/* ==========================================================================
   广州向日葵技术发展有限公司 —— 官网样式
   纯静态站点，无外部字体/图片/CDN 依赖，离线可直接打开
   ========================================================================== */

:root {
  --brand: #f2a71b;
  --brand-dark: #cc8400;
  --brand-soft: #fff6e4;
  --ink: #1c2430;
  --body-text: #4d5866;
  --muted: #7d8794;
  --line: #e6e9ee;
  --bg: #f6f7f9;
  --white: #ffffff;
  --dark: #151b24;
  --dark-2: #1e2733;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 2px rgba(28, 36, 48, .06), 0 6px 16px rgba(28, 36, 48, .05);
  --shadow-md: 0 2px 6px rgba(28, 36, 48, .08), 0 16px 32px rgba(28, 36, 48, .09);
  --wrap: 1160px;
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

/* ---------- 基础 ---------- */
* { box-sizing: border-box; }
[id] { scroll-margin-top: 100px; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.78;
  color: var(--body-text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; vertical-align: middle; }

a { color: var(--brand-dark); text-decoration: none; transition: color .18s ease; }
a:hover { color: var(--ink); }

h1, h2, h3, h4 { color: var(--ink); margin: 0 0 .6em; font-weight: 600; line-height: 1.34; }
h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.1rem; }
p { margin: 0 0 1em; }
ul, ol { margin: 0 0 1em; padding-left: 1.4em; }
li { margin-bottom: .4em; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 22px; }
.text-center { text-align: center; }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--dark); color: #fff; padding: 10px 16px;
}
.skip-link:focus { left: 0; color: #fff; }

/* ---------- 页头 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .97);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 1px 3px rgba(28, 36, 48, .05);
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 18px; min-height: 74px; flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 40px; height: 40px; flex: 0 0 40px;
  display: grid; place-items: center;
}
.brand-mark img { width: 100%; height: 100%; object-fit: contain; display: block; }
.brand-text { display: flex; flex-direction: column; line-height: 1.3; }
.brand-name { font-size: 1.16rem; font-weight: 700; color: var(--ink); letter-spacing: .4px; }
.brand-sub { font-size: .7rem; color: var(--muted); letter-spacing: 1.6px; }

.site-nav ul { display: flex; list-style: none; margin: 0; padding: 0; gap: 2px; flex-wrap: wrap; }
.site-nav a {
  display: block; padding: 9px 15px; border-radius: 6px;
  color: #3c4756; font-size: .95rem; white-space: nowrap;
}
.site-nav a:hover { background: var(--brand-soft); color: var(--brand-dark); }
.site-nav a.active { color: var(--ink); font-weight: 600; background: var(--brand-soft); }

.nav-toggle {
  display: none; background: var(--bg); border: 1px solid var(--line); color: var(--ink);
  padding: 8px 14px; border-radius: 6px; font-size: .9rem; cursor: pointer; font-family: var(--font);
}

/* ---------- 主视觉 ---------- */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(160deg, #ffffff 0%, #f7f9fc 46%, #eef3f9 100%);
  border-bottom: 1px solid var(--line);
  padding: 72px 0 66px;
}
.hero::before {
  content: ""; position: absolute; right: -120px; top: -140px; width: 520px; height: 520px;
  border-radius: 50%; background: radial-gradient(circle, rgba(242, 167, 27, .16), transparent 68%);
}
.hero .wrap { position: relative; z-index: 1; display: grid; grid-template-columns: 1.15fr .85fr; gap: 52px; align-items: center; }
.hero-tag {
  display: inline-block; margin-bottom: 20px; padding: 5px 14px; border-radius: 40px;
  background: var(--brand-soft); color: var(--brand-dark); font-size: .82rem; letter-spacing: .6px; font-weight: 600;
}
.hero h1 { font-size: 2.5rem; letter-spacing: .6px; margin-bottom: 18px; }
.hero h1 em { font-style: normal; color: var(--brand-dark); }
.hero p.lead { font-size: 1.05rem; color: var(--body-text); max-width: 36em; margin-bottom: 30px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-block; padding: 12px 28px; border-radius: 7px; font-size: .95rem;
  font-weight: 600; border: 1px solid transparent; transition: all .18s ease; cursor: pointer;
}
.btn-primary { background: var(--brand); color: #4a3300; }
.btn-primary:hover { background: #f7b944; color: #4a3300; }
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { background: #2c3949; color: #fff; }
.btn-outline { border-color: var(--line); color: var(--ink); background: #fff; }
.btn-outline:hover { border-color: var(--brand); color: var(--brand-dark); }

