/* ==========================================================================
   智潮游艇 CHAO YACHTING 官网样式表
   改配色只改下面 :root 里的变量；改文案请去 data/*.json，不要动这里。
   品牌橙 #D77E44 取自 logo 源文件；对白底对比度只有 3.02，
   所以它只用于大号标题、装饰线和按钮底色，正文小字一律用 --brand-deep。
   ========================================================================== */

:root {
  --ink:        #10202B;   /* 深色主色：深色区块背景、标题 */
  --ink-2:      #1B3040;   /* 深色次级：卡片、分隔 */
  --body:       #23323C;   /* 正文（白底 13.2:1） */
  --muted:      #4A5A66;   /* 次要文字（白底 7.1:1） */
  --brand:      #D77E44;   /* 品牌橙：大标题、线条、按钮底 */
  --brand-deep: #A85A22;   /* 深橙：白底上的链接与小字（5.1:1） */
  --sand:       #F7F3EE;   /* 暖白区块底 */
  --line:       #E4DCD3;   /* 细分隔线 */
  --on-dark:    #FFFFFF;
  --on-dark-2:  #B9C6CF;   /* 深底上的次要文字（9.5:1） */

  --wrap: 1180px;
  --gap: clamp(20px, 3vw, 36px);
  --section-y: clamp(60px, 8vw, 116px);
  --radius: 3px;

  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC",
          -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --display: var(--sans);
}

/* 英文站的大标题用衬线体，更接近国际游艇媒体的版面气质 */
html[lang="en"] { --display: Georgia, "Iowan Old Style", "Times New Roman", serif; }

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.75;
  color: var(--body);
  background: #fff;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--brand-deep); text-underline-offset: .22em; }
a:hover { color: var(--ink); }

h1, h2, h3, h4 { font-family: var(--display); color: var(--ink); line-height: 1.24; margin: 0 0 .5em; font-weight: 700; }
h1 { font-size: clamp(32px, 5.2vw, 60px); letter-spacing: -0.01em; }
h2 { font-size: clamp(26px, 3.4vw, 40px); letter-spacing: -0.005em; }
h3 { font-size: clamp(19px, 1.7vw, 23px); }
p  { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }

.wrap { width: min(100% - 2 * var(--gap), var(--wrap)); margin-inline: auto; }
.narrow { max-width: 720px; }

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--ink); color: #fff; padding: 12px 20px;
}
.skip:focus { left: 12px; top: 12px; }

:focus-visible { outline: 3px solid var(--brand); outline-offset: 3px; }

/* ---------- 通用零件 ---------- */

.eyebrow {
  font-size: 12px; letter-spacing: .18em; text-transform: uppercase;
  font-weight: 700; color: var(--brand); margin: 0 0 18px;
  font-family: var(--sans);
}
.eyebrow--dark { color: var(--brand-deep); }

.lede { font-size: clamp(17px, 1.45vw, 19px); color: var(--muted); }

.btn {
  display: inline-block; padding: 13px 28px; border-radius: var(--radius);
  font-weight: 700; font-size: 15px; text-decoration: none;
  border: 1.5px solid transparent; transition: background .18s, color .18s, border-color .18s;
  font-family: var(--sans);
}
.btn--primary { background: var(--brand); color: var(--ink); }   /* 深字压品牌色 5.5:1 */
.btn--primary:hover { background: #C56E36; color: var(--ink); }
.btn--ghost { border-color: rgba(255,255,255,.55); color: #fff; }
.btn--ghost:hover { background: rgba(255,255,255,.12); color: #fff; border-color: #fff; }
.btn--dark { background: var(--ink); color: #fff; }
.btn--dark:hover { background: var(--ink-2); color: #fff; }

.btn-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }

.arrow-link {
  display: inline-flex; align-items: center; gap: .5em;
  font-weight: 700; font-size: 15px; text-decoration: none; color: var(--brand-deep);
}
.arrow-link::after { content: "→"; transition: transform .18s; }
.arrow-link:hover::after { transform: translateX(4px); }
.arrow-link--light { color: var(--brand); }
.arrow-link--light:hover { color: #fff; }

.rule { width: 56px; height: 3px; background: var(--brand); border: 0; margin: 0 0 26px; }

section { padding-block: var(--section-y); }
.section--sand { background: var(--sand); }
.section--ink { background: var(--ink); color: var(--on-dark-2); }
.section--ink h2, .section--ink h3 { color: #fff; }

.section-head { max-width: 760px; margin-bottom: clamp(32px, 4vw, 56px); }

/* ---------- 页头 ---------- */

.site-header {
  position: absolute; inset: 0 0 auto; z-index: 20;
  padding-block: 20px;
}
.site-header__inner { display: flex; align-items: center; gap: 24px; }

