/**
 * 全站高级质感主题层（万科式编辑留白 + 纬星青绿）
 *
 * @author jiangbin
 * @date 2026-08-12 12:05:00
 */

:root {
    --brand-primary: #0F766E;
    --brand-primary-dark: #0D5F59;
    --brand-accent: #14B8A6;
    --brand-text: #0B1220;
    --brand-muted: #5B6B7C;
    --brand-muted-soft: #8494A7;
    --brand-bg: #FFFFFF;
    --brand-bg-soft: #F7F9FB;
    --brand-border: #E6EBF0;
    --brand-ink: #0A1628;
    --brand-footer: #0B1220;
    --brand-shadow: 0 8px 32px rgba(11, 18, 32, 0.06);
    --brand-shadow-soft: 0 2px 12px rgba(11, 18, 32, 0.04);

    --font-display: "Plus Jakarta Sans", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    --font-body: "Noto Sans SC", "Plus Jakarta Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
    --font-family-sans-serif: var(--font-body);

    --fs-hero: clamp(2.45rem, 4.8vw, 3.9rem);
    --fs-h1: clamp(2rem, 3.3vw, 2.75rem);
    --fs-h2: clamp(1.5rem, 2.4vw, 2rem);
    --fs-h3: clamp(1.12rem, 1.5vw, 1.3rem);
    --fs-body: 1.02rem;
    --fs-lead: clamp(1.05rem, 1.45vw, 1.2rem);
    --fs-small: 0.875rem;
    --lh-tight: 1.16;
    --lh-body: 1.75;
    --lh-relaxed: 1.9;
    --tracking-display: -0.045em;
    --tracking-title: -0.035em;
    --tracking-body: 0.01em;
    --tracking-label: 0.18em;

    --space-section: clamp(5.75rem, 10vw, 8.5rem);
    --measure: 38rem;
    --radius-sm: 8px;
    --radius-md: 12px;
    --ease-premium: cubic-bezier(0.22, 1, 0.36, 1);

    --primary: #0F766E;
}

html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    scroll-behavior: smooth;
}

html,
body {
    font-family: var(--font-body) !important;
    color: var(--brand-text);
    background-color: var(--brand-bg);
    font-size: var(--fs-body);
    font-weight: 400;
    line-height: var(--lh-body);
    letter-spacing: var(--tracking-body);
}

p {
    color: var(--brand-muted);
    line-height: var(--lh-relaxed);
    letter-spacing: var(--tracking-body);
}

.lead {
    font-family: var(--font-body);
    font-size: var(--fs-lead) !important;
    font-weight: 400;
    line-height: var(--lh-relaxed);
    letter-spacing: 0.015em;
    color: var(--brand-muted);
}

a {
    color: var(--brand-primary);
}

a:hover {
    color: var(--brand-primary-dark);
}

/* ---------- 双语小标工具类 ---------- */
.brand-eyebrow {
    display: block;
    margin: 0 0 0.85rem;
    font-family: var(--font-display);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: var(--tracking-label);
    text-transform: uppercase;
    color: var(--brand-primary);
}

.brand-eyebrow span {
    display: inline-block;
    margin-left: 0.55rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: none;
    color: var(--brand-muted-soft);
}

.brand-measure {
    max-width: var(--measure);
}

.site-section {
    padding-top: var(--space-section);
    padding-bottom: var(--space-section);
}

/* ---------- 标题层级 ---------- */
h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
    font-family: var(--font-display) !important;
    color: var(--brand-text);
    font-weight: 700;
    line-height: var(--lh-tight);
    letter-spacing: var(--tracking-title);
    text-wrap: balance;
}

h1, .h1 {
    font-size: var(--fs-h1);
    font-weight: 800;
    letter-spacing: var(--tracking-display);
}

h2, .h2 {
    font-size: var(--fs-h2);
    font-weight: 800;
}

h3, .h3 {
    font-size: var(--fs-h3);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.text-black {
    color: var(--brand-text) !important;
}

/* ---------- 导航：细、透、可滚动压缩 ---------- */
.site-navbar.site-navbar--tech,
.site-navbar.bg-white.site-navbar--tech,
.site-navbar.site-navbar--premium {
    position: sticky !important;
    top: 0;
    z-index: 1999;
    background: rgba(255, 255, 255, 0.78) !important;
    backdrop-filter: blur(16px) saturate(1.2);
    -webkit-backdrop-filter: blur(16px) saturate(1.2);
    border-bottom: 1px solid rgba(230, 235, 240, 0.85);
    box-shadow: none;
    padding-top: 1.05rem !important;
    padding-bottom: 1.05rem !important;
    transition: padding 0.35s var(--ease-premium), background 0.35s ease, box-shadow 0.35s ease;
}

.site-navbar.site-navbar--tech.is-scrolled,
.site-navbar.site-navbar--premium.is-scrolled {
    padding-top: 0.65rem !important;
    padding-bottom: 0.65rem !important;
    background: rgba(255, 255, 255, 0.94) !important;
    box-shadow: var(--brand-shadow-soft);
}

.site-navbar--tech .site-logo img,
.site-navbar--premium .site-logo img {
    transition: height 0.35s var(--ease-premium);
}

.site-navbar--tech.is-scrolled .site-logo img,
.site-navbar--premium.is-scrolled .site-logo img {
    height: 42px !important;
}

