/* ============================================================
   武韵凯眼整形外科 oculoplasticny.com
   高端中文医疗网站 — 设计系统
   ============================================================ */

:root {
    --ink: #14181f;
    --navy: #112a44;
    --navy-deep: #0b1d30;
    --gold: #b08d57;
    --gold-light: #c9a96a;
    --gold-soft: #e7d9c2;
    --cream: #faf7f2;
    --cream-2: #f3ede4;
    --paper: #ffffff;
    --text: #2d3340;
    --muted: #6b7180;
    --line: #e6e0d6;
    --shadow-sm: 0 4px 20px rgba(17, 42, 68, 0.06);
    --shadow-md: 0 16px 50px rgba(17, 42, 68, 0.10);
    --shadow-lg: 0 30px 80px rgba(11, 29, 48, 0.16);
    --serif: "Noto Serif SC", "Songti SC", "STSong", "SimSun", Georgia, serif;
    --sans: "Noto Sans SC", -apple-system, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
    --display: "Cormorant Garamond", var(--serif);
    --container: 1200px;
    --radius: 4px;
    --transition: 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--sans);
    color: var(--text);
    background: var(--paper);
    line-height: 1.85;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }

.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 28px;
}

h1, h2, h3, h4 {
    font-family: var(--serif);
    font-weight: 600;
    color: var(--navy);
    line-height: 1.35;
    letter-spacing: 0.5px;
}

/* ---------- Section helpers ---------- */
.section { padding: 110px 0; }
.section--cream { background: var(--cream); }
.section--navy { background: var(--navy-deep); color: rgba(255,255,255,0.85); }
.section--navy h2, .section--navy h3 { color: #fff; }

.section-head { text-align: center; max-width: 760px; margin: 0 auto 64px; }
.eyebrow {
    display: inline-block;
    font-family: var(--sans);
    font-size: 0.78rem;
    letter-spacing: 0.32em;
    text-transform: uppercase;
    color: var(--gold);
    font-weight: 600;
    margin-bottom: 18px;
    position: relative;
    padding-bottom: 14px;
}
.eyebrow::after {
    content: "";
    position: absolute;
    bottom: 0; left: 50%;
    transform: translateX(-50%);
    width: 44px; height: 1px;
    background: var(--gold);
}
.section-head.left { text-align: left; margin-left: 0; }
.section-head.left .eyebrow::after { left: 0; transform: none; }

h2.section-title {
    font-size: clamp(1.8rem, 3.6vw, 2.75rem);
    margin-bottom: 20px;
}
.section-sub { color: var(--muted); font-size: 1.05rem; }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--sans);
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    padding: 15px 36px;
    border-radius: var(--radius);
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition);
}
.btn-gold { background: var(--gold); color: #fff; }
.btn-gold:hover { background: var(--navy); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-outline { border-color: var(--gold); color: var(--navy); background: transparent; }
.btn-outline:hover { background: var(--gold); color: #fff; }
.btn-ghost-light { border-color: rgba(255,255,255,0.5); color: #fff; }
.btn-ghost-light:hover { background: #fff; color: var(--navy); }

/* ---------- Top bar ---------- */
.topbar {
    background: var(--navy-deep);
    color: rgba(255,255,255,0.75);
    font-size: 0.85rem;
    letter-spacing: 0.02em;
}
.topbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 42px;
}
.topbar a { color: rgba(255,255,255,0.8); }
.topbar a:hover { color: var(--gold-light); }
.topbar-info span { margin-right: 22px; }
.topbar-info i { color: var(--gold); margin-right: 6px; }

