.mobile-call svg { width: 20px; height: 20px; }

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 100px;
  transform: translateX(-50%) translateY(16px);
  background: rgba(10, 28, 61, .92);
  color: #fff;
  font-size: 14px;
  padding: 10px 22px;
  border-radius: 999px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s, transform .25s;
  z-index: 120;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- 入场动画 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  .hero-visual img, .float-chip { animation: none; }
}

/* =========================================================
   响应式
   ========================================================= */
@media (max-width: 1024px) {
  .s-grid { grid-template-columns: repeat(2, 1fr); }
  .p-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-inner { grid-template-columns: 1fr; text-align: center; padding-top: 56px; }
  .hero-copy { display: flex; flex-direction: column; align-items: center; }
  .hero-visual { order: -1; }
  .hero-visual img { width: min(78vw, 420px); }
  .float-chip { display: none; }
  .hero-desc { margin-left: auto; margin-right: auto; }
  .about-inner { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  body { padding-bottom: 76px; }
  .topbar-mail { display: none; }
  .topbar-right { display: none; }
  .header-btn { display: none; }
  .nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    margin-left: auto;
    width: 42px;
    height: 42px;
    background: transparent;
    border: 0;
    padding: 8px;
  }
  .nav-toggle span {
    display: block;
    height: 2.5px;
    width: 100%;
    background: var(--navy);
    border-radius: 2px;
    transition: transform .25s, opacity .25s;
  }
  .nav-toggle.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }
  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    gap: 0;
    padding: 8px 18px 16px;
    box-shadow: 0 16px 30px rgba(15, 45, 110, .14);
    border-top: 1px solid var(--line);
    display: none;
  }
  .nav.open { display: flex; }
  .nav a { padding: 13px 10px; border-radius: 8px; font-size: 16px; }
  .section { padding: 60px 0; }
  .flow { grid-template-columns: repeat(2, 1fr); gap: 26px 14px; }
  .adv-grid { grid-template-columns: 1fr; }
  .c-grid { grid-template-columns: 1fr; }
  .c-banner { flex-direction: column; align-items: flex-start; }
  .strip-inner { grid-template-columns: repeat(2, 1fr); }
  .strip-item:nth-child(2) { border-right: 0; }
  .strip-item:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .mobile-call { display: block; }
  .fab-sound { bottom: 92px; }
  .fab-top { bottom: 148px; }
  .toast { bottom: 160px; }
}

@media (max-width: 560px) {
  .s-grid { grid-template-columns: 1fr; }
  .p-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .p-card h3 { font-size: 15.5px; padding: 12px 14px 0; }
  .p-card p { font-size: 12.5px; padding: 2px 14px 14px; }
  .flow { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 26px; padding-top: 40px; }
  .hero-chips li { padding: 5px 12px; font-size: 12.5px; }
  .hero-cta .btn { width: 100%; }
  .c-banner { padding: 26px 22px; }
  .c-banner-actions { width: 100%; }
  .c-banner-actions .btn { flex: 1; }
}

/* =========================================================
   下载页 / 下载模块
   ========================================================= */
.page-hero { position: relative; background: var(--grad-hero); color: #fff; padding: 54px 0 58px; overflow: hidden; }
.page-hero .hero-deco { position: absolute; inset: 0; width: 100%; height: 100%; opacity: .9; pointer-events: none; }
.page-hero .wrap { position: relative; }
.page-crumb { font-size: 13.5px; color: rgba(255, 255, 255, .6); margin-bottom: 10px; }
.page-crumb a:hover { color: #ffc06a; }
.page-hero h1 { font-size: clamp(26px, 3.4vw, 38px); letter-spacing: 2px; }
.page-hero-desc { margin-top: 10px; color: rgba(255, 255, 255, .75); font-size: 15px; }

