/* ==========================================================================
   {k1=g1} 社交媒体数字营销服务平台 — 酒红高端商务风
   ========================================================================== */

:root {
  --primary: #9e1b32;
  --primary-dark: #7c1226;
  --primary-soft: #fbf1f3;
  --accent: #c8a165;
  --ink: #1f1a1c;
  --ink-2: #40383b;
  --ink-3: #7d7378;
  --line: #ece6e8;
  --bg: #ffffff;
  --bg-soft: #faf7f5;
  --bg-dark: #241a1d;
  --radius: 4px;
  --radius-lg: 6px;
  --shadow: 0 12px 34px rgba(31, 26, 28, .08);
  --shadow-lg: 0 24px 60px rgba(31, 26, 28, .14);
  --font: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--ink-2);
  background: var(--bg);
  font-size: 15px;
  line-height: 1.78;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; transition: color .25s ease; }
a:hover { color: var(--primary); }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
h1, h2, h3, h4 { color: var(--ink); font-weight: 700; line-height: 1.4; letter-spacing: .2px; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 30px; border-radius: var(--radius); font-size: 15px; font-weight: 600;
  border: 1px solid transparent; cursor: pointer; white-space: nowrap;
  transition: all .25s ease; font-family: inherit;
}
.btn-solid { background: var(--primary); color: #fff; }
.btn-solid:hover { background: var(--primary-dark); color: #fff; box-shadow: 0 10px 24px rgba(158, 27, 50, .26); }
.btn-line { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-line:hover { background: var(--primary); color: #fff; }
.btn-sm { padding: 9px 20px; font-size: 13.5px; }
.btn-full { display: flex; width: 100%; }
.mt10 { margin-top: 10px; }

/* ---------- 顶部信息条 ---------- */
.top-bar { background: var(--bg-dark); color: rgba(255, 255, 255, .74); font-size: 13px; line-height: 40px; }
.top-bar-inner { display: flex; justify-content: space-between; align-items: center; }
.top-links { display: flex; align-items: center; gap: 14px; }
.top-links a { color: rgba(255, 255, 255, .74); }
.top-links a:hover { color: var(--accent); }
.top-divider { width: 1px; height: 13px; background: rgba(255, 255, 255, .22); }

/* ---------- 导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 200;
  background: #fff; border-bottom: 1px solid var(--line);
  transition: box-shadow .3s ease;
}
.site-header.scrolled { box-shadow: 0 6px 22px rgba(31, 26, 28, .08); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 82px; }
.brand { display: flex; align-items: center; gap: 11px; }
.brand-mark {
  width: 40px; height: 40px; border-radius: var(--radius);
  background: linear-gradient(135deg, var(--primary) 0%, #c02c47 100%);
  color: #fff; font-weight: 800; font-size: 19px;
  display: flex; align-items: center; justify-content: center;
}
.brand-name { font-size: 21px; font-weight: 800; color: var(--ink); letter-spacing: .5px; }
.brand:hover .brand-name { color: var(--primary); }

.site-nav { display: flex; align-items: center; gap: 2px; }
.nav-link {
  display: block; padding: 9px 16px; font-size: 15px; font-weight: 500;
  color: var(--ink-2); border-radius: var(--radius); position: relative;
}
.nav-link:hover { color: var(--primary); background: var(--primary-soft); }
.nav-link.active { color: var(--primary); font-weight: 700; }
.nav-item { position: relative; }
.nav-drop {
  position: absolute; top: 100%; left: 0; min-width: 200px;
  background: #fff; border: 1px solid var(--line); border-top: 2px solid var(--primary);
  border-radius: 0 0 var(--radius) var(--radius); box-shadow: var(--shadow);
  padding: 8px 0; opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: all .25s ease;
}
.nav-item:hover .nav-drop { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-drop a { display: block; padding: 10px 20px; font-size: 14px; color: var(--ink-2); }
.nav-drop a:hover { background: var(--primary-soft); color: var(--primary); }
.nav-cta {
  margin-left: 12px; background: var(--primary); color: #fff;
  padding: 10px 24px; border-radius: var(--radius); font-size: 14.5px; font-weight: 600;
}
.nav-cta:hover { background: var(--primary-dark); color: #fff; }