/* ---------- Header / Nav ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.96);
    backdrop-filter: saturate(160%) blur(10px);
    border-bottom: 1px solid var(--line);
    transition: var(--transition);
}
.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 84px;
}
.logo { display: flex; flex-direction: column; line-height: 1.1; }
.logo .logo-zh {
    font-family: var(--serif);
    font-size: 1.45rem;
    font-weight: 600;
    color: var(--navy);
    letter-spacing: 1px;
}
.logo .logo-en {
    font-family: var(--display);
    font-size: 0.72rem;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--gold);
    margin-top: 2px;
}
.nav-menu { display: flex; align-items: center; gap: 6px; list-style: none; }
.nav-menu > li > a {
    display: block;
    padding: 10px 16px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text);
    position: relative;
}
.nav-menu > li > a::after {
    content: "";
    position: absolute;
    left: 16px; right: 16px; bottom: 4px;
    height: 1.5px;
    background: var(--gold);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}
.nav-menu > li > a:hover, .nav-menu > li > a.active { color: var(--navy); }
.nav-menu > li > a:hover::after, .nav-menu > li > a.active::after { transform: scaleX(1); }
.nav-cta { margin-left: 14px; padding: 11px 24px !important; }
.nav-cta::after { display: none; }

/* 下拉子菜单 */
.nav-menu li.has-dropdown { position: relative; }
.has-dropdown > a .caret { font-size: 0.6rem; margin-left: 4px; transition: var(--transition); display: inline-block; }
.nav-menu li.has-dropdown:hover > a .caret { transform: rotate(180deg); }
.nav-menu .dropdown {
    position: absolute;
    top: 100%; left: 0;
    min-width: 180px;
    list-style: none;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 4px;
    box-shadow: var(--shadow-md);
    padding: 8px 0;
    margin: 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    z-index: 1100;
}
.nav-menu li.has-dropdown:hover .dropdown,
.nav-menu li.has-dropdown:focus-within .dropdown {
    opacity: 1;
    visibility: visible;
    transform: none;
}
.nav-menu .dropdown li a {
    display: block;
    padding: 10px 22px;
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--text);
    white-space: nowrap;
}
.nav-menu .dropdown li a:hover,
.nav-menu .dropdown li a.active { color: var(--navy); background: var(--cream); }

/* 语言切换 */
.lang-switch {
    border: 1px solid var(--gold);
    border-radius: 40px;
    padding: 6px 16px !important;
    font-size: 0.85rem !important;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--gold) !important;
    margin-left: 6px;
}
.lang-switch::after { display: none !important; }
.lang-switch:hover { background: var(--gold); color: #fff !important; }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span {
    display: block; width: 26px; height: 2px; background: var(--navy);
    margin: 5px 0; transition: var(--transition);
}

/* ---------- Hero ---------- */
.hero {
    position: relative;
    background:
        radial-gradient(ellipse at 75% 20%, rgba(176,141,87,0.10), transparent 55%),
        linear-gradient(135deg, var(--navy-deep) 0%, var(--navy) 60%, #163655 100%);
    color: #fff;
    overflow: hidden;
}
.hero::before {
    content: "";
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: 0.4;
}
.hero .container {
    position: relative;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
    min-height: 640px;
    padding-top: 70px;
    padding-bottom: 70px;
}
.hero-text .hero-eyebrow {
    display: inline-block;
    font-size: 0.78rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--gold-light);
    margin-bottom: 24px;
    padding-bottom: 14px;
    border-bottom: 1px solid rgba(201,169,106,0.4);
}
.hero h1 {
    color: #fff;
    font-size: clamp(1.9rem, 3.8vw, 2.9rem);
    line-height: 1.3;
    margin-bottom: 14px;
}
.hero h1 .accent { color: var(--gold-light); }
.hero-name {
    font-family: var(--display);
    font-size: 1.15rem;
    letter-spacing: 0.22em;
    color: rgba(255,255,255,0.7);
    text-transform: uppercase;
    margin-bottom: 26px;
}
.hero-desc {
    font-size: 1.08rem;
    color: rgba(255,255,255,0.82);
    max-width: 540px;
    margin-bottom: 22px;
}
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 36px; }
.hero-tags span {
    font-size: 0.85rem;
    padding: 7px 16px;
    border: 1px solid rgba(255,255,255,0.22);
    border-radius: 40px;
    color: rgba(255,255,255,0.88);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }

.hero-portrait { position: relative; }
.hero-portrait .frame {
    position: relative;
    border-radius: 6px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255,255,255,0.12);
}
.hero-portrait img { width: 100%; height: 560px; object-fit: cover; object-position: center top; }
.hero-portrait .badge {
    position: absolute;
    left: -26px; bottom: 40px;
    background: var(--gold);
    color: #fff;
    padding: 18px 24px;
    border-radius: 4px;
    box-shadow: var(--shadow-md);
    max-width: 230px;
}
.hero-portrait .badge strong { display: block; font-family: var(--serif); font-size: 1.05rem; }
.hero-portrait .badge span { font-size: 0.82rem; opacity: 0.9; }

/* ---------- Stat strip ---------- */
.stats {
    background: var(--cream);
    border-bottom: 1px solid var(--line);
}
.stats .container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    padding-top: 56px;
    padding-bottom: 56px;
}
.stat { text-align: center; position: relative; }
.stat:not(:last-child)::after {
    content: ""; position: absolute; right: -12px; top: 12%; height: 76%; width: 1px; background: var(--line);
}
.stat .num {
    font-family: var(--display);
    font-size: 2.8rem;
    font-weight: 600;
    color: var(--gold);
    line-height: 1;
}
.stat .label { color: var(--muted); font-size: 0.95rem; margin-top: 10px; }

/* ---------- Intro / about preview ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; }
.split--reverse .split-media { order: 2; }
.split-media { position: relative; }
.split-media img { border-radius: 6px; box-shadow: var(--shadow-md); width: 100%; height: 100%; object-fit: cover; }
.split-media .deco {
    position: absolute; inset: 18px -18px -18px 18px;
    border: 1px solid var(--gold); border-radius: 6px; z-index: -1;
}
.lead { font-size: 1.12rem; color: var(--text); margin-bottom: 22px; }
.split-body p { margin-bottom: 18px; color: var(--muted); }
.checklist { list-style: none; margin: 24px 0 30px; }
.checklist li {
    position: relative; padding-left: 32px; margin-bottom: 14px; color: var(--text);
}
.checklist li::before {
    content: "✦"; position: absolute; left: 0; top: 0; color: var(--gold); font-size: 0.95rem;
}

/* ---------- Video section ---------- */
.video-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.video-card {
    background: var(--paper);
    border-radius: 6px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}
.video-frame {
    position: relative;
    padding-top: 56.25%;
    background: #000;
}
.video-frame iframe {
    position: absolute; inset: 0; width: 100%; height: 100%; border: 0;
}
.video-card .caption { padding: 22px 26px; }
.video-card .caption h3 { font-size: 1.2rem; margin-bottom: 6px; }
.video-card .caption p { color: var(--muted); font-size: 0.95rem; margin: 0; }

/* ---------- Service cards ---------- */
.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.cards-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.service-card {
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 42px 34px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.service-card::before {
    content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 3px;
    background: var(--gold); transform: scaleX(0); transform-origin: left; transition: var(--transition);
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: transparent; }
.service-card:hover::before { transform: scaleX(1); }
.service-card .icon {
    width: 58px; height: 58px; border-radius: 50%;
    background: var(--cream); color: var(--gold);
    display: grid; place-items: center; font-size: 1.5rem; margin-bottom: 22px;
    border: 1px solid var(--gold-soft);
}
.service-card h3 { font-size: 1.3rem; margin-bottom: 14px; }
.service-card p { color: var(--muted); font-size: 0.97rem; margin-bottom: 18px; }
.service-card .more { color: var(--gold); font-weight: 600; font-size: 0.92rem; letter-spacing: 0.04em; }
.service-card .more:hover { color: var(--navy); }