.dl-card { background: #fff; border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow); overflow: hidden; margin-bottom: 64px; }
.dl-head { display: flex; align-items: center; gap: 22px; padding: 30px 34px; background: linear-gradient(120deg, var(--navy) 0%, var(--navy-2) 60%, #17408a 100%); color: #fff; }
.dl-icon { flex: none; width: 74px; height: 74px; border-radius: 18px; background: rgba(255, 255, 255, .12); border: 1px solid rgba(255, 255, 255, .2); display: flex; align-items: center; justify-content: center; color: #9fc0ff; }
.dl-icon svg { width: 40px; height: 40px; stroke-width: 2.2; }
.dl-title h2 { font-size: clamp(20px, 2.6vw, 27px); letter-spacing: 1px; }
.dl-title h2 span { font-size: .6em; font-weight: 500; color: #9fc0ff; letter-spacing: 2px; margin-left: 6px; }
.dl-title p { color: rgba(255, 255, 255, .72); font-size: 14.5px; margin-top: 6px; }
.dl-badges { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.dl-badges li { font-size: 12.5px; padding: 3px 12px; border-radius: 999px; background: rgba(255, 255, 255, .12); border: 1px solid rgba(255, 255, 255, .2); }
.dl-badges .b-ver { background: var(--orange); border-color: var(--orange); color: #fff; font-weight: 600; }
.dl-body { padding: 30px 34px 34px; }
.dl-meta { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 26px; }
.dl-meta li { display: flex; gap: 10px; align-items: baseline; font-size: 14.5px; }
.dl-meta b { flex: none; width: 76px; color: var(--navy); }
.dl-meta span { color: var(--muted); }
.dl-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 26px; }
.btn-ghost-dark { background: transparent; color: var(--blue-deep); border: 1.5px solid rgba(30, 107, 255, .4); }
.btn-ghost-dark:hover { background: rgba(30, 107, 255, .08); }
.dl-notes { margin-top: 26px; border-top: 1px dashed var(--line); padding-top: 20px; display: grid; gap: 10px; }
.dl-notes p { font-size: 13.5px; color: var(--muted); }
.dl-notes b { color: var(--ink); }
.dl-notes a { color: var(--blue); font-weight: 600; }

.feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 64px; }
.feat-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 24px; transition: transform .25s, box-shadow .25s; }
.feat-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.feat-icon { width: 48px; height: 48px; border-radius: 12px; background: linear-gradient(135deg, rgba(30, 107, 255, .12), rgba(30, 107, 255, .04)); color: var(--blue); display: flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.feat-icon svg { width: 25px; height: 25px; }
.feat-card h3 { font-size: 16.5px; color: var(--navy); margin-bottom: 6px; }
.feat-card p { font-size: 14px; color: var(--muted); }

.mock-wrap { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 18px; box-shadow: var(--shadow); margin-bottom: 64px; }
.mock-wrap > svg { width: 100%; height: auto; display: block; stroke: none; }
.mock-cap { font-size: 13px; color: var(--muted); text-align: center; margin-top: 12px; }

.manual-wrap { display: grid; grid-template-columns: 250px 1fr; gap: 34px; align-items: start; }
.manual-toc { position: sticky; top: 96px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 20px; box-shadow: var(--shadow); }
.manual-toc h4 { font-size: 15px; color: var(--navy); margin-bottom: 10px; }
.manual-toc a { display: block; font-size: 14px; color: var(--muted); padding: 6px 0; transition: color .2s; }
.manual-toc a:hover { color: var(--blue); }
.manual { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 34px 38px; box-shadow: var(--shadow); }
.manual h2 { font-size: 20px; color: var(--navy); margin: 34px 0 14px; padding-left: 12px; border-left: 4px solid var(--blue); scroll-margin-top: 96px; }
.manual h2:first-child { margin-top: 0; }
.manual h3 { font-size: 16.5px; color: var(--navy); margin: 22px 0 10px; }
.manual p { font-size: 15px; color: #3b4c60; margin-bottom: 10px; }
.manual ul { list-style: disc; margin: 0 0 14px 22px; }
.manual ol { list-style: decimal; margin: 0 0 14px 22px; }
.manual li { font-size: 15px; color: #3b4c60; margin-bottom: 6px; }
.manual li b, .manual p b { color: var(--ink); }
.manual code { font-family: Consolas, Menlo, monospace; font-size: 13.5px; background: var(--bg); border: 1px solid var(--line); border-radius: 6px; padding: 1px 6px; color: var(--blue-deep); word-break: break-all; }
.manual pre.ascii { font-family: Consolas, Menlo, monospace; font-size: 12.5px; line-height: 1.6; background: #0d1b30; color: #cfe0ff; padding: 18px; border-radius: 12px; overflow-x: auto; margin-bottom: 16px; }
.manual table { width: 100%; border-collapse: collapse; margin-bottom: 16px; font-size: 14.5px; }
.manual th, .manual td { border: 1px solid var(--line); padding: 10px 14px; text-align: left; vertical-align: top; }
.manual th { background: var(--bg); color: var(--navy); font-weight: 600; white-space: nowrap; }
.manual tbody tr:nth-child(even) { background: #fafcff; }
.manual blockquote { margin: 0 0 16px; padding: 12px 18px; background: #f2f7ff; border-left: 4px solid var(--blue); border-radius: 0 10px 10px 0; color: #33465c; font-size: 14.5px; }
.manual a { color: var(--blue); }
.manual a:hover { text-decoration: underline; }

