/* ============ 基础 ============ */
* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --navy: #101F35;
  --navy-2: #182C49;
  --orange: #E8720C;
  --orange-2: #FFA032;
  --blue: #1E4C96;
  --cream: #F8F5EE;
  --ink: #22304A;
  --muted: #6B7688;
  --radius: 14px;
  --shadow: 0 6px 24px rgba(16, 31, 53, .08);
}
html { scroll-behavior: smooth; }
body {
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: #fff;
  line-height: 1.75;
}
img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* ============ 头部 ============ */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(16, 31, 53, .96);
  backdrop-filter: blur(6px);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo-mark {
  width: 38px; height: 38px; border-radius: 10px;
  background: var(--orange); color: #fff;
  font-size: 20px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.logo-text { color: #fff; font-size: 17px; font-weight: 600; line-height: 1.2; }
.logo-text small { display: block; font-size: 11px; font-weight: 400; color: #9FB0C8; letter-spacing: 2px; }
.nav { display: flex; gap: 6px; }
.nav a {
  color: #C8D2E0; font-size: 15px; padding: 8px 16px; border-radius: 8px;
  transition: all .2s;
}
.nav a:hover { color: #fff; background: rgba(255,255,255,.08); }
.nav a.active { color: #fff; background: var(--orange); }

/* ============ Hero ============ */
.hero { position: relative; color: #fff; overflow: hidden; }
.hero-bg {
  position: absolute; inset: 0;
  background: url("assets/img/hero.jpg") center/cover no-repeat;
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(13,24,42,.93) 30%, rgba(13,24,42,.62) 70%, rgba(13,24,42,.45));
}
.hero-inner {
  position: relative; z-index: 1;
  padding: 110px 20px 120px;
  max-width: 1080px; margin: 0 auto;
}
.hero-eyebrow { color: var(--orange-2); letter-spacing: 3px; font-size: 15px; margin-bottom: 14px; }
.hero h1 { font-size: 46px; font-weight: 700; letter-spacing: 2px; line-height: 1.3; }
.hero h1 .dot { color: var(--orange-2); margin: 0 8px; }
.hero-sub { margin-top: 18px; font-size: 17px; color: #C8D2E0; max-width: 560px; }
.hero-actions { margin-top: 34px; display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-block; padding: 13px 34px; border-radius: 999px;
  font-size: 16px; font-weight: 500; transition: all .2s;
}
.btn-primary { background: var(--orange); color: #fff; }
.btn-primary:hover { background: #CF6309; transform: translateY(-2px); }
.btn-ghost { border: 1.5px solid rgba(255,255,255,.5); color: #fff; }
.btn-ghost:hover { border-color: #fff; background: rgba(255,255,255,.1); }

/* ============ 通用区块 ============ */
.section { padding: 84px 0; }
.section-alt { background: var(--cream); }
.section-dark { background: var(--navy); }
.kicker { color: var(--orange); font-size: 14px; letter-spacing: 3px; margin-bottom: 6px; }
.kicker.light { color: var(--orange-2); }
.section-title { font-size: 30px; font-weight: 700; margin-bottom: 8px; }
.section-title.light { color: #fff; }
.section-desc { color: var(--muted); margin-bottom: 8px; }
.grid { display: grid; gap: 22px; margin-top: 36px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff; border-radius: var(--radius); padding: 30px 26px;
  box-shadow: var(--shadow); border: 1px solid rgba(16,31,53,.06);
  transition: transform .2s;
}
.card:hover { transform: translateY(-4px); }
.card h3 { font-size: 18px; margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 14.5px; }

/* 品牌寓意 */
.name-card { text-align: center; padding-top: 36px; }
.big-char {
  display: inline-flex; align-items: center; justify-content: center;
  width: 72px; height: 72px; border-radius: 50%;
  background: linear-gradient(135deg, var(--orange), var(--orange-2));
  color: #fff; font-size: 30px; font-weight: 700; margin-bottom: 16px;
}
.name-card h3 { color: var(--navy); }

/* 服务 */
.service-card { position: relative; border-top: 4px solid var(--orange); }
.service-card .num {
  font-size: 14px; font-weight: 700; color: var(--orange);
  letter-spacing: 2px;
}
.service-card h3 { margin-top: 6px; color: var(--navy); }
.banner-strip {
  margin-top: 32px; background: var(--navy); color: #fff;
  border-radius: var(--radius); padding: 20px 30px; text-align: center;
  font-size: 16px; letter-spacing: 1px;
  border-left: 6px solid var(--orange);
}

/* 小饭桌（左右分栏） */
.split {
  display: grid; grid-template-columns: 1.02fr .98fr;
  gap: 36px; align-items: center; margin-top: 36px;
}
.split-media { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.split-media figure {
  border-radius: var(--radius); overflow: hidden;
  aspect-ratio: 4 / 3; background: var(--navy-2);
}
.split-media figure:first-child { grid-column: 1 / -1; aspect-ratio: 16 / 9; }
.split-media img { width: 100%; height: 100%; object-fit: cover; }

.feature-list { list-style: none; display: flex; flex-direction: column; gap: 18px; }
.feature-list li { display: flex; gap: 14px; align-items: flex-start; }
.feature-list .ico {
  flex-shrink: 0; width: 28px; height: 28px; border-radius: 9px;
  background: var(--orange); color: #fff; font-size: 14px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.feature-list h4 { font-size: 16px; color: var(--navy); margin-bottom: 3px; }
.feature-list p { font-size: 14px; color: var(--muted); }