/* ---------- Procedure list (detail pages) ---------- */
.proc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.proc-item {
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 30px 30px;
    transition: var(--transition);
}
.proc-item:hover { box-shadow: var(--shadow-sm); border-color: var(--gold-soft); }
.proc-item h3 { font-size: 1.18rem; margin-bottom: 10px; display: flex; align-items: center; gap: 10px; }
.proc-item h3 .dot { color: var(--gold); }
.proc-item p { color: var(--muted); font-size: 0.96rem; margin: 0; }

/* 图文服务卡片（带插画） */
.proc-card {
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 10px;
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
}
.proc-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}
.proc-card-media {
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--line);
}
.proc-card-media img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.6s cubic-bezier(0.22,1,0.36,1);
}
.proc-card:hover .proc-card-media img { transform: scale(1.06); }
.proc-card-body { padding: 26px 28px 30px; flex: 1; }
.proc-card-body h3 {
    font-size: 1.22rem;
    margin-bottom: 12px;
    padding-left: 16px;
    position: relative;
}
.proc-card-body h3::before {
    content: "";
    position: absolute;
    left: 0; top: 7px;
    width: 4px; height: calc(100% - 8px);
    background: var(--gold);
    border-radius: 2px;
}
.proc-card-body p { color: var(--muted); font-size: 0.96rem; margin: 0; line-height: 1.8; }

/* ---------- Tag pill list ---------- */
.pill-list { display: flex; flex-wrap: wrap; gap: 12px; }
.pill-list span {
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 40px;
    padding: 10px 22px;
    font-size: 0.95rem;
    color: var(--text);
    transition: var(--transition);
}
.pill-list span:hover { border-color: var(--gold); color: var(--navy); }

/* ---------- Page hero (interior) ---------- */
.page-hero {
    background:
        linear-gradient(rgba(11,29,48,0.82), rgba(11,29,48,0.86)),
        linear-gradient(135deg, var(--navy-deep), var(--navy));
    color: #fff;
    text-align: center;
    padding: 100px 0 90px;
    position: relative;
}
.page-hero h1 { color: #fff; font-size: clamp(2rem, 4.5vw, 3.1rem); margin-bottom: 16px; }
.page-hero p { color: rgba(255,255,255,0.82); max-width: 640px; margin: 0 auto; font-size: 1.08rem; }
.breadcrumb { margin-top: 26px; font-size: 0.88rem; color: rgba(255,255,255,0.6); }
.breadcrumb a { color: var(--gold-light); }
.breadcrumb a:hover { color: #fff; }

/* ---------- CTA band ---------- */
.cta-band {
    background:
        radial-gradient(ellipse at 80% 50%, rgba(176,141,87,0.18), transparent 60%),
        linear-gradient(135deg, var(--navy-deep), var(--navy));
    color: #fff;
    text-align: center;
    padding: 90px 0;
}
.cta-band h2 { color: #fff; font-size: clamp(1.8rem, 3.5vw, 2.6rem); margin-bottom: 16px; }
.cta-band p { color: rgba(255,255,255,0.82); max-width: 560px; margin: 0 auto 34px; font-size: 1.08rem; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ---------- Bio / credentials ---------- */
.bio-block { margin-bottom: 30px; }
.bio-block p { color: var(--muted); margin-bottom: 16px; }
.cred-list { list-style: none; }
.cred-list li {
    padding: 18px 0; border-bottom: 1px solid var(--line);
    display: flex; gap: 16px; align-items: flex-start;
}
.cred-list li:last-child { border-bottom: none; }
.cred-list .yr {
    font-family: var(--display); color: var(--gold); font-weight: 600;
    min-width: 56px; font-size: 1.05rem;
}
.cred-list .desc strong { display: block; color: var(--navy); font-family: var(--serif); }
.cred-list .desc span { color: var(--muted); font-size: 0.95rem; }