/* 首页下载入口模块 */
.dl-teaser { display: grid; grid-template-columns: auto 1fr auto; gap: 24px; align-items: center; background: linear-gradient(135deg, #eef5ff, #fbfdff); border: 1px solid #dbe8ff; border-radius: 18px; padding: 30px 34px; box-shadow: var(--shadow); margin-top: 54px; }
.dl-teaser-copy { min-width: 0; }
.dl-teaser-icon { width: 72px; height: 72px; border-radius: 18px; background: linear-gradient(135deg, var(--navy), #17408a); color: #9fc0ff; display: flex; align-items: center; justify-content: center; }
.dl-teaser-icon svg { width: 38px; height: 38px; stroke-width: 2.2; }
.dl-teaser h3 { font-size: 20px; color: var(--navy); }
.dl-teaser h3 span { font-size: 13px; color: var(--muted); font-weight: 400; letter-spacing: 1px; margin-left: 6px; }
.dl-teaser p { font-size: 14.5px; color: var(--muted); margin-top: 6px; }
.dl-teaser-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.dl-teaser-tags span { font-size: 12px; color: var(--blue-deep); background: rgba(30, 107, 255, .08); border: 1px solid rgba(30, 107, 255, .18); padding: 2px 10px; border-radius: 999px; }
.dl-teaser-actions { display: flex; gap: 12px; flex-wrap: wrap; }

@media (max-width: 1100px) {
  .nav a { padding: 8px 10px; font-size: 14.5px; }
}
@media (max-width: 1024px) {
  .feat-grid { grid-template-columns: repeat(2, 1fr); }
  .manual-wrap { grid-template-columns: 1fr; }
  .manual-toc { position: static; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 16px; }
  .manual-toc h4 { grid-column: 1 / -1; }
}
@media (max-width: 768px) {
  .dl-head { flex-direction: column; align-items: flex-start; padding: 26px 22px; }
  .dl-body { padding: 24px 22px 28px; }
  .dl-meta { grid-template-columns: 1fr; }
  .dl-actions .btn { width: 100%; }
  .dl-teaser { grid-template-columns: 1fr; justify-items: center; text-align: center; padding: 26px 22px; }
  .dl-teaser-actions { width: 100%; }
  .dl-teaser-actions .btn { flex: 1; }
  .manual { padding: 24px 20px; }
  .manual th { white-space: normal; }
}
@media (max-width: 560px) {
  .feat-grid { grid-template-columns: 1fr; }
  .manual-toc { grid-template-columns: 1fr; }
}

/* =========================================================
   软件列表 / 详情页附加样式
   ========================================================= */
.page-hero h1 em { font-style: normal; font-size: .58em; font-weight: 500; color: #9fc0ff; letter-spacing: 2px; margin-left: 8px; }
.page-hero-back { margin-top: 16px; font-size: 14px; }
.page-hero-back a { color: #cfe0ff; border-bottom: 1px solid rgba(207, 224, 255, .4); padding-bottom: 2px; }
.page-hero-back a:hover { color: #ffc06a; border-color: #ffc06a; }

