/* ============================================================
   陈湛辉律师个人网站 — 全局样式
   设计基调：专业、信赖、温和（婚姻家事定位）
   品牌色：深蓝（信赖） + 暖金（温度） + 米白底
   ============================================================ */

:root {
  --c-navy: #1f3a5f;        /* 主色：深蓝，信赖感 */
  --c-navy-dark: #16293f;   /* 深蓝阴影 */
  --c-gold: #c9a24b;        /* 点缀：暖金，温度 */
  --c-gold-soft: #e8d9ad;   /* 浅金 */
  --c-bg: #faf8f3;          /* 米白底 */
  --c-surface: #ffffff;     /* 卡片底 */
  --c-text: #2b2b2b;        /* 正文 */
  --c-text-soft: #5b6470;   /* 次要文字 */
  --c-line: #e6e1d6;        /* 分割线 */
  --c-danger: #b4453a;      /* 警示/免责 */
  --radius: 12px;
  --shadow: 0 6px 24px rgba(31, 58, 95, 0.08);
  --shadow-hover: 0 12px 32px rgba(31, 58, 95, 0.16);
  --maxw: 1100px;
  --font: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--c-navy); text-decoration: none; }
a:hover { color: var(--c-gold); }

img { max-width: 100%; height: auto; display: block; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--c-line);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--c-navy); }
.brand .logo {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--c-navy); color: var(--c-gold-soft);
  display: grid; place-items: center; font-size: 16px; font-weight: 700;
}
.brand .name { font-size: 17px; letter-spacing: .5px; }
.brand .name small { display: block; font-size: 11px; font-weight: 400; color: var(--c-text-soft); letter-spacing: 0; }

.nav-links { display: flex; align-items: center; gap: 28px; list-style: none; }
.nav-links a { color: var(--c-text); font-size: 15px; font-weight: 500; }
.nav-links a:hover, .nav-links a.active { color: var(--c-navy); }
.nav-links a.active { position: relative; }
.nav-links a.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -6px;
  height: 2px; background: var(--c-gold); border-radius: 2px;
}

.nav-toggle {
  display: none; background: none; border: 0; cursor: pointer;
  width: 40px; height: 40px; flex-direction: column; gap: 5px; justify-content: center; align-items: center;
}
.nav-toggle span { width: 22px; height: 2px; background: var(--c-navy); transition: .3s; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-block; padding: 12px 26px; border-radius: 999px;
  font-weight: 600; font-size: 15px; cursor: pointer; border: 0;
  transition: transform .15s ease, box-shadow .2s ease;
}
.btn-primary { background: var(--c-navy); color: #fff; }
.btn-primary:hover { background: var(--c-navy-dark); color: #fff; transform: translateY(-1px); }
.btn-gold { background: var(--c-gold); color: #fff; }
.btn-gold:hover { background: #b8913c; color: #fff; transform: translateY(-1px); }
.btn-ghost { background: transparent; border: 1px solid var(--c-navy); color: var(--c-navy); }
.btn-ghost:hover { background: var(--c-navy); color: #fff; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--c-navy) 0%, var(--c-navy-dark) 100%);
  color: #fff; padding: 72px 0 80px; position: relative; overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; right: -80px; top: -80px;
  width: 320px; height: 320px; border-radius: 50%;
  background: radial-gradient(circle, rgba(201,162,75,.25), transparent 70%);
}
.hero .container { position: relative; z-index: 1; }
.hero .eyebrow { color: var(--c-gold-soft); font-size: 14px; letter-spacing: 3px; text-transform: uppercase; margin-bottom: 14px; }
.hero h1 { font-size: 40px; line-height: 1.3; margin-bottom: 18px; font-weight: 700; }
.hero h1 .hl { color: var(--c-gold-soft); }
.hero p.lead { font-size: 18px; color: #e9eef5; max-width: 620px; margin-bottom: 30px; }
.hero .actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- 信任条 ---------- */
.trustbar { background: var(--c-surface); border-bottom: 1px solid var(--c-line); }
.trustbar .container { display: flex; gap: 40px; flex-wrap: wrap; padding: 18px 20px; }
.trustbar .item { display: flex; align-items: center; gap: 10px; color: var(--c-text-soft); font-size: 14px; }
.trustbar .item strong { color: var(--c-navy); }

/* ---------- 区块通用 ---------- */
.section { padding: 64px 0; }
.section.alt { background: var(--c-surface); }
.section-title { text-align: center; margin-bottom: 40px; }
.section-title .kicker { color: var(--c-gold); font-size: 13px; letter-spacing: 2px; font-weight: 600; }
.section-title h2 { font-size: 28px; color: var(--c-navy); margin-top: 8px; }
.section-title p { color: var(--c-text-soft); margin-top: 10px; max-width: 560px; margin-left: auto; margin-right: auto; }

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

.card {
  background: var(--c-surface); border: 1px solid var(--c-line);
  border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow);
  transition: transform .2s ease, box-shadow .2s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.card .icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: var(--c-gold-soft); color: var(--c-navy);
  display: grid; place-items: center; font-size: 22px; margin-bottom: 16px;
}
.card h3 { color: var(--c-navy); font-size: 19px; margin-bottom: 10px; }
.card p { color: var(--c-text-soft); font-size: 15px; }

