/* 阿敏租车 · 设计系统
   墨青 + 双旗红 + 暖沙 · 宋体标题 · 路线图签名元素 */
:root {
  --ink: #142d3e;
  --ink-deep: #0d2030;
  --red: #b6362b;
  --red-dark: #93271e;
  --sand: #ede7da;
  --sand-light: #f6f3ec;
  --paper: #fbfaf7;
  --text: #232a2f;
  --muted: #5c6b73;
  --line: #d8d2c4;
  --serif: "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation: none !important; transition: none !important; } }
body { font-family: var(--sans); color: var(--text); background: var(--paper); line-height: 1.85; font-size: 16px; }
img { max-width: 100%; display: block; }
a { color: var(--red); text-decoration: none; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--red); outline-offset: 2px; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 22px; }

/* ===== 顶部联系条 ===== */
.topbar { background: var(--ink-deep); color: #c9d4da; font-size: 13px; padding: 7px 0; }
.topbar .wrap { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.topbar a { color: #f0d9b5; }

/* ===== 导航 ===== */
header.site { background: var(--ink); position: sticky; top: 0; z-index: 50; border-bottom: 3px solid var(--red); }
.nav { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; }
.brand { font-family: var(--serif); font-size: 23px; font-weight: 700; color: #fff; letter-spacing: 2px; }
.brand small { display: block; font-family: var(--sans); font-size: 10.5px; font-weight: 400; color: #9fb2bd; letter-spacing: 4px; margin-top: 1px; }
.nav-toggle { display: none; background: none; border: 1px solid #46606f; color: #fff; font-size: 20px; padding: 4px 12px; border-radius: 4px; cursor: pointer; }
nav.menu { display: flex; gap: 4px; flex-wrap: wrap; }
nav.menu a { color: #d4dee4; font-size: 15px; padding: 6px 13px; border-radius: 4px; }
nav.menu a:hover { color: #fff; background: rgba(255,255,255,.08); }
nav.menu a.on { color: #fff; background: var(--red); }
@media (max-width: 860px) {
  .nav-toggle { display: block; }
  nav.menu { display: none; width: 100%; flex-direction: column; padding: 8px 0 14px; }
  nav.menu.open { display: flex; }
  .nav { flex-wrap: wrap; }
}

/* ===== Hero ===== */
.hero { background: linear-gradient(160deg, var(--ink) 0%, var(--ink-deep) 100%); color: #fff; padding: 64px 0 0; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.25fr .9fr; gap: 40px; align-items: center; padding-bottom: 56px; }
@media (max-width: 860px) { .hero-grid { grid-template-columns: 1fr; } }
.eyebrow { display: inline-block; font-size: 12.5px; letter-spacing: 4px; color: #e8c98f; border: 1px solid rgba(232,201,143,.45); padding: 4px 14px; border-radius: 2px; margin-bottom: 22px; }
.hero h1 { font-family: var(--serif); font-size: clamp(30px, 4.6vw, 46px); line-height: 1.35; font-weight: 700; letter-spacing: 1px; }
.hero h1 em { font-style: normal; color: #e8c98f; }
.hero p.lead { margin: 20px 0 30px; color: #b9c7cf; font-size: 17px; max-width: 34em; }
.btn-row { display: flex; gap: 14px; flex-wrap: wrap; }
.btn { display: inline-block; padding: 13px 30px; border-radius: 4px; font-size: 16px; font-weight: 600; letter-spacing: 1px; transition: transform .15s ease, box-shadow .15s ease; }
.btn:hover { transform: translateY(-2px); }
.btn-red { background: var(--red); color: #fff; box-shadow: 0 6px 18px rgba(182,54,43,.35); }
.btn-red:hover { background: var(--red-dark); }
.btn-ghost { border: 1.5px solid #6c828f; color: #e7eef2; }
.btn-ghost:hover { border-color: #fff; color: #fff; }
.trust-chips { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 30px; }
.trust-chips span { font-size: 13px; color: #cfdae0; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.14); padding: 5px 13px; border-radius: 99px; }