.nav-toggle {
  display: none; flex-direction: column; gap: 5px; width: 44px; height: 44px;
  align-items: center; justify-content: center; background: none; border: none; cursor: pointer;
}
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--ink); border-radius: 2px; transition: .3s ease; }
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; }
.hero-media { position: absolute; inset: 0; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; }
.hero-scrim {
  position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(31, 20, 24, .93) 0%, rgba(88, 20, 35, .82) 52%, rgba(158, 27, 50, .44) 100%);
}
.hero-inner { position: relative; z-index: 2; padding: 104px 20px 112px; }
.hero-copy { max-width: 680px; }
.hero-eyebrow {
  display: inline-block; font-size: 12px; letter-spacing: 3px; color: #e6c98f;
  border-left: 3px solid var(--accent); padding-left: 12px; margin-bottom: 22px;
}
.hero h1 { font-size: 44px; line-height: 1.32; color: #fff; margin-bottom: 20px; }
.hero-lead { font-size: 16px; color: rgba(255, 255, 255, .82); line-height: 1.95; margin-bottom: 34px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 28px; }
.hero-actions .btn-line { color: #fff; border-color: rgba(255, 255, 255, .6); }
.hero-actions .btn-line:hover { background: #fff; color: var(--primary); border-color: #fff; }
.hero-quick { display: flex; align-items: center; gap: 12px; font-size: 14px; color: rgba(255, 255, 255, .68); }
.hero-tel { font-size: 20px; font-weight: 800; color: #fff; letter-spacing: .5px; }
.hero-tel:hover { color: var(--accent); }

/* ---------- 区块标题 ---------- */
.block-head { text-align: center; margin-bottom: 48px; }
.block-tag { display: inline-block; font-size: 12px; letter-spacing: 2.5px; color: var(--primary); font-weight: 700; margin-bottom: 12px; }
.block-head h2 { font-size: 31px; margin-bottom: 12px; }
.block-head h2::after { content: ""; display: block; width: 44px; height: 2px; background: var(--accent); margin: 15px auto 0; }
.block-head p { color: var(--ink-3); }
.block-head.light h2 { color: #fff; }
.block-head.light p { color: rgba(255, 255, 255, .7); }
.block-head.light .block-tag { color: #e6c98f; }
.block-tag.light { color: #e6c98f; }

/* ---------- 服务优势 ---------- */
.advantage { padding: 84px 0; background: var(--bg-soft); }
.adv-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; background: #fff; border: 1px solid var(--line); }
.adv-card { padding: 38px 30px; border-right: 1px solid var(--line); position: relative; transition: background .3s ease; }
.adv-card:last-child { border-right: none; }
.adv-card:hover { background: var(--primary-soft); }
.adv-no { font-size: 13px; font-weight: 800; color: var(--accent); letter-spacing: 1px; margin-bottom: 16px; }
.adv-card h3 { font-size: 17.5px; margin-bottom: 10px; }
.adv-card p { font-size: 14px; color: var(--ink-3); }

/* ---------- 关于我们 ---------- */
.about { padding: 88px 0; }
.about-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.about-media { position: relative; }
.about-media img { width: 100%; border-radius: var(--radius); box-shadow: var(--shadow-lg); }
.about-badge {
  position: absolute; right: -18px; bottom: -18px; background: var(--primary); color: #fff;
  padding: 20px 26px; border-radius: var(--radius); text-align: center;
  box-shadow: 0 14px 30px rgba(158, 27, 50, .3);
}
.about-badge strong { display: block; font-size: 20px; letter-spacing: 1px; }
.about-badge span { font-size: 12.5px; color: rgba(255, 255, 255, .82); }
.about-copy h2 { font-size: 30px; margin-bottom: 18px; }
.about-lead { font-size: 16px; color: var(--ink-2); font-weight: 500; margin-bottom: 14px; }
.about-copy p { color: var(--ink-3); margin-bottom: 14px; }
.about-feats { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 24px 0 30px; }
.about-feats li { font-size: 14px; color: var(--ink-2); padding-left: 20px; position: relative; }
.about-feats li::before { content: ""; position: absolute; left: 0; top: 9px; width: 8px; height: 8px; background: var(--accent); border-radius: 1px; }

