:root {
    --primary: #1d6fb8;
    --primary-dark: #155a96;
    --primary-light: #e8f3fb;
    --accent: #2bb6a3;
    --ink: #1f2d3d;
    --ink-soft: #5a6b7b;
    --line: #e6edf3;
    --bg-soft: #f5f9fc;
    --white: #ffffff;
    --shadow: 0 8px 24px rgba(29, 111, 184, 0.10);
    --radius: 16px;
    --maxw: 1180px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
    font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, sans-serif;
    color: var(--ink); background: var(--white); line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ===== 顶部条 ===== */
.topbar { background: var(--primary-dark); color: #dceefb; font-size: 13px; }
.topbar-inner { display: flex; justify-content: space-between; align-items: center; height: 38px; flex-wrap: wrap; gap: 6px; }
.topbar a { color: #fff; font-weight: 600; }

/* ===== 导航 ===== */
.header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.94); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.logo-mark { width: 42px; height: 42px; border-radius: 12px; background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff; display: grid; place-items: center; font-size: 22px; font-weight: 700; box-shadow: var(--shadow); }
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-text strong { font-size: 18px; color: var(--ink); }
.logo-text em { font-size: 10px; color: var(--ink-soft); letter-spacing: .7px; font-style: normal; }
.nav { display: flex; align-items: center; gap: 20px; }
.nav a { font-size: 14.5px; color: var(--ink-soft); font-weight: 500; transition: color .2s; position: relative; white-space: nowrap; }
.nav a:hover { color: var(--primary); }
.nav a::after { content: ""; position: absolute; left: 0; bottom: -6px; width: 0; height: 2px; background: var(--primary); transition: width .25s; }
.nav a:hover::after { width: 100%; }
.nav-cta { background: var(--primary); color: #fff !important; padding: 8px 16px; border-radius: 999px; box-shadow: var(--shadow); }
.nav-cta::after { display: none; }
.nav-cta:hover { background: var(--primary-dark); }
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 6px; }
.hamburger span { width: 24px; height: 3px; background: var(--ink); border-radius: 3px; transition: .3s; }

/* ===== Hero（真实院景） ===== */
.hero { position: relative; color: #fff; padding: 130px 0 155px; overflow: hidden; }
.hero-photo {
    background: linear-gradient(90deg, rgba(9,52,90,.94) 0%, rgba(12,68,112,.82) 42%, rgba(12,68,112,.35) 100%),
                url('../images/hospital.jpg') center 42% / cover no-repeat;
}
.hero-content { position: relative; z-index: 2; max-width: 720px; }
.container > .hero-content, .hero > .container { position: relative; z-index: 2; }
.hero-badge { display: inline-block; background: rgba(255,255,255,.16); border: 1px solid rgba(255,255,255,.32); padding: 6px 16px; border-radius: 999px; font-size: 14px; margin-bottom: 22px; }
.hero h1 { font-size: 52px; line-height: 1.2; font-weight: 800; letter-spacing: 3px; }
.hero-slogan { font-size: 22px; margin-top: 10px; color: #b8ecdf; font-weight: 600; letter-spacing: 1px; }
.hero-sub { font-size: 16.5px; margin: 20px 0 32px; color: #eaf6ff; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn { display: inline-block; padding: 13px 30px; border-radius: 999px; font-size: 15px; font-weight: 600; transition: .25s; }
.btn-primary { background: #fff; color: var(--primary-dark); box-shadow: 0 10px 24px rgba(0,0,0,.18); }
.btn-primary:hover { transform: translateY(-2px); }
.btn-ghost { background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,.6); }
.btn-ghost:hover { background: rgba(255,255,255,.12); }
.hero-wave { position: absolute; bottom: -1px; left: 0; width: 100%; height: 60px; background: var(--white); clip-path: polygon(0 100%, 100% 100%, 100% 0, 50% 55%, 0 0); }

/* ===== 通用区块 ===== */
.section { padding: 84px 0; }
.section-alt { background: var(--bg-soft); }
.section-head { text-align: center; max-width: 760px; margin: 0 auto 50px; }
.section-kicker { display: inline-block; font-size: 13px; letter-spacing: 3px; color: var(--accent); font-weight: 700; }
.section-head h2 { font-size: 32px; margin: 8px 0 10px; color: var(--ink); }
.section-head p { color: var(--ink-soft); font-size: 16px; }