/* 主视觉右侧信息卡 */
.hero-card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 28px; box-shadow: var(--shadow-md);
}
.hero-card h3 { font-size: 1rem; margin-bottom: 16px; color: var(--ink); }
.hero-card ul { list-style: none; padding: 0; margin: 0; }
.hero-card li {
  display: flex; gap: 12px; padding: 12px 0; border-bottom: 1px dashed var(--line);
  font-size: .94rem; margin: 0;
}
.hero-card li:last-child { border-bottom: 0; padding-bottom: 0; }
.hero-card .dot {
  flex: 0 0 22px; height: 22px; margin-top: 3px; border-radius: 6px;
  background: var(--brand-soft); color: var(--brand-dark);
  display: grid; place-items: center; font-size: .72rem; font-weight: 700;
}

/* ---------- 数据带 ---------- */
.band { background: var(--dark); color: #b6c1ce; }
.band .wrap {
  display: grid; grid-template-columns: repeat(4, 1fr);
  padding-top: 34px; padding-bottom: 34px; gap: 18px;
}
.band-item { text-align: center; padding: 0 8px; }
.band-item b { display: block; font-size: 1.75rem; color: #fff; font-weight: 700; line-height: 1.2; }
.band-item b i { font-style: normal; color: var(--brand); }
.band-item span { font-size: .86rem; color: #93a0b0; }

/* ---------- 区块 ---------- */
.section { padding: 68px 0; }
.section.alt { background: var(--white); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section.dark { background: var(--dark); color: #b6c1ce; }
.section.dark h2, .section.dark h3 { color: #fff; }

.section-head { max-width: 46em; margin-bottom: 38px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head .eyebrow {
  display: block; font-size: .8rem; letter-spacing: 2px; color: var(--brand-dark);
  text-transform: uppercase; margin-bottom: 10px; font-weight: 600;
}
.section-head h2 { margin-bottom: .4em; }
.section-head p { color: var(--muted); margin: 0; }
.section.dark .section-head p { color: #93a0b0; }

/* ---------- 卡片 ---------- */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 30px 28px; box-shadow: var(--shadow-sm);
  transition: box-shadow .2s ease, transform .2s ease, border-color .2s ease;
}
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); border-color: #dde3ea; }
.card h3 { margin-bottom: .55em; }
.card p:last-child { margin-bottom: 0; }

.card-icon {
  width: 48px; height: 48px; border-radius: 11px; margin-bottom: 18px;
  display: grid; place-items: center; background: var(--brand-soft); color: var(--brand-dark);
}
.card-num {
  display: inline-block; font-size: .78rem; font-weight: 700; letter-spacing: 1.4px;
  color: var(--brand-dark); background: var(--brand-soft); border-radius: 5px;
  padding: 3px 9px; margin-bottom: 14px;
}

/* ---------- 服务条目（横向） ---------- */
.service {
  display: grid; grid-template-columns: 56px 1fr; gap: 22px;
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 30px; box-shadow: var(--shadow-sm); transition: box-shadow .2s ease;
}
.service:hover { box-shadow: var(--shadow-md); }
.service-no {
  width: 56px; height: 56px; border-radius: 50%; display: grid; place-items: center;
  background: var(--ink); color: var(--brand); font-size: 1.15rem; font-weight: 700;
}
.service h3 { margin-bottom: .45em; }
.service .tags { margin-top: 14px; display: flex; gap: 8px; flex-wrap: wrap; }
.tag {
  font-size: .78rem; padding: 3px 10px; border-radius: 5px;
  background: var(--bg); border: 1px solid var(--line); color: #5b6674;
}