/* ---------- 平台分类 ---------- */
.platforms { padding: 84px 0; background: var(--bg-soft); }
.plat-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.plat-item {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 26px; transition: all .3s ease; display: block;
}
.plat-item:hover { border-color: var(--primary); transform: translateY(-5px); box-shadow: var(--shadow); }
.plat-ico {
  width: 50px; height: 50px; border-radius: var(--radius); margin-bottom: 16px;
  background: var(--primary-soft); color: var(--primary); font-size: 20px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
}
.plat-item:hover .plat-ico { background: var(--primary); color: #fff; }
.plat-item h3 { font-size: 18px; margin-bottom: 9px; }
.plat-item p { font-size: 14px; color: var(--ink-3); }

/* ---------- 服务中心 ---------- */
.services { padding: 88px 0; background: var(--bg-dark); }
.serv-tabs { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; margin-bottom: 40px; }
.serv-tab {
  padding: 11px 28px; border-radius: var(--radius); border: 1px solid rgba(255, 255, 255, .22);
  background: transparent; color: rgba(255, 255, 255, .78); font-size: 14.5px; font-weight: 600;
  cursor: pointer; font-family: inherit; transition: all .25s ease;
}
.serv-tab:hover { border-color: var(--accent); color: #fff; }
.serv-tab.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.serv-panel { display: none; }
.serv-panel.active { display: block; animation: fadeUp .45s ease; }
.serv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.serv-card {
  background: #fff; border-radius: var(--radius); padding: 30px 26px;
  display: flex; flex-direction: column; transition: transform .3s ease, box-shadow .3s ease;
}
.serv-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.serv-top { margin-bottom: 14px; }
.serv-plat {
  display: inline-block; font-size: 12px; font-weight: 700; color: var(--primary);
  background: var(--primary-soft); padding: 3px 12px; border-radius: 3px; margin-bottom: 10px;
}
.serv-top h3 { font-size: 19px; }
.serv-desc { font-size: 14px; color: var(--ink-3); margin-bottom: 18px; min-height: 46px; }
.serv-spec { display: grid; gap: 9px; margin-bottom: 22px; }
.serv-spec li { font-size: 13.5px; color: var(--ink-2); padding-left: 18px; position: relative; }
.serv-spec li::before { content: ""; position: absolute; left: 0; top: 8px; width: 7px; height: 7px; border: 1.5px solid var(--accent); border-radius: 50%; }
.serv-foot { display: flex; align-items: center; justify-content: space-between; padding-top: 18px; border-top: 1px solid var(--line); margin-top: auto; }
.serv-price { font-size: 16.5px; font-weight: 800; color: var(--primary); }

/* ---------- 服务流程 ---------- */
.process { padding: 88px 0; }
.process-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: step; }
.process-item {
  position: relative; padding: 32px 26px; border: 1px solid var(--line);
  border-radius: var(--radius); background: var(--bg-soft); transition: all .3s ease;
}
.process-item::after {
  content: "→"; position: absolute; right: -17px; top: 50%; transform: translateY(-50%);
  color: var(--accent); font-size: 20px; z-index: 2;
}
.process-item:last-child::after { display: none; }
.process-item:hover { background: #fff; border-color: var(--primary); box-shadow: var(--shadow); }
.process-idx { display: block; font-size: 12px; font-weight: 800; letter-spacing: 1.5px; color: var(--accent); margin-bottom: 14px; }
.process-item h3 { font-size: 18px; margin-bottom: 9px; }
.process-item p { font-size: 13.5px; color: var(--ink-3); }

/* ---------- 服务保障 ---------- */
.guarantee { padding: 84px 0; background: var(--bg-soft); }
.guarantee-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.g-item { background: #fff; border: 1px solid var(--line); border-left: 3px solid var(--primary); border-radius: var(--radius); padding: 26px 24px; }
.g-item h3 { font-size: 16.5px; margin-bottom: 10px; }
.g-item p { font-size: 13.5px; color: var(--ink-3); }

/* ---------- 营销资讯 ---------- */
.news { padding: 88px 0; }
.news-more { text-align: center; margin-top: 42px; }