/* ===== 医院概况 ===== */
.about-grid { display: grid; grid-template-columns: 1.25fr 1fr; gap: 44px; align-items: start; }
.about-text p { margin-bottom: 16px; color: var(--ink-soft); font-size: 15.5px; }
.about-text strong { color: var(--primary-dark); }
.about-list { list-style: none; margin-top: 22px; }
.about-list li { margin-bottom: 10px; color: var(--ink); font-weight: 500; font-size: 15px; }
.about-photo { position: relative; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.about-photo img { width: 100%; height: 340px; object-fit: cover; }
.photo-cap { position: absolute; left: 0; bottom: 0; right: 0; background: linear-gradient(transparent, rgba(0,0,0,.6)); color: #fff; font-size: 13px; padding: 26px 16px 12px; }
.zoomable { cursor: zoom-in; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 40px; }
.stat-card { background: linear-gradient(135deg, var(--primary-light), #fff); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; text-align: center; box-shadow: var(--shadow); }
.stat-num { display: block; font-size: 32px; font-weight: 800; color: var(--primary); line-height: 1.1; }
.stat-num .unit { font-size: 18px; }
.stat-label { font-size: 14px; color: var(--ink-soft); margin-top: 6px; display: block; }

/* ===== 影像中心 ===== */
.video-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; max-width: 900px; margin: 0 auto; }
.video-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.video-frame { position: relative; background: #0d2a44; aspect-ratio: 16/10; display: grid; place-items: center; }
.video-frame img { width: 100%; height: 100%; object-fit: cover; opacity: .85; }
.video-frame.playing { aspect-ratio: 1/1; }
.video-frame video { width: 100%; height: 100%; object-fit: contain; background: #0d2a44; }
.play-btn { position: absolute; width: 64px; height: 64px; border: none; border-radius: 50%; background: rgba(255,255,255,.94); color: var(--primary); font-size: 24px; padding-left: 5px; cursor: pointer; box-shadow: 0 8px 24px rgba(0,0,0,.3); transition: .25s; }
.play-btn:hover { transform: scale(1.1); background: #fff; }
.video-info { padding: 18px 22px 20px; }
.video-info h4 { font-size: 17px; margin-bottom: 6px; }
.video-info p { color: var(--ink-soft); font-size: 14px; }
.video-meta { display: inline-block; margin-top: 10px; font-size: 12px; color: var(--primary); background: var(--primary-light); padding: 3px 10px; border-radius: 999px; }

/* ===== 特色诊疗 Tabs ===== */
.tabs { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-bottom: 36px; }
.tab { border: 1px solid var(--line); background: #fff; color: var(--ink-soft); padding: 11px 24px; border-radius: 999px; font-size: 15px; font-weight: 600; cursor: pointer; transition: .25s; font-family: inherit; }
.tab:hover { border-color: var(--primary); color: var(--primary); }
.tab.active { background: var(--primary); color: #fff; border-color: var(--primary); box-shadow: var(--shadow); }
.tab-panel { display: none; animation: fadeIn .35s ease; }
.tab-panel.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.therapy-layout { display: grid; grid-template-columns: 1.2fr .8fr; gap: 40px; align-items: start; }
.therapy-text h3 { font-size: 24px; color: var(--primary-dark); margin-bottom: 14px; }
.therapy-text .lead { color: var(--ink-soft); font-size: 15.5px; margin-bottom: 26px; }
.therapy-text .lead strong { color: var(--primary-dark); }
.sub-title { font-size: 17px; color: var(--ink); margin: 26px 0 14px; padding-left: 12px; border-left: 4px solid var(--accent); }
.inline-link { display: inline-block; color: var(--primary); font-weight: 600; font-size: 15px; margin-top: 20px; border-bottom: 1px dashed var(--primary); padding-bottom: 2px; }
.inline-link:hover { color: var(--accent); border-color: var(--accent); }
.therapy-note { font-size: 13px; color: var(--ink-soft); margin-top: 14px; }

.flow-list { list-style: none; display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; counter-reset: flow; }
.flow-list li { background: var(--primary-light); border: 1px solid var(--line); border-radius: 12px; padding: 14px 10px; text-align: center; position: relative; }
.flow-list li::before { counter-increment: flow; content: counter(flow); display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; background: var(--primary); color: #fff; font-size: 12px; font-weight: 700; margin: 0 auto 8px; }
.flow-list b { display: block; font-size: 14px; color: var(--ink); }
.flow-list span { display: block; font-size: 12px; color: var(--ink-soft); margin-top: 4px; }
.flow-list.compact { grid-template-columns: repeat(5, 1fr); }
.flow-list.compact li { background: #fff; }