/* ---------- 流程步骤 ---------- */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; counter-reset: step; }
.step {
  position: relative; background: var(--white); border: 1px solid var(--line);
  border-radius: var(--radius-lg); padding: 26px 22px; box-shadow: var(--shadow-sm);
}
.step::before {
  counter-increment: step; content: counter(step, decimal-leading-zero);
  display: block; font-size: 1.3rem; font-weight: 700; color: var(--brand);
  margin-bottom: 12px; letter-spacing: 1px;
}
.step h3 { font-size: 1rem; margin-bottom: .5em; }
.step p { font-size: .9rem; margin: 0; color: var(--muted); }

/* ---------- 两栏 ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.split.reverse .split-media { order: 2; }

.panel {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 32px; box-shadow: var(--shadow-sm);
}
.panel h3 { margin-top: 0; }

/* 装饰图形 */
.figure {
  position: relative; min-height: 280px; border-radius: var(--radius-lg); overflow: hidden;
  background: linear-gradient(150deg, #1b2430, #2b3a4d 55%, #3d4f66);
  display: grid; place-items: center; padding: 30px; text-align: center; color: #c8d4e2;
}
.figure::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 38px 38px;
}
.figure::after {
  content: ""; position: absolute; width: 240px; height: 240px; border-radius: 50%;
  background: radial-gradient(circle, rgba(242, 167, 27, .3), transparent 70%);
  right: -60px; bottom: -70px;
}
.figure-inner { position: relative; z-index: 1; }
.figure-inner strong { display: block; color: #fff; font-size: 1.12rem; margin-bottom: 8px; }
.figure-inner span { font-size: .87rem; color: #a8b6c6; }

/* ---------- 列表 ---------- */
.list-check { list-style: none; padding: 0; }
.list-check li { position: relative; padding-left: 28px; margin-bottom: .72em; }
.list-check li::before {
  content: "✓"; position: absolute; left: 0; top: 0;
  color: var(--brand-dark); font-weight: 700; font-size: .95rem;
}

/* ---------- 新闻列表 ---------- */
.news-list { list-style: none; padding: 0; margin: 0; }
.news-row {
  display: grid; grid-template-columns: 96px 1fr auto; gap: 22px; align-items: center;
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 24px; margin-bottom: 12px; transition: box-shadow .2s ease, transform .2s ease;
}
.news-row:hover { box-shadow: var(--shadow-md); transform: translateX(3px); }
.news-date { text-align: center; border-right: 1px solid var(--line); padding-right: 12px; }
.news-date b { display: block; font-size: 1.4rem; color: var(--ink); line-height: 1.15; font-weight: 700; }
.news-date span { font-size: .76rem; color: var(--muted); }
.news-row h3 { font-size: 1.04rem; margin-bottom: .28em; }
.news-row h3 a { color: var(--ink); }
.news-row h3 a:hover { color: var(--brand-dark); }
.news-row p { margin: 0; font-size: .9rem; color: var(--muted); }
.news-kind { font-size: .78rem; padding: 4px 11px; border-radius: 5px; background: var(--brand-soft); color: var(--brand-dark); white-space: nowrap; }

/* ---------- 文章 ---------- */
.article { max-width: 880px; margin: 0 auto; }
.article h2 { margin-top: 1.9em; }
.article h3 { margin-top: 1.5em; }
.article table { width: 100%; border-collapse: collapse; margin: 1.3em 0; font-size: .94rem; }
.article th, .article td { border: 1px solid var(--line); padding: 12px 15px; text-align: left; }
.article th { background: var(--brand-soft); color: var(--ink); font-weight: 600; }
.article blockquote {
  margin: 1.5em 0; padding: 16px 22px; background: var(--white);
  border-left: 4px solid var(--brand); border-radius: 0 var(--radius) var(--radius) 0;
}

/* ---------- 页头条 ---------- */
.page-head {
  background: linear-gradient(140deg, #f9fafc, #eef2f7);
  border-bottom: 1px solid var(--line); padding: 50px 0;
}
.page-head h1 { margin-bottom: .3em; }
.page-head p { margin: 0; color: var(--muted); }
.crumb { font-size: .84rem; color: var(--muted); margin-bottom: 12px; }
.crumb a { color: var(--muted); }
.crumb a:hover { color: var(--brand-dark); }