/* ---------- FAQ ---------- */
.faq-item {
    border: 1px solid var(--line);
    border-radius: 6px;
    margin-bottom: 16px;
    background: var(--paper);
    overflow: hidden;
}
.faq-q {
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    cursor: pointer;
    padding: 24px 28px;
    font-family: var(--serif);
    font-size: 1.12rem;
    font-weight: 600;
    color: var(--navy);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}
.faq-q .ic { color: var(--gold); font-size: 1.4rem; transition: var(--transition); flex-shrink: 0; }
.faq-item.open .faq-q .ic { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.5s ease; }
.faq-a-inner { padding: 0 28px 26px; color: var(--muted); }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: start; }
.info-card { margin-bottom: 26px; display: flex; gap: 18px; align-items: flex-start; }
.info-card .ic {
    width: 50px; height: 50px; flex-shrink: 0; border-radius: 50%;
    background: var(--cream); color: var(--gold); display: grid; place-items: center;
    border: 1px solid var(--gold-soft); font-size: 1.2rem;
}
.info-card h4 { font-size: 1.05rem; margin-bottom: 4px; }
.info-card p, .info-card a { color: var(--muted); margin: 0; }
.info-card a:hover { color: var(--gold); }

.contact-form {
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 40px;
    box-shadow: var(--shadow-sm);
}
.contact-form .field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    font-family: var(--sans);
    font-size: 0.98rem;
    padding: 14px 16px;
    margin-bottom: 18px;
    border: 1px solid var(--line);
    border-radius: 4px;
    background: var(--cream);
    color: var(--text);
    transition: var(--transition);
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none; border-color: var(--gold); background: #fff;
    box-shadow: 0 0 0 3px rgba(176,141,87,0.12);
}
.contact-form textarea { min-height: 130px; resize: vertical; }
.contact-form button { width: 100%; justify-content: center; }

.map-wrap { margin-top: 0; border-radius: 8px; overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--line); }
.map-wrap iframe { width: 100%; height: 340px; border: 0; display: block; }

/* ---------- Footer ---------- */
footer {
    background: var(--navy-deep);
    color: rgba(255,255,255,0.72);
    padding: 80px 0 30px;
}
.footer-content {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 50px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-section h3 { color: #fff; font-size: 1.15rem; margin-bottom: 20px; }
.footer-brand .logo-zh { font-family: var(--serif); font-size: 1.4rem; color: #fff; display: block; }
.footer-brand .logo-en {
    font-family: var(--display); font-size: 0.72rem; letter-spacing: 0.26em;
    text-transform: uppercase; color: var(--gold-light); margin: 4px 0 18px; display: block;
}
.footer-section p, .footer-section a { color: rgba(255,255,255,0.7); line-height: 1.9; font-size: 0.95rem; }
.footer-section a:hover { color: var(--gold-light); }
.footer-section ul { list-style: none; }
.footer-section ul li { margin-bottom: 8px; }
.footer-contact-line { display: flex; gap: 10px; margin-bottom: 12px; }
.footer-contact-line i { color: var(--gold); margin-top: 4px; }