.effect-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.effect-grid > div { background: linear-gradient(135deg, #e9f8f5, #fff); border: 1px solid var(--line); border-radius: 12px; padding: 16px; }
.effect-grid b { display: block; font-size: 15px; color: var(--primary-dark); }
.effect-grid span { font-size: 13px; color: var(--ink-soft); }

.stage-list { display: flex; flex-direction: column; gap: 18px; }
.stage { display: flex; gap: 16px; background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 18px 20px; }
.stage-no { flex-shrink: 0; width: 34px; height: 34px; border-radius: 50%; background: var(--primary); color: #fff; display: grid; place-items: center; font-weight: 700; }
.stage h4 { font-size: 16px; color: var(--primary-dark); margin-bottom: 8px; }
.stage p { color: var(--ink-soft); font-size: 14px; }
.sub-grid { display: grid; gap: 10px; margin-top: 12px; }
.sub-grid > div { border-left: 3px solid var(--accent); background: var(--bg-soft); padding: 10px 14px; border-radius: 0 8px 8px 0; }
.sub-grid b { color: var(--ink); font-size: 14.5px; }
.sub-grid p { font-size: 13.5px; margin-top: 2px; }

.therapy-figure img { width: 100%; border-radius: var(--radius); border: 1px solid var(--line); box-shadow: var(--shadow); }
.therapy-figure figcaption, .insurance-figure figcaption { text-align: center; font-size: 13px; color: var(--ink-soft); margin-top: 10px; }

.table-scroll { overflow-x: auto; border-radius: 12px; border: 1px solid var(--line); }
.tcm-table { width: 100%; min-width: 700px; border-collapse: collapse; background: #fff; font-size: 14px; }
.tcm-table th { background: var(--primary); color: #fff; padding: 12px 14px; text-align: left; white-space: nowrap; }
.tcm-table td { padding: 14px; border-top: 1px solid var(--line); color: var(--ink-soft); vertical-align: top; }
.tcm-table td b { color: var(--primary-dark); }
.tcm-table tr:nth-child(even) td { background: #fafcfe; }

/* ===== 肾病专科 ===== */
.nephro-intro { display: flex; align-items: center; justify-content: space-between; gap: 30px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 34px; margin-bottom: 36px; box-shadow: var(--shadow); }
.nephro-intro-text h3 { font-size: 22px; color: var(--ink); margin-bottom: 8px; }
.nephro-intro-text p { color: var(--ink-soft); }
.nephro-intro-text strong { color: var(--primary-dark); }
.nephro-badge { text-align: center; flex-shrink: 0; background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff; border-radius: var(--radius); padding: 18px 26px; }
.nephro-badge .big { display: block; font-size: 30px; font-weight: 800; }
.nephro-badge .small { font-size: 13px; letter-spacing: 2px; }
.disease-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.disease-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 14px; text-align: center; transition: .25s; }
.disease-card:hover { transform: translateY(-5px); border-color: var(--primary); box-shadow: var(--shadow); }
.d-icon { font-size: 30px; display: block; margin-bottom: 8px; }
.disease-card h4 { font-size: 15px; color: var(--ink); font-weight: 600; }

/* ===== 设备 ===== */
.equip-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.equip-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; transition: .25s; }
.equip-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: var(--accent); }
.equip-icon { width: 56px; height: 56px; border-radius: 14px; background: var(--primary-light); display: grid; place-items: center; font-size: 28px; margin-bottom: 16px; }
.equip-card h4 { font-size: 18px; color: var(--ink); margin-bottom: 8px; }
.equip-card p { color: var(--ink-soft); font-size: 14.5px; }

