:root {
    --orange:#ff8a1f;
    --orange2:#ffb14f;
    --ink:#1f232b;
    --muted:#667085;
    --line:#e7eaf0;
    --bg:#f7f8fb;
    --card:#fff;
    --max:1180px
}
* {
    box-sizing:border-box
}
html {
    scroll-behavior:smooth
}
body {
    margin:0;
    font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;
    color:var(--ink);
    background:#fff;
    line-height:1.75
}
a {
    color:inherit;
    text-decoration:none
}
img {
    max-width:100%;
    display:block
}
header {
    position:sticky;
    top:0;
    z-index:20;
    background:rgba(255,255,255,.94);
    backdrop-filter:blur(12px);
    border-bottom:1px solid var(--line)
}
.nav {
    max-width:var(--max);
    margin:auto;
    height:76px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:0 18px
}
.brand img {
    width:180px;
    height:auto
}
.navlinks {
    display:flex;
    gap:24px;
    font-size:15px
}
.btn {
    display:inline-flex;
    align-items:center;
    justify-content:center;
    padding:12px 22px;
    border-radius:12px;
    background:var(--orange);
    color:#fff;
    font-weight:700;
    box-shadow:0 8px 24px rgba(255,138,31,.25)
}
.btn.secondary {
    background:#fff;
    color:var(--ink);
    border:1px solid var(--line);
    box-shadow:none
}
.hero {
    background:linear-gradient(135deg,#fff8ef 0,#fff 52%,#f2f7ff 100%);
    padding:76px 18px
}
.hero-grid {
    max-width:var(--max);
    margin:auto;
    display:grid;
    grid-template-columns:1fr 1.08fr;
    gap:58px;
    align-items:center
}
.kicker {
    display:inline-block;
    padding:7px 12px;
    border-radius:999px;
    background:#fff0df;
    color:#b95700;
    font-weight:700;
    font-size:13px
}
.hero h1 {
    font-size:64px;
    line-height:1.05;
    margin:18px 0
}
.hero h2 {
    font-size:28px;
    margin:0 0 12px
}
.hero p {
    font-size:18px;
    color:var(--muted)
}
.actions {
    display:flex;
    gap:12px;
    flex-wrap:wrap;
    margin-top:26px
}
.hero-card {
    background:#fff;
    padding:16px;
    border:1px solid var(--line);
    border-radius:22px;
    box-shadow:0 30px 70px rgba(31,35,43,.12)
}
.section {
    padding:78px 18px
}
.section.alt {
    background:var(--bg)
}
.wrap {
    max-width:var(--max);
    margin:auto
}
.eyebrow {
    color:#c55b00;
    font-weight:800;
    font-size:13px;
    letter-spacing:.08em;
    text-transform:uppercase
}
.section h2 {
    font-size:38px;
    line-height:1.2;
    margin:8px 0 18px
}
.lead {
    color:var(--muted);
    max-width:820px
}
.grid3 {
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:20px;
    margin-top:32px
}
.card {
    background:#fff;
    border:1px solid var(--line);
    border-radius:18px;
    padding:24px
}
.card h3 {
    margin:8px 0 6px
}
.pill {
    display:inline-block;
    font-size:12px;
    padding:4px 9px;
    border-radius:999px;
    background:#fff1e4;
    color:#a94c00
}
.os {
    display:grid;
    grid-template-columns:repeat(6,1fr);
    gap:12px;
    margin-top:24px
}
.os span,.os a {
    padding:14px 10px;
    text-align:center;
    border:1px solid var(--line);
    border-radius:12px;
    background:#fff
}
.articles {
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:20px;
    margin-top:28px
}
.article-card {
    border:1px solid var(--line);
    border-radius:16px;
    overflow:hidden;
    background:#fff
}
.article-card img {
    aspect-ratio:16/9;
    object-fit:cover
}
.article-card .pad {
    padding:18px
}
.article-card h3 {
    font-size:19px;
    line-height:1.45;
    margin:0 0 8px
}
.meta {
    font-size:13px;
    color:#7b8190
}
.article {
    max-width:860px;
    margin:auto;
    padding:48px 18px 80px
}
.article h1 {
    font-size:42px;
    line-height:1.25
}
.article h2 {
    margin-top:38px;
    font-size:28px
}
.article h3 {
    margin-top:26px
}
.article p,.article li {
    font-size:17px;
    color:#343943
}
.article figure {
    margin:28px 0
}
.article figure img {
    border-radius:18px;
    border:1px solid var(--line)
}
.toc {
    padding:20px 24px;
    background:#fff8ef;
    border-radius:14px;
    border:1px solid #ffe1bf
}
.notice {
    padding:16px 18px;
    border-left:4px solid var(--orange);
    background:#fff8ef;
    margin:24px 0
}
.related {
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:14px
}
.related a {
    border:1px solid var(--line);
    border-radius:12px;
    padding:14px;
    background:#fff
}
.breadcrumbs {
    font-size:13px;
    color:#7b8190;
    margin-bottom:18px
}
footer {
    background:#16191f;
    color:#d8dce3;
    padding:46px 18px
}
.footer {
    max-width:var(--max);
    margin:auto;
    display:grid;
    grid-template-columns:1.5fr 1fr 1fr;
    gap:30px
}
.footer img {
    width:190px;
    filter:brightness(3)
}
.footer small {
    color:#939aa8
}
.search-note {
    font-size:13px;
    color:#7d8493;
    margin-top:10px
}
@media(max-width:900px) {
    .hero-grid,.grid3,.articles,.footer {
        grid-template-columns:1fr
    }
    .os {
        grid-template-columns:repeat(3,1fr)
    }
    .hero h1 {
        font-size:48px
    }
    .navlinks {
        display:none
    }
    .related {
        grid-template-columns:1fr
    }
}
/* 首页原创轮播图 */ .hero-slider {
    position: relative;
    overflow: hidden;
    min-height: 420px;
    background: #111;
}
.hero-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity .55s ease;
}
.hero-slide.active {
    opacity: 1;
    z-index: 1;
}
.hero-slide img {
    width: 100%;
    height: 100%;
    min-height: 420px;
    display: block;
    object-fit: cover;
}
.hero-prev,.hero-next {
    position: absolute;
    z-index: 3;
    top: 50%;
    transform: translateY(-50%);
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 999px;
    background: rgba(0,0,0,.48);
    color: #fff;
    font-size: 30px;
    line-height: 1;
    cursor: pointer;
}
.hero-prev {
    left: 14px;
}
.hero-next {
    right: 14px;
}
.hero-dots {
    position: absolute;
    z-index: 3;
    left: 50%;
    bottom: 14px;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
}
.hero-dots button {
    width: 9px;
    height: 9px;
    padding: 0;
    border: 0;
    border-radius: 999px;
    background: rgba(255,255,255,.55);
    cursor: pointer;
}
.hero-dots button.active {
    background: #ff6a00;
    width: 24px;
}
@media (max-width: 860px) {
    .hero-slider,.hero-slide img {
        min-height: 280px;
    }
}
.os a {
    text-decoration:none;
}