.brandmark { display: flex; align-items: center; gap: 12px; text-decoration: none; flex: 0 0 auto; }
.brandmark img { width: 172px; }
@media (max-width: 640px) { .brandmark img { width: 132px; } }

.nav { margin-left: auto; display: flex; align-items: center; gap: clamp(14px, 2vw, 30px); }
.nav a {
  color: #fff; text-decoration: none; font-size: 15px; font-weight: 600;
  padding-block: 6px; border-bottom: 2px solid transparent;
}
.nav a:hover { border-bottom-color: var(--brand); color: #fff; }
.nav a[aria-current="page"] { border-bottom-color: var(--brand); }

.lang {
  margin-left: 6px; padding: 7px 14px; border: 1.5px solid rgba(255,255,255,.5);
  border-radius: var(--radius); color: #fff; text-decoration: none;
  font-size: 13px; font-weight: 700; letter-spacing: .06em;
}
.lang:hover { background: #fff; color: var(--ink); }

/* 移动端菜单：用 <details>，不依赖 JS */
.navmenu { margin-left: auto; display: none; position: relative; }
.navmenu > summary {
  list-style: none; cursor: pointer; color: #fff; font-size: 14px; font-weight: 700;
  padding: 9px 14px; border: 1.5px solid rgba(255,255,255,.5); border-radius: var(--radius);
}
.navmenu > summary::-webkit-details-marker { display: none; }
.navmenu__panel {
  position: absolute; right: 0; top: calc(100% + 10px); z-index: 30;
  background: var(--ink); border: 1px solid rgba(255,255,255,.14);
  min-width: 208px; padding: 8px 0; border-radius: var(--radius);
  box-shadow: 0 18px 40px rgba(0,0,0,.35);
}
.navmenu__panel a {
  display: block; padding: 11px 20px; color: #fff; text-decoration: none; font-size: 15px; font-weight: 600;
}
.navmenu__panel a:hover { background: rgba(255,255,255,.08); color: var(--brand); }
.navmenu__panel hr { border: 0; border-top: 1px solid rgba(255,255,255,.14); margin: 8px 0; }

@media (max-width: 900px) {
  .nav { display: none; }
  .navmenu { display: block; }
}

/* 无大图页面的页头：深色底 */
.header-band { background: var(--ink); position: relative; padding-top: 96px; }

/* ---------- 首屏 ---------- */

.hero { position: relative; color: #fff; display: flex; align-items: flex-end; isolation: isolate; }
.hero--tall { min-height: min(88vh, 780px); }
.hero--short { min-height: min(56vh, 480px); }

.hero__media { position: absolute; inset: 0; z-index: -2; overflow: hidden; background: var(--ink); }
.hero__media img { width: 100%; height: 100%; object-fit: cover; }
/* 三层压暗：顶部保证 logo 与导航可读，左侧保证标题正文可读（文字都靠左），
   底部收边。右侧留亮，照片本身还看得见。 */
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(180deg, rgba(16,32,43,.74) 0%, rgba(16,32,43,0) 26%),
    linear-gradient(95deg,  rgba(16,32,43,.90) 0%, rgba(16,32,43,.70) 32%, rgba(16,32,43,.18) 66%, rgba(16,32,43,0) 88%),
    linear-gradient(0deg,   rgba(16,32,43,.58) 0%, rgba(16,32,43,0) 40%);
}
@media (max-width: 760px) {
  /* 窄屏文字会占满整宽，改成整体压暗 */
  .hero::before {
    background:
      linear-gradient(180deg, rgba(16,32,43,.78) 0%, rgba(16,32,43,.30) 34%),
      linear-gradient(0deg,   rgba(16,32,43,.90) 0%, rgba(16,32,43,.55) 45%, rgba(16,32,43,.15) 80%);
  }
}
.hero__inner { padding-block: clamp(56px, 9vw, 104px); padding-top: clamp(120px, 14vw, 180px); }
.hero h1 { color: #fff; max-width: 15ch; white-space: pre-line; }
.hero .lede { color: #E6EDF1; max-width: 60ch; margin-top: 22px; font-size: clamp(16px, 1.5vw, 19px); }
.hero__inner .eyebrow { color: var(--brand); }

