/* =====================================================
   主播新视界 · 站点样式
   文件: /css/main.css
   说明: 独立样式表，深色 hero + 双栏布局
   ===================================================== */
:root {
    --ink: #0f172a;
    --ink-soft: #334155;
    --muted: #64748b;
    --line: #e2e8f0;
    --paper: #f8fafc;
    --teal: #0f766e;
    --teal-deep: #115e59;
    --amber: #d97706;
    --hero-top: #042f2e;
    --hero-bottom: #134e4a;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: "Helvetica Neue", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", Arial, sans-serif;
    color: var(--ink);
    line-height: 1.75;
    background: #ffffff;
}
a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ===== Hero 区 ===== */
.hero {
    background: linear-gradient(135deg, var(--hero-top) 0%, var(--hero-bottom) 60%, #16655f 100%);
    color: #f0fdfa;
    padding: 0;
}
.hero-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1080px;
    margin: 0 auto;
    padding: 18px 28px;
}
.hero-brand { font-size: 1.05rem; font-weight: 700; letter-spacing: 1px; color: #f0fdfa; }
.hero-brand em { font-style: normal; color: #fbbf24; }
.hero-menu { display: flex; gap: 26px; list-style: none; }
.hero-menu a { color: #cffafe; font-size: 0.9rem; }
.hero-menu a:hover { color: #fbbf24; text-decoration: none; }
.hero-inner {
    max-width: 1080px;
    margin: 0 auto;
    padding: 72px 28px 66px;
}
.hero-tag {
    display: inline-block;
    border: 1px solid #2dd4bf;
    color: #99f6e4;
    border-radius: 999px;
    padding: 4px 16px;
    font-size: 0.8rem;
    letter-spacing: 2px;
    margin-bottom: 22px;
}
.hero-inner h1 {
    font-size: 2.5rem;
    line-height: 1.35;
    font-weight: 800;
    letter-spacing: 1px;
    margin-bottom: 18px;
    max-width: 760px;
}
.hero-sub { font-size: 1.08rem; color: #a7f3d0; max-width: 640px; margin-bottom: 26px; }
.hero-meta { font-size: 0.88rem; color: #7dd3c0; display: flex; gap: 24px; flex-wrap: wrap; }
.hero-meta b { color: #f0fdfa; font-weight: 600; }

/* ===== 双栏主体 ===== */
.layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 48px;
    max-width: 1080px;
    margin: 0 auto;
    padding: 52px 28px 64px;
}
.main-col { min-width: 0; }
.prose p { margin-bottom: 20px; color: var(--ink-soft); font-size: 1rem; }

.sec {
    margin-bottom: 46px;
    padding-top: 8px;
}
.sec-head {
    display: flex;
    align-items: baseline;
    gap: 14px;
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--line);
}
.sec-no {
    font-size: 0.85rem;
    font-weight: 800;
    color: var(--amber);
    letter-spacing: 1px;
}
.sec-head h2 { font-size: 1.5rem; font-weight: 800; color: var(--ink); }

.lead { font-size: 1.06rem !important; color: var(--ink) !important; }

.stat-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin: 22px 0 26px;
}
.stat {
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 18px 16px;
    text-align: center;
}
.stat b { display: block; font-size: 1.5rem; color: var(--teal); font-weight: 800; }
.stat span { font-size: 0.82rem; color: var(--muted); }

.figure {
    margin: 26px 0;
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid var(--line);
    background: var(--paper);
}
.figure img { width: 100%; height: auto; display: block; }
.figure figcaption {
    padding: 10px 16px;
    font-size: 0.84rem;
    color: var(--muted);
    background: #ffffff;
}

.checklist { margin: 20px 0 24px; padding-left: 0; list-style: none; }
.checklist li {
    position: relative;
    padding: 10px 0 10px 34px;
    border-bottom: 1px dashed var(--line);
    color: var(--ink-soft);
}
.checklist li:last-child { border-bottom: none; }
.checklist li::before {
    content: "→";
    position: absolute;
    left: 8px;
    color: var(--teal);
    font-weight: 700;
}

.quote-card {
    background: #0f766e;
    color: #ecfdf5;
    border-radius: 12px;
    padding: 26px 28px;
    margin: 28px 0;
    font-size: 1.02rem;
    line-height: 1.9;
}
.quote-card footer { margin-top: 12px; font-size: 0.85rem; color: #99f6e4; }

/* ===== 侧边栏 ===== */
.side-col { display: flex; flex-direction: column; gap: 22px; }
.widget {
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 22px;
}
.widget h3 {
    font-size: 0.95rem;
    font-weight: 800;
    color: var(--ink);
    margin-bottom: 14px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--amber);
    display: inline-block;
}
.widget ul { list-style: none; }
.widget li { padding: 8px 0; font-size: 0.9rem; border-bottom: 1px dashed var(--line); }
.widget li:last-child { border-bottom: none; }
.widget li a { color: var(--ink-soft); }
.widget li a:hover { color: var(--teal); text-decoration: none; }

.author-card { display: flex; gap: 14px; align-items: center; }
.avatar {
    width: 52px; height: 52px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0f766e, #fbbf24);
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-weight: 800; font-size: 1.2rem;
    flex-shrink: 0;
}
.author-card b { display: block; font-size: 0.95rem; color: var(--ink); }
.author-card span { font-size: 0.82rem; color: var(--muted); }

/* ===== 页脚 ===== */
.footer {
    background: #042f2e;
    color: #99f6e4;
    padding: 44px 28px 30px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 30px;
    max-width: 1080px;
    margin: 0 auto;
}
.footer h4 { color: #f0fdfa; font-size: 0.95rem; margin-bottom: 12px; }
.footer p { font-size: 0.85rem; line-height: 1.9; color: #7dd3c0; }
.footer ul { list-style: none; }
.footer li { padding: 5px 0; font-size: 0.85rem; }
.footer a { color: #99f6e4; }
.footer a:hover { color: #fbbf24; text-decoration: none; }
.footer-bottom {
    max-width: 1080px;
    margin: 26px auto 0;
    padding-top: 18px;
    border-top: 1px solid #134e4a;
    font-size: 0.8rem;
    color: #5eead4;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
}

/* ===== 响应式 ===== */
@media (max-width: 900px) {
    .layout { grid-template-columns: 1fr; }
    .side-col { order: -1; }
    .hero-inner h1 { font-size: 1.9rem; }
}
@media (max-width: 640px) {
    .hero-inner { padding: 44px 20px 40px; }
    .hero-menu { display: none; }
    .stat-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .layout { padding: 36px 20px 48px; }
}
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
}