/* 系统资讯列表基础规则（保留） */
ul.article-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
  list-style: none;
  margin: 0;
  padding: 0;
  width: 100%;
  box-sizing: border-box;
}
ul.article-cards > li.article-card {
  min-width: 0;
  width: auto;
  max-width: none;
  margin: 0;
  float: none;
  box-sizing: border-box;
}
.article-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: transform .3s ease, box-shadow .3s ease; }
.article-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.article-card .card-thumb { width: 100%; overflow: hidden; }
.article-card .card-thumb img { display: block; width: 100%; max-width: 100%; height: auto; object-fit: cover; }
.article-card .card-body { padding: 20px; }
.article-card .card-title { overflow-wrap: anywhere; display: block; font-size: 16.5px; font-weight: 700; color: var(--ink); margin-bottom: 8px; }
.article-card .card-title:hover { color: var(--primary); }
.article-card .card-date { display: block; font-size: 12.5px; color: var(--ink-3); margin-bottom: 10px; }
.article-card .card-summary { overflow-wrap: anywhere; font-size: 13.5px; color: var(--ink-3); line-height: 1.75; }

/* ---------- FAQ ---------- */
.faq { padding: 88px 0; background: var(--bg-soft); }
.faq-list { max-width: 880px; margin: 0 auto; display: grid; gap: 12px; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: border-color .25s ease; }
.faq-item.open { border-color: var(--primary); }
.faq-q { display: flex; align-items: center; gap: 14px; padding: 20px 24px; cursor: pointer; }
.faq-mark { flex: 0 0 auto; width: 26px; height: 26px; border-radius: 3px; background: var(--primary-soft); color: var(--primary); font-size: 13px; font-weight: 800; display: flex; align-items: center; justify-content: center; }
.faq-q h3 { font-size: 16px; flex: 1; font-weight: 600; }
.faq-sign { flex: 0 0 auto; font-size: 22px; color: var(--primary); line-height: 1; transition: transform .3s ease; }
.faq-item.open .faq-sign { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq-a p { padding: 0 24px 22px 64px; font-size: 14.5px; color: var(--ink-3); }

/* ---------- 在线申请 ---------- */
.apply { padding: 88px 0; background: linear-gradient(120deg, #241a1d 0%, #4a1524 60%, #7c1226 100%); }
.apply-inner { display: grid; grid-template-columns: 1fr 1.15fr; gap: 54px; align-items: center; }
.apply-copy h2 { color: #fff; font-size: 30px; margin: 10px 0 16px; }
.apply-copy > p { color: rgba(255, 255, 255, .76); margin-bottom: 30px; }
.apply-contact { display: grid; gap: 18px; }
.ac-item { display: flex; align-items: center; gap: 14px; }
.ac-ico { width: 46px; height: 46px; border-radius: var(--radius); background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .18); display: flex; align-items: center; justify-content: center; font-size: 20px; color: var(--accent); }
.ac-item em { display: block; font-style: normal; font-size: 12.5px; color: rgba(255, 255, 255, .6); }
.ac-item a, .ac-item span { color: #fff; font-size: 16px; font-weight: 600; }
.ac-item a:hover { color: var(--accent); }

.apply-form { background: #fff; border-radius: var(--radius); padding: 36px; box-shadow: var(--shadow-lg); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-field { margin-bottom: 16px; }
.form-field label { display: block; font-size: 13.5px; font-weight: 600; color: var(--ink-2); margin-bottom: 7px; }
.form-field label b { color: var(--primary); }
.form-field input, .form-field select, .form-field textarea {
  width: 100%; padding: 11px 14px; border: 1px solid var(--line); border-radius: var(--radius);
  font-size: 14px; font-family: inherit; color: var(--ink-2); background: var(--bg-soft);
  transition: border-color .25s ease, background .25s ease;
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus { outline: none; border-color: var(--primary); background: #fff; }
.form-field textarea { resize: vertical; }
.form-note { font-size: 12.5px; color: var(--ink-3); margin-top: 12px; text-align: center; }