.sw-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.sw-card { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 28px 28px 26px; box-shadow: var(--shadow); transition: transform .25s, box-shadow .25s, border-color .25s; }
.sw-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); border-color: rgba(30, 107, 255, .3); }
.sw-top { display: flex; gap: 18px; align-items: flex-start; }
.sw-icon { flex: none; width: 64px; height: 64px; border-radius: 16px; background: linear-gradient(135deg, var(--navy), #17408a); color: #9fc0ff; display: flex; align-items: center; justify-content: center; }
.sw-icon svg { width: 34px; height: 34px; stroke-width: 2.2; }
.sw-card h3 { font-size: 19px; color: var(--navy); line-height: 1.4; }
.sw-card h3 span { font-size: 12.5px; color: var(--muted); font-weight: 400; letter-spacing: 1px; margin-left: 4px; }
.sw-desc { font-size: 14.5px; color: var(--muted); margin-top: 8px; }
.sw-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.sw-tags span { font-size: 12px; color: var(--blue-deep); background: rgba(30, 107, 255, .08); border: 1px solid rgba(30, 107, 255, .18); padding: 2px 10px; border-radius: 999px; }
.sw-meta { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-top: 18px; padding-top: 18px; border-top: 1px dashed var(--line); }
.sw-meta div { font-size: 12.5px; color: var(--muted); }
.sw-meta b { display: block; font-size: 15px; color: var(--navy); font-weight: 700; }
.sw-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }
.sw-empty { display: flex; align-items: center; justify-content: center; gap: 12px; border: 2px dashed #d7e5fb; border-radius: 18px; background: #fbfdff; padding: 34px 26px; color: var(--muted); font-size: 14.5px; text-align: center; }
.sw-empty svg { width: 22px; height: 22px; flex: none; color: var(--blue); }
.sw-empty a { color: var(--blue); font-weight: 600; }

.dl-notes-standalone { margin-top: 34px; background: #fff; border: 1px solid var(--line); border-top: 1px solid var(--line); border-radius: var(--radius); padding: 22px 26px; box-shadow: var(--shadow); }
.detail-foot { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; margin-top: 46px; }

@media (max-width: 900px) {
  .sw-list { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .sw-card { padding: 22px 20px; }
  .sw-top { flex-direction: column; gap: 14px; }
  .sw-meta { grid-template-columns: 1fr 1fr; }
  .sw-actions .btn { width: 100%; }
  .dl-notes-standalone { padding: 20px 18px; }
  .detail-foot .btn { width: 100%; }
}

/* =========================================================
   双程序下载（服务端 + 客户端）/ 首页下载清单
   ========================================================= */
.dl-pair { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin-top: 26px; }
.dl-pair-item { display: flex; flex-direction: column; gap: 8px; background: #fafcff; border: 1px solid var(--line); border-radius: 14px; padding: 20px 22px; }
.dl-pair-item h4 { font-size: 16.5px; color: var(--navy); }
.dl-pair-item h4 span { display: block; font-size: 12.5px; color: var(--muted); font-weight: 400; font-family: Consolas, Menlo, monospace; margin-top: 3px; }
.dl-pair-item p { font-size: 13.5px; color: var(--muted); }
.dl-pair-item .dl-size { font-size: 12.5px; color: var(--blue-deep); font-weight: 600; }
.dl-pair-item .btn { margin-top: 6px; }
.dl-pair-item .btn:last-child { margin-top: auto; }

.dl-teaser-list { margin-top: 12px; display: grid; gap: 8px; }
.dl-teaser-list li { font-size: 14.5px; }
.dl-teaser-list a { color: var(--blue-deep); font-weight: 600; }
.dl-teaser-list a:hover { color: var(--orange-deep); }
.dl-teaser-list em { font-style: normal; font-size: 12.5px; color: var(--muted); margin-left: 8px; }

@media (max-width: 768px) {
  .dl-pair { grid-template-columns: 1fr; }
  .dl-pair-item .btn { width: 100%; }
}