/* ===== 健康饮食指南 ===== */
.diet-book { display: grid; grid-template-columns: 280px 1fr; gap: 0; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); margin-bottom: 32px; }
.diet-book-cover { background: linear-gradient(150deg, #155a96, #1d6fb8 55%, #2bb6a3); color: #fff; padding: 34px 28px; display: flex; flex-direction: column; justify-content: center; }
.book-tag { display: inline-block; align-self: flex-start; font-size: 12px; border: 1px solid rgba(255,255,255,.5); padding: 3px 10px; border-radius: 999px; margin-bottom: 22px; }
.diet-book-cover h3 { font-size: 26px; line-height: 1.4; letter-spacing: 1px; }
.diet-book-cover p { font-size: 12.5px; opacity: .85; margin-top: 18px; }
.diet-book-info { padding: 30px 34px; }
.diet-book-info > p { color: var(--ink-soft); font-size: 15px; }
.diet-book-info strong { color: var(--primary-dark); }
.book-stats { display: flex; gap: 38px; margin: 22px 0 16px; }
.book-stats div { display: flex; flex-direction: column; }
.book-stats b { font-size: 30px; color: var(--primary); line-height: 1.1; }
.book-stats span { font-size: 13px; color: var(--ink-soft); }
.book-tip { font-size: 14px !important; color: var(--primary) !important; font-weight: 600; }

.diet-tools { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; }
.search-box { display: flex; align-items: center; gap: 10px; border: 1px solid var(--line); border-radius: 999px; padding: 10px 18px; background: var(--bg-soft); }
.search-box input { flex: 1; border: 0; outline: 0; background: transparent; font-size: 15px; font-family: inherit; color: var(--ink); }
.search-box span { font-size: 16px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.chip { border: 1px solid var(--line); background: #fff; color: var(--ink-soft); padding: 7px 14px; border-radius: 999px; font-size: 13.5px; cursor: pointer; font-family: inherit; transition: .2s; }
.chip:hover { border-color: var(--primary); color: var(--primary); }
.chip.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.diet-count { font-size: 14px; color: var(--ink-soft); margin: 18px 0 14px; }
.diet-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 12px; }
.diet-item { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; text-align: left; cursor: pointer; font-family: inherit; transition: .2s; display: flex; align-items: flex-start; gap: 10px; }
.diet-item:hover { border-color: var(--primary); box-shadow: var(--shadow); transform: translateY(-2px); }
.diet-item .no { flex-shrink: 0; width: 26px; height: 26px; border-radius: 8px; background: var(--primary-light); color: var(--primary); font-size: 12px; font-weight: 700; display: grid; place-items: center; }
.diet-item .nm { font-size: 14.5px; font-weight: 600; color: var(--ink); line-height: 1.4; }
.diet-item .pg { display: block; font-size: 12px; color: var(--ink-soft); font-weight: 400; margin-top: 2px; }
.diet-empty { grid-column: 1 / -1; text-align: center; color: var(--ink-soft); padding: 40px; }

/* ===== 医保资质 ===== */
.insurance-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; margin-bottom: 36px; }
.insurance-figure { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); }
.insurance-figure img { width: 100%; max-width: 420px; margin: 0 auto; border-radius: 10px; border: 1px solid var(--line); }
.insurance-info h3 { font-size: 22px; color: var(--primary-dark); margin-bottom: 18px; }
.info-table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.info-table th, .info-table td { border-bottom: 1px solid var(--line); padding: 11px 8px; text-align: left; }
.info-table th { color: var(--ink-soft); font-weight: 500; width: 42%; }
.info-table td { color: var(--ink); font-weight: 600; }
.yes { display: inline-block; background: #e6f7f1; color: #16876f; padding: 1px 10px; border-radius: 999px; font-size: 13px; }
.plaque-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.plaque-list span { font-size: 13px; background: var(--primary-light); color: var(--primary-dark); padding: 6px 12px; border-radius: 8px; }
.honor-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.honor-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 18px; text-align: center; transition: .25s; }
.honor-card:hover { background: var(--primary); }
.honor-card:hover h4, .honor-card:hover .h-icon { color: #fff; }
.h-icon { font-size: 34px; display: block; margin-bottom: 10px; }
.honor-card h4 { font-size: 15px; color: var(--ink); line-height: 1.5; }

/* ===== 就医指南 ===== */
.guide-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.guide-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 22px; transition: .25s; }
.guide-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.guide-icon { font-size: 32px; margin-bottom: 12px; }
.guide-card h4 { font-size: 17px; margin-bottom: 8px; color: var(--ink); }
.guide-card p { color: var(--ink-soft); font-size: 14.5px; }
.guide-strong { font-size: 19px !important; font-weight: 700; color: var(--primary) !important; }
.guide-extra { margin-top: 30px; background: #fff; border: 1px dashed var(--primary); border-radius: 12px; padding: 20px 24px; }
.guide-extra p { color: var(--ink-soft); font-size: 14.5px; }
.notice-box { margin-top: 36px; background: linear-gradient(135deg, var(--primary-light), #fff); border: 1px solid var(--line); border-left: 4px solid var(--accent); border-radius: 12px; padding: 24px 28px; }
.notice-box h4 { color: var(--primary-dark); margin-bottom: 8px; font-size: 17px; }
.notice-box p { color: var(--ink-soft); font-size: 15px; }