/* ---------- 页脚 ---------- */
.site-footer { background: #171214; color: rgba(255, 255, 255, .66); }
.footer-main { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 38px; padding: 62px 20px 46px; }
.f-brand-name { font-size: 21px; font-weight: 800; color: #fff; margin-bottom: 16px; }
.f-brand-desc { font-size: 13.5px; line-height: 1.9; margin-bottom: 18px; }
.f-brand-contact { display: grid; gap: 8px; }
.f-tel { font-size: 19px; font-weight: 800; color: var(--accent); }
.f-tel:hover { color: #fff; }
.f-time { font-size: 13px; }
.footer-col h4 { color: #fff; font-size: 16px; margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer-col h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 26px; height: 2px; background: var(--primary); }
.footer-col ul { display: grid; gap: 11px; }
.footer-col ul li a { font-size: 13.5px; color: rgba(255, 255, 255, .66); }
.footer-col ul li a:hover { color: var(--accent); }
.footer-links { display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px 14px; padding: 20px; border-top: 1px solid rgba(255, 255, 255, .1); }
.fl-label { font-size: 13.5px; color: rgba(255, 255, 255, .5); }
.fl-list { display: flex; flex-wrap: wrap; gap: 8px 14px; }
.fl-list a { font-size: 13px; color: rgba(255, 255, 255, .62); }
.fl-list a:hover { color: var(--accent); }
.footer-copy { border-top: 1px solid rgba(255, 255, 255, .1); padding: 20px 0; text-align: center; font-size: 13px; color: rgba(255, 255, 255, .5); }
.footer-copy a { color: rgba(255, 255, 255, .5); }
.footer-copy a:hover { color: var(--accent); }

/* ---------- 侧边栏 ---------- */
.side-bar { position: fixed; right: 16px; bottom: 84px; z-index: 120; display: grid; gap: 8px; }
.side-item {
  width: 56px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 10px 0; display: flex; flex-direction: column; align-items: center; gap: 4px;
  box-shadow: 0 6px 18px rgba(31, 26, 28, .08); transition: all .25s ease;
}
.side-item:hover { background: var(--primary); border-color: var(--primary); }
.side-ico { font-size: 18px; color: var(--primary); }
.side-item:hover .side-ico { color: #fff; }
.side-txt { font-size: 11px; color: var(--ink-3); }
.side-item:hover .side-txt { color: #fff; }

/* ---------- 文章详情 ---------- */
.article-hero { background: var(--bg-soft); padding: 26px 0 34px; border-bottom: 1px solid var(--line); }
.article-head { margin-top: 14px; }
.article-title { font-size: 30px; line-height: 1.45; margin-bottom: 16px; }
.article-meta { display: flex; flex-wrap: wrap; gap: 22px; font-size: 13px; color: var(--ink-3); }
.article-meta span { position: relative; }
.article-meta .meta-cat { color: var(--primary); font-weight: 600; }

.article-body-wrap { padding: 46px 0 70px; }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 36px; align-items: start; }
.article-main { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 38px 40px; min-width: 0; }
.article-cover { border-radius: var(--radius); overflow: hidden; margin-bottom: 28px; }
.article-cover img { width: 100%; height: auto; }
.article-summary { background: var(--primary-soft); border-left: 3px solid var(--primary); border-radius: var(--radius); padding: 18px 22px; margin-bottom: 28px; }
.sum-label { display: inline-block; font-size: 12px; font-weight: 800; color: var(--primary); letter-spacing: 1px; margin-bottom: 8px; }
.article-summary p { font-size: 14.5px; color: var(--ink-2); }
.article-content { font-size: 16px; line-height: 2; color: var(--ink-2); max-width: 100%; }
.article-content p { margin-bottom: 20px; }
.article-content h2 { font-size: 23px; margin: 34px 0 16px; padding-left: 14px; border-left: 4px solid var(--primary); }
.article-content h3 { font-size: 19px; margin: 28px 0 13px; }
.article-content h4 { font-size: 17px; margin: 24px 0 11px; }
.article-content img { max-width: 100%; height: auto; border-radius: var(--radius); margin: 18px 0; }
.article-content ul, .article-content ol { padding-left: 24px; margin-bottom: 20px; }
.article-content ul li { list-style: disc; margin-bottom: 8px; }
.article-content ol li { list-style: decimal; margin-bottom: 8px; }
.article-content blockquote { border-left: 3px solid var(--accent); background: var(--bg-soft); padding: 14px 20px; margin: 20px 0; color: var(--ink-3); }
.article-content a { color: var(--primary); text-decoration: underline; }
.article-content table { width: 100%; border-collapse: collapse; margin: 20px 0; }
.article-content th, .article-content td { border: 1px solid var(--line); padding: 10px 13px; font-size: 14px; }
.article-content th { background: var(--bg-soft); }
.article-date-hidden { display: none; }
.article-tags { margin-top: 30px; padding-top: 22px; border-top: 1px solid var(--line); font-size: 13.5px; color: var(--ink-3); display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.article-tags a { background: var(--bg-soft); border: 1px solid var(--line); padding: 4px 13px; border-radius: 40px; font-size: 13px; color: var(--ink-2); }
.article-tags a:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
.article-nav { display: flex; justify-content: space-between; gap: 14px; margin-top: 30px; padding-top: 24px; border-top: 1px solid var(--line); flex-wrap: wrap; }