/* ---------- 数据条 ---------- */

.stats { background: var(--ink); color: #fff; padding-block: clamp(44px, 6vw, 72px); }
/* 列数按条目数量固定，避免出现 3+1 这种不对称的换行 */
.stats__grid { display: grid; gap: clamp(24px, 3vw, 40px); grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 480px) { .stats__grid { grid-template-columns: 1fr; } }
@media (min-width: 760px) { .stats__grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (min-width: 980px) { .stats__grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.stat__value {
  font-family: var(--display); font-size: clamp(27px, 3vw, 40px); font-weight: 700;
  color: var(--brand); line-height: 1.1; letter-spacing: -0.015em;
}
.stat__label { color: var(--on-dark-2); font-size: 14.5px; margin-top: 8px; }
.stats__note { color: #8C9BA6; font-size: 12.5px; margin-top: 30px; }
/* 同一个注释样式落在浅色区块时要换成深色，否则对比度不够 */
.section--sand .stats__note,
section:not(.section--ink):not(.stats):not(.cta) .stats__note { color: var(--muted); }

/* ---------- 卡片网格 ---------- */

/* 列数写死而不是用 auto-fit，是为了避免出现 3+1 这种不对称的尾行 */
.grid { display: grid; gap: var(--gap); grid-template-columns: 1fr; }
@media (min-width: 620px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 960px) {
  .grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (min-width: 1000px) {
  .grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

.card {
  background: #fff; border: 1px solid var(--line); border-top: 3px solid var(--brand);
  padding: clamp(24px, 2.6vw, 34px); border-radius: var(--radius);
  transition: transform .2s, box-shadow .2s;
}
.card__no {
  font-family: var(--display); font-size: 13px; font-weight: 700; letter-spacing: .16em;
  color: var(--brand-deep); display: block; margin-bottom: 12px;
}
.card h3 { margin-bottom: .45em; }
.card p { color: var(--muted); font-size: 15.5px; }
a.card { text-decoration: none; display: block; }
a.card:hover { transform: translateY(-3px); box-shadow: 0 14px 34px rgba(16,32,43,.10); }
a.card:hover h3 { color: var(--brand-deep); }

.plain-card { background: #fff; border: 1px solid var(--line); padding: clamp(22px, 2.4vw, 30px); border-radius: var(--radius); }
.plain-card h3 { font-size: 18px; }
.plain-card p { color: var(--muted); font-size: 15.5px; margin: 0; }

/* ---------- 图文分栏 ---------- */

.split { display: grid; gap: clamp(28px, 4.5vw, 64px); align-items: center; grid-template-columns: 1fr; }
.split--top { align-items: start; }
@media (min-width: 900px) { .split { grid-template-columns: 1fr 1fr; } .split--wide-text { grid-template-columns: 1.15fr 1fr; } }
.split__media img { width: 100%; border-radius: var(--radius); }
.split--reverse .split__media { order: 2; }
@media (max-width: 899px) { .split--reverse .split__media { order: 0; } }

/* ---------- 业务体系 ---------- */

.service { padding-block: clamp(48px, 6vw, 84px); border-top: 1px solid var(--line); }
.service:first-of-type { border-top: 0; padding-top: 0; }
.service__head { display: grid; gap: 12px; margin-bottom: 34px; }
@media (min-width: 900px) { .service__head { grid-template-columns: 210px 1fr; gap: 40px; align-items: start; } }
.service__no {
  font-family: var(--display); font-size: clamp(38px, 5vw, 58px); font-weight: 700;
  color: var(--brand); line-height: 1;
}
.service__lede { font-size: clamp(17px, 1.5vw, 20px); color: var(--body); max-width: 58ch; }

.checklist { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.checklist li { position: relative; padding-left: 22px; color: var(--muted); font-size: 15.5px; line-height: 1.65; }
.checklist li::before {
  content: ""; position: absolute; left: 0; top: .62em;
  width: 7px; height: 7px; background: var(--brand); border-radius: 50%;
}
.group-label {
  font-size: 12px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: var(--brand-deep); margin-bottom: 14px; font-family: var(--sans);
}

/* ---------- 媒体品牌 ---------- */

.channel { background: var(--ink-2); border-radius: var(--radius); padding: clamp(26px, 3vw, 40px); }
.channel img { width: min(230px, 70%); margin-bottom: 26px; }
.channel__tagline {
  font-family: var(--display); font-size: clamp(18px, 1.7vw, 22px); line-height: 1.4;
  color: #fff; margin: 0 0 14px;
}
.channel__meta { color: var(--brand); font-size: 14px; font-weight: 700; letter-spacing: .03em; margin: 0; }

/* 只给读屏软件看的文字 */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.chips { display: flex; flex-wrap: wrap; gap: 10px; margin: 0; padding: 0; list-style: none; }
.chips li {
  border: 1px solid var(--line); border-radius: 100px; padding: 8px 18px;
  font-size: 14.5px; color: var(--body); background: #fff;
}
.section--ink .chips li { border-color: rgba(255,255,255,.22); background: transparent; color: var(--on-dark-2); }