/* ---------- 信息列表 ---------- */
.info-list { list-style: none; padding: 0; margin: 0; }
.info-list li { display: flex; gap: 16px; padding: 15px 0; border-bottom: 1px dashed var(--line); margin: 0; }
.info-list li:last-child { border-bottom: 0; }
.info-label { flex: 0 0 100px; color: var(--muted); font-size: .9rem; }
.ph { color: #b45309; background: #fef3c7; padding: 1px 6px; border-radius: 4px; font-size: .92rem; }

/* ---------- 提示块 ---------- */
.notice {
  background: var(--white); border: 1px solid var(--line); border-left: 4px solid var(--brand);
  border-radius: 0 var(--radius) var(--radius) 0; padding: 22px 26px; box-shadow: var(--shadow-sm);
}
.notice h3 { margin-top: 0; font-size: 1.05rem; }
.notice p:last-child { margin-bottom: 0; }

/* ---------- CTA ---------- */
.cta {
  background: linear-gradient(135deg, var(--dark), #26313f);
  border-radius: var(--radius-lg); padding: 44px; color: #c3cddb; text-align: center;
}
.cta h2 { color: #fff; margin-bottom: .4em; }
.cta p { color: #9daab9; max-width: 42em; margin: 0 auto 26px; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--dark); color: #93a0b0; font-size: .9rem; padding: 52px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 36px; }
.site-footer h4 { color: #fff; font-size: .95rem; margin-bottom: 1em; }
.site-footer a { color: #93a0b0; }
.site-footer a:hover { color: var(--brand); }
.site-footer ul { list-style: none; padding: 0; }
.site-footer li { margin-bottom: .55em; }
.footer-brand-name {
  display: flex; align-items: center; gap: 9px;
  color: #fff; font-size: 1.12rem; font-weight: 700; margin-bottom: .6em;
}
.footer-logo {
  width: 26px; height: 26px; flex: 0 0 26px; padding: 2px;
  background: var(--white); border-radius: 7px; object-fit: contain;
}
.footer-bottom { margin-top: 44px; border-top: 1px solid rgba(255, 255, 255, .09); padding: 20px 0 24px; font-size: .84rem; color: #6f7d8d; }
.footer-bottom .wrap { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.footer-bottom a { color: #6f7d8d; }

/* ---------- 响应式 ---------- */
@media (max-width: 1000px) {
  .hero .wrap { grid-template-columns: 1fr; gap: 34px; }
  .hero h1 { font-size: 2.1rem; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .split { grid-template-columns: 1fr; gap: 30px; }
  .split.reverse .split-media { order: 0; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .band .wrap { grid-template-columns: repeat(2, 1fr); gap: 24px; }
}

@media (max-width: 700px) {
  .nav-toggle { display: block; }
  .site-nav { display: none; width: 100%; padding-bottom: 14px; }
  .site-nav.open { display: block; }
  .site-nav ul { flex-direction: column; gap: 2px; }
  .site-nav a { padding: 11px 14px; background: var(--bg); }

  .hero { padding: 50px 0 46px; }
  .hero h1 { font-size: 1.68rem; }
  .hero p.lead { font-size: .98rem; }
  .section { padding: 46px 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .news-row { grid-template-columns: 1fr; gap: 12px; }
  .news-date { text-align: left; border-right: 0; border-bottom: 1px solid var(--line); padding: 0 0 8px; }
  .news-date b, .news-date span { display: inline; font-size: .9rem; }
  .news-kind { justify-self: start; }
  .service { grid-template-columns: 1fr; gap: 16px; }
  .info-list li { flex-direction: column; gap: 4px; }
  .info-label { flex: none; }
  .cta { padding: 32px 24px; }
  h1 { font-size: 1.6rem; }
  h2 { font-size: 1.32rem; }
}

@media print {
  .site-header, .site-footer, .hero-actions { display: none; }
  body { background: #fff; }
}