.article-side { display: grid; gap: 20px; position: sticky; top: 100px; }
.side-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.side-card h4 { font-size: 16.5px; margin-bottom: 14px; padding-bottom: 12px; border-bottom: 1px solid var(--line); position: relative; }
.side-card p { font-size: 13.5px; color: var(--ink-3); margin-bottom: 16px; }
.side-consult { border-top: 3px solid var(--primary); }
.side-links { display: grid; gap: 11px; }
.side-links li a { font-size: 14px; color: var(--ink-2); padding-left: 16px; position: relative; display: block; }
.side-links li a::before { content: ""; position: absolute; left: 0; top: 9px; width: 6px; height: 6px; border: 1.5px solid var(--accent); border-radius: 50%; }
.side-links li a:hover { color: var(--primary); }

.article-cta { background: var(--bg-dark); padding: 52px 0; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap; }
.cta-copy h2 { color: #fff; font-size: 26px; margin-bottom: 8px; }
.cta-copy p { color: rgba(255, 255, 255, .7); }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.cta-actions .btn-line { color: #fff; border-color: rgba(255, 255, 255, .55); }
.cta-actions .btn-line:hover { background: #fff; color: var(--primary); border-color: #fff; }

/* ---------- 动画 ---------- */
@keyframes fadeUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .adv-list { grid-template-columns: repeat(2, 1fr); }
  .adv-card:nth-child(2) { border-right: none; }
  .adv-card:nth-child(1), .adv-card:nth-child(2) { border-bottom: 1px solid var(--line); }
  .plat-list, .serv-grid, .guarantee-list { grid-template-columns: repeat(2, 1fr); }
  .process-list { grid-template-columns: repeat(2, 1fr); }
  .process-item:nth-child(2)::after { display: none; }
  .footer-main { grid-template-columns: repeat(2, 1fr); }
  .article-layout { grid-template-columns: 1fr; }
  .article-side { position: static; }
}

@media (max-width: 768px) {
  .top-slogan { display: none; }
  .top-bar-inner { justify-content: center; }
  .top-links { gap: 10px; }
  .nav-toggle { display: flex; }
  .site-nav {
    position: fixed; top: 0; right: -100%; width: 80%; max-width: 330px; height: 100vh;
    background: #fff; flex-direction: column; align-items: stretch; gap: 0;
    padding: 86px 22px 30px; box-shadow: -10px 0 34px rgba(31, 26, 28, .16);
    transition: right .35s ease; overflow-y: auto;
  }
  .site-nav.open { right: 0; }
  .nav-link { padding: 14px 10px; border-bottom: 1px solid var(--line); border-radius: 0; font-size: 16px; }
  .nav-item { display: block; }
  .nav-drop { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: none; border-left: 2px solid var(--primary-soft); padding: 0 0 0 12px; margin: 4px 0 8px; }
  .nav-drop a { padding: 8px 12px; font-size: 14px; }
  .nav-cta { margin: 18px 0 0; text-align: center; }
  .hero-inner { padding: 70px 20px 80px; }
  .hero h1 { font-size: 30px; }
  .hero-lead { font-size: 15px; }
  .block-head h2 { font-size: 25px; }
  .about-inner { grid-template-columns: 1fr; gap: 34px; }
  .about-badge { right: 16px; bottom: -16px; }
  .about-feats { grid-template-columns: 1fr; }
  .apply-inner { grid-template-columns: 1fr; gap: 34px; }
  .apply-form { padding: 26px; }
  .form-grid { grid-template-columns: 1fr; }
  .article-title { font-size: 23px; }
  .article-main { padding: 26px 22px; }
  .side-bar { right: 10px; bottom: 76px; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 560px) {
  .adv-list, .plat-list, .serv-grid, .process-list, .guarantee-list, .footer-main { grid-template-columns: 1fr; }
  .adv-card { border-right: none; border-bottom: 1px solid var(--line); }
  .adv-card:last-child { border-bottom: none; }
  .process-item::after { display: none; }
  ul.article-cards { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
}