:root {
    --bg: #f7f5ef;
    --surface: #ffffff;
    --soft: #eef2f0;
    --ink: #1f2933;
    --muted: #65727e;
    --line: #dfe5e1;
    --brand: #1f5b4f;
    --brand-deep: #133b35;
    --accent: #b98b45;
    --shadow: 0 20px 50px rgba(23, 43, 39, .12);
    --radius: 24px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; color: var(--ink); background: var(--bg); line-height: 1.7; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.site-header { background: rgba(247, 245, 239, .96); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 20; backdrop-filter: blur(16px); }
.topbar { display: flex; justify-content: space-between; gap: 16px; padding: 8px clamp(18px, 4vw, 56px); font-size: 14px; color: var(--muted); border-bottom: 1px solid var(--line); }
.navbar { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 14px clamp(18px, 4vw, 56px); }
.brand-logo, .footer-logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; color: var(--brand-deep); font-size: 22px; }
.brand-logo img, .footer-logo img { border-radius: 14px; box-shadow: 0 10px 20px rgba(31,91,79,.18); }
.nav-links { list-style: none; margin: 0; padding: 0; display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.nav-links a { display: block; padding: 9px 12px; border-radius: 999px; color: var(--muted); font-size: 15px; }
.nav-links a:hover, .nav-links a.active { background: var(--brand); color: white; }
.nav-toggle { display: none; border: 1px solid var(--line); background: var(--surface); border-radius: 999px; padding: 8px 14px; }
.search-wrap { padding: 0 clamp(18px, 4vw, 56px) 16px; }
.search-form { display: grid; grid-template-columns: auto 1fr auto; gap: 10px; align-items: center; background: var(--surface); border: 1px solid var(--line); padding: 10px; border-radius: 18px; box-shadow: 0 10px 26px rgba(23,43,39,.07); }
.search-form label { font-weight: 700; color: var(--brand-deep); white-space: nowrap; }
.search-form input, .contact-form select, .contact-form textarea { width: 100%; border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; font: inherit; background: #fbfcfa; }
.search-form button, .btn { border: 0; border-radius: 999px; padding: 12px 20px; font-weight: 800; cursor: pointer; display: inline-flex; justify-content: center; align-items: center; gap: 8px; }
.search-form button, .btn.primary { background: var(--brand); color: white; box-shadow: 0 14px 26px rgba(31,91,79,.2); }
.btn.ghost { background: var(--surface); color: var(--brand-deep); border: 1px solid var(--line); }
.search-note { margin: 8px 0 0; color: var(--muted); font-size: 14px; }
.main-content { width: min(1180px, calc(100% - 36px)); margin: 0 auto; }
.hero { min-height: 680px; display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(320px, .9fr); align-items: center; gap: 34px; padding: 58px 0; }
.eyebrow { color: var(--accent); font-weight: 800; letter-spacing: .08em; text-transform: uppercase; margin: 0 0 10px; }
h1, h2, h3 { color: var(--brand-deep); line-height: 1.22; margin-top: 0; }
h1 { font-size: clamp(36px, 6vw, 68px); letter-spacing: -.04em; }
h2 { font-size: clamp(26px, 4vw, 42px); letter-spacing: -.03em; }
h3 { font-size: 20px; }
.hero-subtitle { font-size: clamp(17px, 2vw, 21px); color: var(--muted); max-width: 760px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin: 28px 0; }
.hero-points { padding: 0; margin: 0; list-style: none; display: grid; gap: 12px; }
.hero-points li { background: rgba(255,255,255,.74); border: 1px solid var(--line); padding: 12px 16px; border-radius: 16px; }
.hero-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); transform: rotate(1deg); }
.hero-card img { border-radius: 20px; aspect-ratio: 4 / 3; object-fit: cover; }
.hero-card p { color: var(--muted); font-size: 14px; }
.consultant-mini { display: grid; gap: 4px; border-top: 1px solid var(--line); padding-top: 14px; }
.consultant-mini span { color: var(--muted); }
.section { padding: 72px 0; }
.section.soft { width: calc(100% + 36px); margin-left: -18px; padding-left: 18px; padding-right: 18px; background: linear-gradient(135deg, rgba(238,242,240,.95), rgba(255,255,255,.75)); border-radius: 34px; }
.section-head { max-width: 800px; margin-bottom: 28px; }
.section-head p { color: var(--muted); }
.cards { display: grid; gap: 18px; }
.cards.four { grid-template-columns: repeat(4, 1fr); }
.cards.three { grid-template-columns: repeat(3, 1fr); }
.feature-card, .cards article, .review-card, .timeline article, .scenario-grid article, .contact-aside, .contact-form, .image-panel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; box-shadow: 0 14px 30px rgba(23,43,39,.07); }
.icon { width: 48px; height: 48px; display: grid; place-items: center; background: var(--soft); color: var(--brand); border-radius: 16px; font-size: 24px; margin-bottom: 18px; }
.tag, .tags span { display: inline-flex; align-items: center; border-radius: 999px; background: #f1eadf; color: #7a5724; padding: 4px 10px; font-size: 13px; font-weight: 700; margin-right: 6px; }