.deflist { display: grid; gap: 0; margin: 0; }
.deflist__row { display: grid; gap: 4px; padding: 16px 0; border-top: 1px solid var(--line); }
@media (min-width: 700px) { .deflist__row { grid-template-columns: 210px 1fr; gap: 24px; align-items: baseline; } }
.deflist__row:last-child { border-bottom: 1px solid var(--line); }
.deflist dt { font-weight: 700; color: var(--ink); font-size: 15px; }
.deflist dd { margin: 0; color: var(--muted); font-size: 15.5px; }

.segment { border-left: 3px solid var(--brand); padding: 4px 0 4px 20px; }
.segment strong { display: block; color: var(--ink); font-size: 15.5px; margin-bottom: 4px; }
.segment span { color: var(--muted); font-size: 15px; }

/* ---------- 案例 ---------- */

.case { display: grid; gap: clamp(20px, 3vw, 44px); padding-block: clamp(30px, 4vw, 52px); border-top: 1px solid var(--line); }
@media (min-width: 860px) { .case { grid-template-columns: 1fr 1.05fr; align-items: center; } .case--notext { grid-template-columns: 1fr; } }
.case__media img { width: 100%; border-radius: var(--radius); aspect-ratio: 3 / 2; object-fit: cover; }
.case__year {
  font-family: var(--display); font-size: 14px; font-weight: 700; letter-spacing: .14em;
  color: var(--brand-deep); display: block; margin-bottom: 10px;
}
.case h3 { font-size: clamp(20px, 2vw, 26px); }
.case__role {
  display: inline-block; font-size: 13px; font-weight: 700; color: var(--ink);
  background: rgba(215,126,68,.16); padding: 5px 12px; border-radius: 100px; margin-bottom: 14px;
}
.case p { color: var(--muted); font-size: 15.5px; }

.gallery { display: grid; gap: var(--gap); grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.gallery figure { margin: 0; }
.gallery img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: var(--radius); }
.gallery figcaption { font-size: 14px; color: var(--muted); margin-top: 10px; }

/* ---------- 合作网络 ---------- */

.partners { display: grid; gap: clamp(26px, 3vw, 40px); grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.partner-group ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 7px; }
.partner-group li { font-size: 15px; color: var(--on-dark-2); }
.section--sand .partner-group li { color: var(--body); }

/* ---------- 二维码 ---------- */

.qr-row { display: flex; flex-wrap: wrap; gap: 22px 26px; }
.qr { width: min(180px, 45%); }   /* 45% 保证任何栏宽下都能两个并排 */
.qr img { width: 100%; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.qr figcaption { font-size: 13.5px; color: var(--muted); margin-top: 10px; line-height: 1.5; }

/* ---------- CTA 条 ---------- */

.cta { background: var(--ink); color: var(--on-dark-2); padding-block: clamp(52px, 7vw, 92px); }
.cta h2 { color: #fff; }
.cta p { max-width: 58ch; }

/* ---------- 联系 ---------- */

.contact-block { display: grid; gap: 6px; padding: 20px 0; border-top: 1px solid var(--line); }
.contact-block:last-of-type { border-bottom: 1px solid var(--line); }
.contact-block dt { font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--brand-deep); font-weight: 700; }
.contact-block dd { margin: 0; font-size: 17px; color: var(--ink); }
.contact-block dd a { color: var(--ink); text-decoration-color: var(--brand); }
.contact-block dd a:hover { color: var(--brand-deep); }
.contact-person { font-size: 15px; color: var(--muted); }

/* ---------- 页脚 ---------- */

.site-footer { background: var(--ink); color: var(--on-dark-2); padding-block: clamp(46px, 6vw, 72px); font-size: 14.5px; }
.site-footer__top { display: grid; gap: clamp(28px, 4vw, 56px); grid-template-columns: 1fr; }
@media (min-width: 820px) { .site-footer__top { grid-template-columns: 1.2fr 1fr 1fr; } }
.site-footer img.logo { width: 190px; margin-bottom: 18px; }
.site-footer h4 { color: #fff; font-size: 13px; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 14px; font-family: var(--sans); }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.site-footer a { color: var(--on-dark-2); text-decoration: none; }
.site-footer a:hover { color: var(--brand); }
.site-footer__bottom {
  margin-top: clamp(32px, 4vw, 52px); padding-top: 22px; border-top: 1px solid rgba(255,255,255,.14);
  display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; font-size: 13px; color: #8C9BA6;
}
.site-footer__bottom a { color: #8C9BA6; }

/* ---------- 打印 ---------- */
@media print {
  .site-header, .navmenu, .cta, .btn-row { display: none; }
  .hero { min-height: auto; color: #000; }
  .hero::before, .hero__media { display: none; }
  body { color: #000; font-size: 11pt; }
}