/* ===== 页脚 ===== */
.footer { background: #11263a; color: #b9c8d6; padding: 56px 0 0; }
.footer-inner { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; padding-bottom: 40px; }
.logo-footer .logo-text strong { color: #fff; }
.logo-footer .logo-text em { color: #7d93a8; }
.footer-desc { margin-top: 16px; font-size: 14px; line-height: 1.8; max-width: 360px; }
.footer-col h4 { color: #fff; font-size: 16px; margin-bottom: 16px; position: relative; padding-left: 12px; }
.footer-col h4::before { content: ""; position: absolute; left: 0; top: 4px; width: 4px; height: 16px; background: var(--accent); border-radius: 2px; }
.footer-col p { font-size: 14px; margin-bottom: 10px; }
.footer-col a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 20px 0; font-size: 13px; text-align: center; color: #7d93a8; }
.footer-note { margin-top: 6px; font-size: 12px; }

/* ===== 返回顶部 ===== */
.back-top { position: fixed; right: 24px; bottom: 28px; width: 46px; height: 46px; border-radius: 50%; background: var(--primary); color: #fff; display: grid; place-items: center; font-size: 22px; box-shadow: var(--shadow); opacity: 0; pointer-events: none; transition: .3s; z-index: 90; }
.back-top.show { opacity: 1; pointer-events: auto; }
.back-top:hover { background: var(--primary-dark); transform: translateY(-3px); }

/* ===== 弹窗 / 详情 ===== */
.modal { position: fixed; inset: 0; z-index: 200; display: none; align-items: center; justify-content: center; padding: 20px; }
.modal.open { display: flex; }
.modal-mask { position: absolute; inset: 0; background: rgba(10,28,44,.72); backdrop-filter: blur(3px); }
.modal-box { position: relative; z-index: 2; width: 100%; max-width: 860px; max-height: 88vh; overflow-y: auto; background: #fff; border-radius: 18px; box-shadow: 0 24px 60px rgba(0,0,0,.3); }
.modal-close { position: absolute; right: 14px; top: 12px; z-index: 5; width: 36px; height: 36px; border: 0; border-radius: 50%; background: rgba(240,246,250,.95); color: var(--ink); font-size: 26px; line-height: 1; cursor: pointer; }
.modal-close:hover { background: var(--primary); color: #fff; }
.modal-body { padding: 32px 34px 36px; }
.d-head { border-bottom: 2px solid var(--primary-light); padding-bottom: 16px; margin-bottom: 22px; padding-right: 40px; }
.d-head h3 { font-size: 25px; color: var(--primary-dark); }
.d-head .d-en { font-size: 13px; color: var(--ink-soft); margin-top: 4px; }
.d-meta { margin-top: 10px; display: flex; gap: 10px; flex-wrap: wrap; }
.d-meta span { font-size: 12.5px; background: var(--primary-light); color: var(--primary-dark); padding: 3px 12px; border-radius: 999px; }
.d-intro { color: var(--ink-soft); font-size: 15px; background: var(--bg-soft); border-radius: 10px; padding: 14px 18px; margin-bottom: 24px; }
.d-section { margin-bottom: 24px; }
.d-section > h4 { font-size: 17px; color: var(--ink); padding-left: 12px; border-left: 4px solid var(--accent); margin-bottom: 14px; }
.d-list { list-style: none; counter-reset: dl; }
.d-list li { counter-increment: dl; position: relative; padding-left: 32px; margin-bottom: 10px; color: var(--ink-soft); font-size: 14.5px; }
.d-list li::before { content: counter(dl); position: absolute; left: 0; top: 2px; width: 22px; height: 22px; border-radius: 50%; background: var(--primary); color: #fff; font-size: 12px; display: grid; place-items: center; }
.d-food { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.d-food > div { border-radius: 12px; padding: 16px 18px; }
.d-food .good { background: #eef9f4; border: 1px solid #cdeede; }
.d-food .bad { background: #fff2f1; border: 1px solid #f7d7d3; }
.d-food h5 { font-size: 15px; margin-bottom: 10px; }
.d-food .good h5 { color: #16876f; }
.d-food .bad h5 { color: #c0483c; }
.d-food ul { list-style: none; }
.d-food li { font-size: 14px; color: var(--ink-soft); margin-bottom: 7px; padding-left: 16px; position: relative; }
.d-food li::before { content: "•"; position: absolute; left: 0; color: inherit; }
.d-meals { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.d-meals > div { background: var(--bg-soft); border: 1px solid var(--line); border-radius: 10px; padding: 12px 16px; }
.d-meals b { color: var(--primary); font-size: 14px; }
.d-meals p { font-size: 14px; color: var(--ink-soft); margin-top: 4px; }
.d-nutrients { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
.d-nutrients > div { background: linear-gradient(135deg, var(--primary-light), #fff); border: 1px solid var(--line); border-radius: 10px; padding: 14px 8px; text-align: center; }
.d-nutrients b { display: block; font-size: 13px; color: var(--ink-soft); font-weight: 500; }
.d-nutrients span { display: block; font-size: 14px; color: var(--primary-dark); font-weight: 700; margin-top: 6px; }
.d-disclaimer { font-size: 13px; color: var(--ink-soft); background: #fff8e8; border: 1px solid #f2e2bb; border-radius: 10px; padding: 12px 16px; }
.lightbox .modal-close { right: 24px; top: 20px; }
.lightbox img { position: relative; z-index: 2; max-width: 92vw; max-height: 88vh; object-fit: contain; border-radius: 8px; box-shadow: 0 20px 60px rgba(0,0,0,.4); }
body.modal-open { overflow: hidden; }