.footer-bottom { text-align: center; padding-top: 28px; color: rgba(255,255,255,0.55); font-size: 0.9rem; }
.footer-bottom p { margin-bottom: 8px; }
.footer-partner { margin-top: 14px; font-size: 0.88rem; color: rgba(255,255,255,0.6); }
.footer-partner a { color: var(--gold-light); }
.footer-partner a:hover { color: #fff; }
.lang-en { display: none; }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.22,1,0.36,1); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
    .hero .container { grid-template-columns: 1fr; gap: 44px; min-height: auto; }
    .hero-portrait { max-width: 440px; margin: 0 auto; }
    .hero-portrait img { height: 460px; }
    .split { grid-template-columns: 1fr; gap: 40px; }
    .split--reverse .split-media { order: 0; }
    .contact-grid { grid-template-columns: 1fr; gap: 40px; }
    .footer-content { grid-template-columns: 1fr 1fr; gap: 32px; }
    .cards-3 { grid-template-columns: repeat(2, 1fr); }
    .proc-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
    .topbar { display: none; }
    .nav-toggle { display: block; }
    .nav-menu {
        position: fixed; top: 84px; left: 0; right: 0;
        background: #fff; flex-direction: column; align-items: stretch;
        gap: 0; padding: 14px 24px 28px; border-bottom: 1px solid var(--line);
        box-shadow: var(--shadow-md);
        transform: translateY(-150%); transition: var(--transition); max-height: calc(100vh - 84px); overflow-y: auto;
    }
    .nav-menu.open { transform: none; }
    .nav-menu > li > a { padding: 14px 4px; border-bottom: 1px solid var(--line); }
    .nav-menu > li > a::after { display: none; }
    /* 移动端：下拉子菜单改为内嵌缩进显示 */
    .nav-menu .dropdown {
        position: static; opacity: 1; visibility: visible; transform: none;
        box-shadow: none; border: none; border-radius: 0;
        padding: 0; background: transparent;
    }
    .nav-menu .dropdown li a {
        padding: 12px 4px 12px 22px;
        border-bottom: 1px solid var(--line);
        color: var(--muted);
    }
    .has-dropdown > a .caret { display: none; }
    .nav-cta { margin: 14px 0 0 !important; text-align: center; }
    .nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .nav-toggle.active span:nth-child(2) { opacity: 0; }
    .nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}
@media (max-width: 760px) {
    .section { padding: 72px 0; }
    .stats .container { grid-template-columns: repeat(2, 1fr); gap: 36px 16px; }
    .stat:nth-child(2)::after { display: none; }
    .video-grid, .cards-3, .cards-2, .proc-grid { grid-template-columns: 1fr; }
    .contact-form { padding: 28px 22px; }
    .contact-form .field-row { grid-template-columns: 1fr; }
    .footer-content { grid-template-columns: 1fr; }
    .hero-portrait .badge { left: 0; }
}

/* ============================================================
   Blog — 资讯文章列表与文章页
   ============================================================ */
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.blog-card {
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 6px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}
.blog-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: transparent; }
.blog-card .blog-card-media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: var(--cream-2); }
.blog-card .blog-card-media img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.blog-card:hover .blog-card-media img { transform: scale(1.05); }
.blog-card .blog-card-cat {
    position: absolute; top: 14px; left: 14px;
    background: rgba(11,29,48,0.86); color: var(--gold-light);
    font-size: 0.78rem; letter-spacing: 0.05em; padding: 6px 14px; border-radius: 40px;
}
.blog-card .blog-card-body { padding: 26px 26px 30px; display: flex; flex-direction: column; flex: 1; }
.blog-card .blog-card-meta { font-size: 0.82rem; color: var(--muted); margin-bottom: 12px; letter-spacing: 0.02em; }
.blog-card h3 { font-size: 1.2rem; line-height: 1.5; margin-bottom: 12px; }
.blog-card h3 a { color: var(--navy); }
.blog-card h3 a:hover { color: var(--gold); }
.blog-card p { color: var(--muted); font-size: 0.95rem; margin-bottom: 18px; flex: 1; }
.blog-card .more { color: var(--gold); font-weight: 600; font-size: 0.9rem; letter-spacing: 0.04em; }
.blog-card .more:hover { color: var(--navy); }