/* Hero 行程卡（签名元素之二：行程单美学） */
.manifest { background: var(--paper); color: var(--text); border-radius: 8px; padding: 26px 26px 22px; box-shadow: 0 24px 60px rgba(0,0,0,.35); border-top: 5px solid var(--red); }
.manifest h3 { font-family: var(--serif); font-size: 17px; color: var(--ink); letter-spacing: 2px; border-bottom: 1px dashed var(--line); padding-bottom: 10px; margin-bottom: 14px; }
.manifest table { width: 100%; border-collapse: collapse; font-size: 14px; }
.manifest td { padding: 7px 2px; border-bottom: 1px solid #efeae0; }
.manifest td:last-child { text-align: right; color: var(--ink); font-weight: 600; }
.manifest .note { font-size: 12px; color: var(--muted); margin-top: 10px; }

/* ===== 路线条（签名元素：考察路线图） ===== */
.routeline { background: var(--ink-deep); padding: 26px 0 34px; border-top: 1px solid rgba(255,255,255,.07); }
.routeline .label { text-align: center; font-size: 12px; letter-spacing: 5px; color: #7e95a2; margin-bottom: 18px; }
.stops { display: flex; align-items: flex-start; justify-content: space-between; max-width: 760px; margin: 0 auto; position: relative; padding: 0 10px; }
.stops::before { content: ""; position: absolute; top: 7px; left: 6%; right: 6%; border-top: 2px dashed #4a6575; }
.stop { position: relative; z-index: 1; text-align: center; width: 25%; }
.stop i { display: block; width: 16px; height: 16px; border-radius: 50%; background: var(--ink-deep); border: 3px solid #6f8896; margin: 0 auto 10px; }
.stop.hot i { background: var(--red); border-color: #e8c98f; }
.stop b { display: block; color: #fff; font-size: 14px; font-weight: 600; }
.stop span { display: block; color: #7e95a2; font-size: 11.5px; margin-top: 2px; letter-spacing: 1px; }
@media (max-width: 600px) { .stop span { display: none; } .stop b { font-size: 12px; } }

/* ===== 通用区块 ===== */
section.block { padding: 70px 0; }
section.block.alt { background: var(--sand-light); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.sec-head { max-width: 640px; margin-bottom: 42px; }
.sec-head .tag { font-size: 12.5px; letter-spacing: 4px; color: var(--red); font-weight: 700; }
.sec-head h2 { font-family: var(--serif); font-size: clamp(24px, 3.4vw, 34px); color: var(--ink); margin-top: 10px; line-height: 1.4; }
.sec-head p { color: var(--muted); margin-top: 12px; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
@media (max-width: 860px) { .cards { grid-template-columns: 1fr; } }
.card { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 30px 26px; position: relative; transition: box-shadow .2s ease, transform .2s ease; }
.card:hover { box-shadow: 0 14px 34px rgba(20,45,62,.12); transform: translateY(-3px); }
.card .ico { font-size: 30px; margin-bottom: 14px; }
.card h3 { font-family: var(--serif); font-size: 19px; color: var(--ink); margin-bottom: 10px; }
.card h3 a { color: var(--ink); }
.card p { font-size: 14.5px; color: var(--muted); }
.card .go { display: inline-block; margin-top: 14px; font-size: 14px; font-weight: 600; }

.why { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
@media (max-width: 720px) { .why { grid-template-columns: 1fr; } }
.why div { background: #fff; border-left: 4px solid var(--red); border-radius: 0 8px 8px 0; padding: 22px 24px; border-top: 1px solid var(--line); border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.why b { font-family: var(--serif); color: var(--ink); font-size: 17px; display: block; margin-bottom: 6px; }
.why p { font-size: 14.5px; color: var(--muted); }

/* FAQ */
.faq details { background: #fff; border: 1px solid var(--line); border-radius: 6px; margin-bottom: 12px; overflow: hidden; }
.faq summary { cursor: pointer; padding: 17px 22px; font-weight: 600; color: var(--ink); font-size: 16px; list-style: none; position: relative; }
.faq summary::after { content: "＋"; position: absolute; right: 20px; color: var(--red); font-weight: 400; }
.faq details[open] summary::after { content: "－"; }
.faq details[open] summary { border-bottom: 1px dashed var(--line); }
.faq .a { padding: 16px 22px 20px; color: var(--muted); font-size: 15px; }

/* 表格 */
.tbl { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); font-size: 15px; }
.tbl th { background: var(--ink); color: #fff; font-weight: 600; padding: 13px 16px; text-align: left; letter-spacing: 1px; }
.tbl td { padding: 13px 16px; border-bottom: 1px solid #eee8db; }
.tbl tr:last-child td { border-bottom: 0; }
.tbl td.price { color: var(--red); font-weight: 700; }
.tbl-scroll { overflow-x: auto; }