/* ===== 响应式 ===== */
@media (max-width: 1100px) {
    .nav { gap: 13px; }
    .nav a { font-size: 13.5px; }
    .logo-text em { display: none; }
}
@media (max-width: 980px) {
    .about-grid, .therapy-layout, .insurance-grid { grid-template-columns: 1fr; gap: 30px; }
    .about-photo img { height: 300px; }
    .stats { grid-template-columns: repeat(3, 1fr); }
    .disease-grid { grid-template-columns: repeat(3, 1fr); }
    .equip-grid { grid-template-columns: repeat(2, 1fr); }
    .honor-grid { grid-template-columns: repeat(3, 1fr); }
    .guide-grid { grid-template-columns: repeat(2, 1fr); }
    .video-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-inner { grid-template-columns: 1fr 1fr; }
    .flow-list, .flow-list.compact { grid-template-columns: repeat(3, 1fr); }
    .effect-grid { grid-template-columns: 1fr; }
    .diet-book { grid-template-columns: 220px 1fr; }
    .d-nutrients { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 720px) {
    .topbar-right { display: none; }
    .nav { position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; gap: 0; background: #fff; border-bottom: 1px solid var(--line); max-height: 0; overflow: hidden; transition: max-height .3s; box-shadow: var(--shadow); }
    .nav.open { max-height: 560px; }
    .nav a { padding: 14px 20px; width: 100%; border-bottom: 1px solid var(--line); font-size: 15px; }
    .nav-cta { margin: 10px 20px; text-align: center; width: auto; }
    .hamburger { display: flex; }
    .hero { padding: 90px 0 120px; }
    .hero h1 { font-size: 36px; }
    .hero-slogan { font-size: 17px; }
    .hero-sub { font-size: 14.5px; }
    .section { padding: 58px 0; }
    .section-head h2 { font-size: 25px; }
    .stats { grid-template-columns: repeat(2, 1fr); }
    .disease-grid { grid-template-columns: repeat(2, 1fr); }
    .equip-grid, .honor-grid, .guide-grid, .video-grid, .footer-inner, .d-meals, .d-food { grid-template-columns: 1fr; }
    .flow-list, .flow-list.compact { grid-template-columns: repeat(2, 1fr); }
    .nephro-intro { flex-direction: column; text-align: center; }
    .diet-book { grid-template-columns: 1fr; }
    .diet-book-cover { padding: 26px; }
    .diet-book-info { padding: 24px; }
    .d-nutrients { grid-template-columns: repeat(2, 1fr); }
    .tab { padding: 9px 15px; font-size: 13.5px; }
    .modal-body { padding: 26px 20px 30px; }
}