/* ---------- 文章列表 ---------- */
.article-card { display: flex; flex-direction: column; }
.article-card .thumb {
  height: 160px; border-radius: 10px; margin-bottom: 16px;
  background: linear-gradient(135deg, var(--c-navy), var(--c-gold));
  display: grid; place-items: center; color: #fff; font-size: 28px;
}
.article-card .meta { font-size: 13px; color: var(--c-text-soft); margin-bottom: 6px; }
.article-card h3 { font-size: 18px; margin-bottom: 8px; }
.article-card h3 a { color: var(--c-navy); }
.article-card p { color: var(--c-text-soft); font-size: 14px; flex: 1; }
.article-card .more { margin-top: 14px; font-weight: 600; color: var(--c-gold); }

/* ---------- 关于页 ---------- */
.about-grid { display: grid; grid-template-columns: 280px 1fr; gap: 40px; align-items: start; }
.avatar {
  width: 100%; aspect-ratio: 1; border-radius: 16px;
  background: linear-gradient(135deg, var(--c-navy), var(--c-gold));
  display: grid; place-items: center; color: #fff; font-size: 60px; font-weight: 700;
  box-shadow: var(--shadow);
}
.about-text h2 { color: var(--c-navy); font-size: 24px; margin-bottom: 6px; }
.about-text .role { color: var(--c-gold); font-weight: 600; margin-bottom: 18px; }
.about-text p { margin-bottom: 14px; color: var(--c-text); }
.facts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 22px; }
.facts .fact { background: var(--c-bg); border: 1px solid var(--c-line); border-radius: 10px; padding: 16px; }
.facts .fact strong { display: block; color: var(--c-navy); font-size: 22px; }
.facts .fact span { font-size: 13px; color: var(--c-text-soft); }

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contact-info .item { display: flex; gap: 14px; margin-bottom: 22px; }
.contact-info .item .ic { width: 42px; height: 42px; border-radius: 10px; background: var(--c-navy); color: var(--c-gold-soft); display: grid; place-items: center; flex-shrink: 0; }
.contact-info .item .ic.call { background: var(--c-gold); color: #fff; }
.contact-info .item h4 { color: var(--c-navy); font-size: 15px; }
.contact-info .item a.tel { font-size: 20px; font-weight: 700; color: var(--c-navy); }
.contact-info .item a.tel:hover { color: var(--c-gold); }

.form-box { background: var(--c-surface); border: 1px solid var(--c-line); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); }
.form-box label { display: block; font-size: 14px; font-weight: 600; color: var(--c-navy); margin-bottom: 6px; }
.form-box input, .form-box textarea, .form-box select {
  width: 100%; padding: 11px 14px; border: 1px solid var(--c-line);
  border-radius: 8px; font-family: var(--font); font-size: 15px; margin-bottom: 16px;
  background: var(--c-bg); color: var(--c-text);
}
.form-box input:focus, .form-box textarea:focus, .form-box select:focus {
  outline: 2px solid var(--c-gold); outline-offset: 1px; border-color: var(--c-gold);
}
.form-box textarea { resize: vertical; min-height: 110px; }
.form-note { font-size: 12px; color: var(--c-text-soft); margin-top: 4px; }
.form-ok { display: none; background: #e7f3ea; color: #2c6b3f; border: 1px solid #b6dcc0; padding: 12px 14px; border-radius: 8px; margin-bottom: 16px; font-size: 14px; }

/* ---------- 免责声明条 ---------- */
.disclaimer {
  background: #fff7f0; border: 1px solid #f0d9c4; border-radius: 10px;
  padding: 16px 18px; font-size: 13px; color: var(--c-danger); margin-top: 28px;
}
.disclaimer strong { color: var(--c-danger); }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--c-navy-dark); color: #cdd6e2; padding: 44px 0 24px; }
.site-footer h4 { color: #fff; font-size: 15px; margin-bottom: 14px; }
.site-footer a { color: #cdd6e2; }
.site-footer a:hover { color: var(--c-gold-soft); }
.site-footer .cols { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px; }
.site-footer .brand-f { color: #fff; font-weight: 700; font-size: 18px; margin-bottom: 10px; }
.site-footer .legal { font-size: 12px; color: #8fa0b5; margin-top: 26px; border-top: 1px solid rgba(255,255,255,.12); padding-top: 18px; line-height: 1.9; }
.site-footer .legal a { color: #8fa0b5; text-decoration: underline; }
.site-footer ul { list-style: none; }
.site-footer ul li { margin-bottom: 8px; font-size: 14px; }

/* ---------- 404 ---------- */
.notfound { text-align: center; padding: 100px 0; }
.notfound .code { font-size: 96px; color: var(--c-gold); font-weight: 800; line-height: 1; }
.notfound h1 { color: var(--c-navy); margin: 16px 0; }

/* ---------- 响应式 ---------- */
@media (max-width: 860px) {
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .about-grid .avatar { max-width: 220px; }
  .site-footer .cols { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .nav-links {
    position: fixed; top: 64px; left: 0; right: 0;
    background: #fff; flex-direction: column; gap: 0;
    border-bottom: 1px solid var(--c-line);
    transform: translateY(-120%); transition: transform .3s ease;
    box-shadow: var(--shadow); padding: 8px 0;
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; padding: 14px 20px; }
  .nav-links a.active::after { display: none; }
  .nav-toggle { display: flex; }
  .hero h1 { font-size: 30px; }
  .hero p.lead { font-size: 16px; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .facts { grid-template-columns: 1fr 1fr; }
  .site-footer .cols { grid-template-columns: 1fr; }
}

/* 无障碍：保留焦点环 */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 3px solid var(--c-gold); outline-offset: 2px;
}