/* CTA 横幅 */
.cta-band { background: linear-gradient(135deg, var(--red) 0%, var(--red-dark) 100%); color: #fff; padding: 54px 0; }
.cta-band .wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.cta-band h2 { font-family: var(--serif); font-size: clamp(22px, 3vw, 30px); }
.cta-band p { color: #f3d9d5; margin-top: 6px; font-size: 15px; }
.cta-band .btn { background: #fff; color: var(--red-dark); }

/* 文章 */
.article { max-width: 760px; margin: 0 auto; }
.article h1 { font-family: var(--serif); font-size: clamp(26px, 3.8vw, 36px); color: var(--ink); line-height: 1.45; margin-bottom: 14px; }
.article .meta { color: var(--muted); font-size: 13.5px; border-bottom: 1px solid var(--line); padding-bottom: 18px; margin-bottom: 28px; letter-spacing: 1px; }
.article h2 { font-family: var(--serif); font-size: 21px; color: var(--ink); margin: 34px 0 12px; padding-left: 14px; border-left: 4px solid var(--red); }
.article p { margin-bottom: 16px; color: #333b41; }
.article ul, .article ol { margin: 0 0 16px 24px; color: #333b41; }
.article li { margin-bottom: 8px; }
.article .tipbox { background: var(--sand-light); border: 1px solid var(--line); border-left: 4px solid var(--red); border-radius: 0 6px 6px 0; padding: 18px 22px; margin: 24px 0; font-size: 15px; }

/* 文章列表 */
.post-list { display: grid; gap: 18px; }
.post { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 24px 28px; transition: box-shadow .2s ease; }
.post:hover { box-shadow: 0 12px 30px rgba(20,45,62,.1); }
.post h3 { font-family: var(--serif); font-size: 19px; line-height: 1.5; }
.post h3 a { color: var(--ink); }
.post h3 a:hover { color: var(--red); }
.post p { color: var(--muted); font-size: 14.5px; margin-top: 8px; }
.post .more { font-size: 14px; font-weight: 600; margin-top: 10px; display: inline-block; }

/* 联系页 */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
@media (max-width: 720px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-card { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 30px; text-align: center; }
.contact-card .ico { font-size: 36px; }
.contact-card h3 { font-family: var(--serif); color: var(--ink); margin: 12px 0 6px; font-size: 19px; }
.contact-card .big { font-size: 21px; font-weight: 700; color: var(--red); letter-spacing: 1px; margin: 8px 0; }
.contact-card p { color: var(--muted); font-size: 14px; }
.contact-card .btn { margin-top: 14px; }

/* 页脚 */
footer.site { background: var(--ink-deep); color: #93a7b2; padding: 50px 0 30px; font-size: 14px; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 36px; margin-bottom: 34px; }
@media (max-width: 720px) { .foot-grid { grid-template-columns: 1fr; } }
footer .brand { font-size: 20px; }
footer h4 { color: #d9e2e7; font-size: 15px; margin-bottom: 14px; letter-spacing: 2px; }
footer a { color: #93a7b2; display: block; margin-bottom: 9px; }
footer a:hover { color: #fff; }
.copyright { border-top: 1px solid rgba(255,255,255,.1); padding-top: 22px; font-size: 12.5px; color: #5f7480; text-align: center; line-height: 2; }

/* 悬浮联系按钮 */
.float-contact { position: fixed; right: 16px; bottom: 22px; z-index: 99; display: flex; flex-direction: column; gap: 10px; }
.float-contact a { width: 54px; height: 54px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 24px; color: #fff; box-shadow: 0 8px 22px rgba(0,0,0,.28); transition: transform .15s ease; }
.float-contact a:hover { transform: scale(1.08); }
.fc-wa { background: #1faf57; }
.fc-wx { background: var(--ink); border: 2px solid #e8c98f; font-size: 13px; font-weight: 700; letter-spacing: 1px; }

/* 面包屑 */
.crumb { font-size: 13px; color: var(--muted); padding: 18px 0 0; }
.crumb a { color: var(--muted); }
.crumb a:hover { color: var(--red); }

/* 页面标题带 */
.page-head { background: linear-gradient(160deg, var(--ink) 0%, var(--ink-deep) 100%); color: #fff; padding: 52px 0; }
.page-head h1 { font-family: var(--serif); font-size: clamp(26px, 4vw, 38px); letter-spacing: 1px; }
.page-head p { color: #b9c7cf; margin-top: 12px; max-width: 38em; font-size: 16px; }