.video-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.video-grid.compact { grid-template-columns: repeat(2, 1fr); }
.video-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: transform .2s ease, box-shadow .2s ease; }
.video-card:hover, .video-card:focus { transform: translateY(-6px); box-shadow: 0 28px 60px rgba(23,43,39,.16); outline: none; }
.video-media { position: relative; background: var(--brand-deep); aspect-ratio: 16 / 10; overflow: hidden; }
.video-media video { width: 100%; height: 100%; object-fit: cover; display: block; background-size: cover; }
.video-media .play { position: absolute; inset: 0; margin: auto; width: 58px; height: 58px; display: grid; place-items: center; border-radius: 50%; background: rgba(255,255,255,.92); color: var(--brand); font-weight: 900; opacity: 0; transform: scale(.86); transition: all .18s ease; }
.video-card:hover .play, .video-card:focus .play { opacity: 1; transform: scale(1); }
.video-body { padding: 18px; }
.video-body p { color: var(--muted); }
.stats { display: flex; gap: 10px; flex-wrap: wrap; color: var(--brand); font-size: 13px; font-weight: 700; margin: 14px 0; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.scenario-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.split { display: grid; grid-template-columns: .85fr 1.15fr; gap: 32px; align-items: start; }
.steps { margin: 0; padding: 0; list-style: none; display: grid; gap: 14px; }
.steps li { display: grid; grid-template-columns: 58px 1fr; gap: 14px; background: var(--surface); border: 1px solid var(--line); border-radius: 20px; padding: 18px; }
.steps li > span { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 14px; background: var(--brand); color: white; font-weight: 900; }
.steps h3, .steps p { margin: 0; }
.steps p { color: var(--muted); }
.timeline { display: grid; gap: 16px; }
.timeline article { position: relative; padding-left: 30px; }
.timeline article > span { display: inline-flex; color: var(--accent); font-weight: 900; margin-bottom: 6px; }
.timeline small { color: var(--muted); }
.faq-list { display: grid; gap: 12px; }
details { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 18px 20px; }
summary { cursor: pointer; color: var(--brand-deep); font-weight: 800; }
details p { color: var(--muted); margin-bottom: 0; }
.review-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.review-card p { color: var(--muted); }
.review-card span { color: var(--muted); font-size: 14px; display: block; }
.stars { color: var(--accent); letter-spacing: 2px; }
.contact-panel { display: flex; justify-content: space-between; align-items: center; gap: 24px; background: var(--brand-deep); color: white; padding: 34px; border-radius: 30px; margin-bottom: 72px; }
.contact-panel h2, .contact-panel .eyebrow { color: white; }
.contact-panel p { color: rgba(255,255,255,.78); }
.site-footer { background: #102622; color: rgba(255,255,255,.76); padding: 52px clamp(18px, 4vw, 56px) 24px; margin-top: 60px; }
.site-footer h2, .footer-logo { color: white; }
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr 1fr; gap: 32px; max-width: 1180px; margin: 0 auto; }
.footer-grid ul { list-style: none; padding: 0; display: grid; gap: 8px; }
.copyright { max-width: 1180px; margin: 30px auto 0; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.12); font-size: 14px; }
.breadcrumbs { display: flex; gap: 10px; flex-wrap: wrap; padding-top: 28px; color: var(--muted); font-size: 14px; }
.breadcrumbs a { color: var(--brand); font-weight: 700; }
.page-hero { padding: 58px 0 34px; max-width: 900px; }
.page-hero h1 { font-size: clamp(32px, 5vw, 54px); }
.inner-page .section:first-of-type { padding-top: 34px; }
.image-panel img { border-radius: 20px; aspect-ratio: 16 / 11; object-fit: cover; }
.image-panel figcaption { color: var(--muted); margin-top: 10px; font-size: 14px; }
.contact-layout { display: grid; grid-template-columns: 1.2fr .8fr; gap: 24px; }
.contact-form { display: grid; gap: 16px; }
.contact-form label { display: grid; gap: 8px; font-weight: 800; color: var(--brand-deep); }
.form-note { color: var(--muted); margin: 0; }
@media (max-width: 1024px) {
    .hero, .split, .contact-layout { grid-template-columns: 1fr; }
    .cards.four, .video-grid, .scenario-grid { grid-template-columns: repeat(2, 1fr); }
    .review-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
    .topbar { flex-direction: column; }
    .nav-toggle { display: inline-flex; }
    .nav-links { display: none; width: 100%; flex-direction: column; align-items: stretch; }
    .nav-links.is-open { display: flex; }
    .navbar { flex-wrap: wrap; }
    .search-form { grid-template-columns: 1fr; }
    .hero { min-height: auto; padding: 34px 0; }
    .cards.four, .cards.three, .video-grid, .video-grid.compact, .scenario-grid, .review-grid, .footer-grid { grid-template-columns: 1fr; }
    .section { padding: 46px 0; }
    .contact-panel { flex-direction: column; align-items: flex-start; }
}