/* AI 双师陪伴 */
.ai-card { border-top: 3px solid var(--blue); }
.ai-card .tag {
  display: inline-block; font-size: 12px; letter-spacing: 1px;
  color: var(--blue); background: rgba(30, 76, 150, .09);
  padding: 4px 12px; border-radius: 999px; margin-bottom: 10px;
}
.ai-card h3 { color: var(--navy); }
.ai-flow {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
  margin-top: 32px; background: var(--navy); color: #fff;
  border-radius: var(--radius); padding: 22px 26px;
}
.ai-flow .step { background: rgba(255,255,255,.09); padding: 8px 16px; border-radius: 999px; font-size: 15px; }
.ai-flow .arrow { color: var(--orange-2); font-size: 16px; }
.ai-note { margin-top: 18px; text-align: center; font-size: 15.5px; color: var(--ink); }

/* 理念 */
.value-card { background: var(--cream); border: none; }
.value-card h3 { color: var(--blue); }
.value-card::before {
  content: ""; display: block; width: 36px; height: 4px;
  background: var(--orange); border-radius: 2px; margin-bottom: 14px;
}

/* 照片墙 */
.photo-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 36px;
}
.photo-grid figure {
  position: relative; border-radius: var(--radius); overflow: hidden;
  aspect-ratio: 4 / 3; background: var(--navy-2);
}
.photo-grid img {
  width: 100%; height: 100%; object-fit: cover; transition: transform .35s;
}
.photo-grid figure:hover img { transform: scale(1.05); }
.photo-grid figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 26px 14px 10px; color: #fff; font-size: 14px;
  background: linear-gradient(transparent, rgba(13,24,42,.85));
}

/* ============ 内页 Hero ============ */
.page-hero {
  background: var(--navy); color: #fff; padding: 64px 0;
}
.page-hero h1 { font-size: 34px; letter-spacing: 2px; }
.page-hero p { color: #9FB0C8; margin-top: 6px; }

/* 新闻 */
.news-list { display: flex; flex-direction: column; gap: 30px; }
.news-item {
  display: flex; gap: 26px; background: #fff;
  border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow); border: 1px solid rgba(16,31,53,.06);
}
.news-item img {
  width: 320px; height: 220px; object-fit: cover; flex-shrink: 0;
}
.news-body { padding: 26px 26px 22px 0; }
.news-body time { color: var(--orange); font-size: 13px; letter-spacing: 1px; }
.news-body h2 { font-size: 19px; margin: 6px 0 10px; }
.news-body p { color: var(--muted); font-size: 14.5px; }
.news-tag {
  display: inline-block; margin-left: 10px; padding: 2px 9px;
  font-size: 12px; color: var(--orange); background: rgba(232,114,12,.10);
  border-radius: 999px; vertical-align: 1px; letter-spacing: .5px;
}
.news-more {
  display: inline-block; margin-top: 12px; font-size: 14px; font-weight: 500;
  color: var(--blue); text-decoration: none; border-bottom: 1px solid rgba(30,76,150,.35);
  padding-bottom: 1px; transition: color .2s, border-color .2s;
}
.news-more:hover { color: var(--orange); border-color: var(--orange); }

/* 联系 */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; align-items: start; }
.contact-cards { display: flex; flex-direction: column; gap: 18px; }
.contact-card h3 { color: var(--navy); display: flex; align-items: center; gap: 8px; }
.contact-card h3::before {
  content: ""; width: 8px; height: 8px; border-radius: 50%;
  background: var(--orange); flex-shrink: 0;
}
.contact-main { font-size: 17px; font-weight: 600; color: var(--ink); margin: 8px 0 4px; }
.contact-tip { font-size: 13.5px; color: var(--muted); }
.contact-photo img { border-radius: var(--radius); box-shadow: var(--shadow); }
.photo-note { text-align: center; color: var(--muted); font-size: 13.5px; margin-top: 12px; }

/* ============ 页脚 ============ */
.site-footer { background: var(--navy); color: #C8D2E0; padding: 48px 0 0; }
.footer-inner {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 24px; padding-bottom: 32px; border-bottom: 1px solid rgba(255,255,255,.12);
}
.footer-brand { color: #fff; font-size: 19px; font-weight: 600; }
.footer-slogan { font-size: 13.5px; margin-top: 6px; }
.footer-links { display: flex; gap: 22px; }
.footer-links a { font-size: 14px; transition: color .2s; }
.footer-links a:hover { color: var(--orange-2); }
.copyright { text-align: center; font-size: 12.5px; padding: 18px 0; color: #7487A3; }
/* 页脚备案信息 */
.beian-bar {
  display: flex; align-items: center; justify-content: center; flex-wrap: wrap;
  gap: 8px 18px; padding: 20px 0 0; font-size: 12.5px; color: #7487A3;
}
.beian-bar a { color: #7487A3; text-decoration: none; display: inline-flex; align-items: center; gap: 6px; transition: color .2s; }
.beian-bar a:hover { color: #FFA032; }
.beian-bar img { height: 16px; width: auto; vertical-align: middle; }
@media (max-width: 600px) {
  .beian-bar { font-size: 12px; gap: 6px 12px; padding: 16px 12px 0; }
}

/* ============ 响应式 ============ */
@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .photo-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; }
  .hero h1 { font-size: 32px; }
}
@media (max-width: 600px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .photo-grid { grid-template-columns: 1fr; }
  .ai-flow { padding: 18px 16px; gap: 6px; }
  .ai-flow .step { font-size: 13.5px; padding: 6px 12px; }
  .news-item { flex-direction: column; }
  .news-item img { width: 100%; height: 190px; }
  .news-body { padding: 0 22px 22px; }
  .hero-inner { padding: 80px 20px 90px; }
  .header-inner { flex-direction: column; height: auto; padding: 12px 0; gap: 8px; }
  .section { padding: 60px 0; }
}