/* 文章正文 */
.article-wrap { max-width: 820px; margin: 0 auto; }
.article-meta { font-size: 0.88rem; color: var(--muted); margin-bottom: 30px; letter-spacing: 0.02em; }
.article-meta span + span { margin-left: 14px; padding-left: 14px; border-left: 1px solid var(--line); }
.article-body { color: var(--text); font-size: 1.04rem; line-height: 1.95; }
.article-body h2 {
    font-size: 1.55rem; color: var(--navy); margin: 48px 0 18px;
    padding-bottom: 12px; border-bottom: 2px solid var(--gold-soft);
}
.article-body h3 { font-size: 1.22rem; color: var(--navy); margin: 32px 0 14px; }
.article-body p { margin-bottom: 18px; }
.article-body ul, .article-body ol { margin: 0 0 22px; padding-left: 4px; list-style: none; }
.article-body ul li { position: relative; padding-left: 30px; margin-bottom: 12px; }
.article-body ul li::before { content: "✦"; position: absolute; left: 0; top: 0; color: var(--gold); }
.article-body ol { counter-reset: li; }
.article-body ol li { position: relative; padding-left: 38px; margin-bottom: 12px; counter-increment: li; }
.article-body ol li::before {
    content: counter(li); position: absolute; left: 0; top: 1px;
    width: 26px; height: 26px; border-radius: 50%; background: var(--cream-2); color: var(--gold);
    display: grid; place-items: center; font-size: 0.85rem; font-weight: 700;
}
.article-body strong { color: var(--navy); }
.article-body a { color: var(--gold); font-weight: 600; }
.article-body a:hover { color: var(--navy); text-decoration: underline; }
.article-lead { font-size: 1.15rem; color: var(--navy); line-height: 1.85; margin-bottom: 30px; font-family: var(--serif); }

/* 价格 / 对比表 */
.price-table { width: 100%; border-collapse: collapse; margin: 8px 0 26px; font-size: 0.97rem; }
.price-table th, .price-table td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--line); }
.price-table thead th { background: var(--navy); color: #fff; font-weight: 600; }
.price-table tbody tr:nth-child(even) { background: var(--cream); }
.price-table td:last-child { color: var(--gold); font-weight: 600; }

/* 要点框 / 提示框 */
.key-box {
    background: var(--cream); border: 1px solid var(--gold-soft); border-left: 4px solid var(--gold);
    border-radius: 6px; padding: 24px 28px; margin: 28px 0;
}
.key-box h4 { color: var(--navy); margin-bottom: 12px; font-size: 1.05rem; }
.key-box ul { margin: 0 !important; }
.note-box {
    background: #fbf6ee; border: 1px dashed var(--gold-soft); border-radius: 6px;
    padding: 18px 22px; margin: 26px 0; font-size: 0.92rem; color: var(--muted);
}

/* 目录 */
.toc { background: var(--paper); border: 1px solid var(--line); border-radius: 6px; padding: 24px 28px; margin-bottom: 36px; }
.toc h4 { color: var(--navy); font-size: 1rem; margin-bottom: 14px; letter-spacing: 0.03em; }
.toc ol { margin: 0; padding-left: 0; list-style: none; counter-reset: toc; }
.toc li { position: relative; padding-left: 28px; margin-bottom: 9px; counter-increment: toc; }
.toc li::before { content: counter(toc) "."; position: absolute; left: 0; color: var(--gold); font-weight: 700; }
.toc a { color: var(--text); }
.toc a:hover { color: var(--gold); }

/* 相关文章 / 作者卡 */
.author-card {
    display: flex; gap: 22px; align-items: center; background: var(--cream);
    border: 1px solid var(--line); border-radius: 8px; padding: 26px 30px; margin: 44px 0 10px;
}
.author-card img { width: 84px; height: 84px; border-radius: 50%; object-fit: cover; flex-shrink: 0; border: 2px solid var(--gold-soft); }
.author-card h4 { color: var(--navy); margin-bottom: 6px; }
.author-card p { color: var(--muted); font-size: 0.92rem; margin: 0; }

@media (max-width: 960px) {
    .blog-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
    .blog-grid { grid-template-columns: 1fr; }
    .author-card { flex-direction: column; text-align: center; }
    .price-table { font-size: 0.88rem; }
    .price-table th, .price-table td { padding: 10px 10px; }
}