.site-navbar--tech .site-menu > li > a,
.site-navbar--premium .site-menu > li > a {
    font-family: var(--font-display) !important;
    color: var(--brand-ink) !important;
    font-weight: 500;
    font-size: 0.92rem;
    letter-spacing: 0.04em;
    padding-left: 0.85rem !important;
    padding-right: 0.85rem !important;
    transition: color 0.25s ease;
}

.site-navbar--tech .site-menu > li > a:hover,
.site-navbar--tech .site-menu > li.active > a,
.site-navbar--tech .site-menu .active > a,
.site-navbar--premium .site-menu > li > a:hover,
.site-navbar--premium .site-menu > li.active > a {
    color: var(--brand-primary) !important;
}

.site-navbar--tech .site-menu .has-children > a:before,
.site-navbar--tech .site-menu .has-children > a:after {
    border-color: var(--brand-muted-soft);
}

.site-navbar--tech .site-menu .dropdown {
    border-radius: var(--radius-sm);
    border: 1px solid var(--brand-border);
    box-shadow: var(--brand-shadow);
    overflow: hidden;
    margin-top: 0.5rem;
}

.site-navbar--tech .site-menu .dropdown > li > a {
    font-family: var(--font-body) !important;
    color: var(--brand-text) !important;
    font-weight: 500;
    font-size: 0.88rem;
    letter-spacing: 0.01em;
    padding-top: 0.7rem;
    padding-bottom: 0.7rem;
}

.site-navbar--tech .site-menu .dropdown > li > a:hover {
    color: var(--brand-primary) !important;
    background: rgba(20, 184, 166, 0.07);
}

.site-navbar--tech .site-menu .dropdown::before,
.site-navbar .site-navigation .site-menu > .has-children > .dropdown {
    border-top-color: var(--brand-primary);
}

.site-mobile-menu {
    background: var(--brand-bg) !important;
}

.site-mobile-menu a {
    font-family: var(--font-display) !important;
    color: var(--brand-text) !important;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.site-mobile-menu a:hover {
    color: var(--brand-primary) !important;
}

/* ---------- 语言切换：编辑级分段控件 ---------- */
.site-navbar__tools {
    gap: 0.5rem;
}

.site-lang {
    --lang-pad: 3px;
    position: relative;
    display: inline-grid;
    grid-template-columns: 1fr 1fr;
    align-items: stretch;
    min-width: 6.4rem;
    padding: var(--lang-pad);
    border-radius: 999px;
    border: 1px solid rgba(15, 118, 110, 0.14);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(247, 249, 251, 0.88));
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.9),
        0 1px 2px rgba(11, 18, 32, 0.04);
    backdrop-filter: blur(14px) saturate(1.2);
    -webkit-backdrop-filter: blur(14px) saturate(1.2);
    overflow: hidden;
}

.site-lang__glow {
    position: absolute;
    top: var(--lang-pad);
    bottom: var(--lang-pad);
    left: var(--lang-pad);
    width: calc(50% - var(--lang-pad));
    border-radius: 999px;
    background: linear-gradient(135deg, #0F766E 0%, #14B8A6 100%);
    box-shadow: 0 4px 14px rgba(15, 118, 110, 0.28);
    transition: transform 0.4s var(--ease-premium);
    z-index: 0;
    pointer-events: none;
}

.site-lang[data-lang="en"] .site-lang__glow {
    transform: translateX(100%);
}

.site-lang__btn {
    position: relative;
    z-index: 1;
    border: 0;
    background: transparent;
    color: var(--brand-muted-soft);
    font-family: var(--font-display);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    line-height: 1;
    padding: 0.48rem 0.55rem;
    cursor: pointer;
    transition: color 0.3s var(--ease-premium);
}

.site-lang__code {
    display: block;
    text-align: center;
}

.site-lang__btn:hover {
    color: var(--brand-primary-dark);
}

.site-lang__btn.is-active {
    color: #fff;
}

.site-lang__btn:focus-visible {
    outline: 2px solid rgba(20, 184, 166, 0.45);
    outline-offset: 2px;
    border-radius: 999px;
}

.site-mobile-menu .site-lang {
    margin: 0.85rem 1.25rem 0.35rem;
}

@media (prefers-reduced-motion: reduce) {
    .site-lang__glow {
        transition: none;
    }
}

/* ---------- Hero / Cover：电影感（轻遮罩，保留植物/DNA 细节） ---------- */
.site-blocks-cover.overlay:before {
    background: linear-gradient(
        125deg,
        rgba(8, 18, 32, 0.58) 0%,
        rgba(8, 18, 32, 0.34) 42%,
        rgba(15, 118, 110, 0.28) 72%,
        rgba(8, 18, 32, 0.42) 100%
    ) !important;
}

.site-blocks-cover h1 {
    font-family: var(--font-display) !important;
    font-size: var(--fs-hero) !important;
    font-weight: 800 !important;
    letter-spacing: var(--tracking-display) !important;
    line-height: 1.15 !important;
    text-shadow: 0 4px 28px rgba(11, 18, 32, 0.35);
}

.site-blocks-cover p,
.site-blocks-cover .lead {
    font-family: var(--font-body) !important;
    color: rgba(248, 250, 252, 0.88) !important;
    font-weight: 400 !important;
    font-size: var(--fs-lead) !important;
    letter-spacing: 0.03em;
    line-height: 1.75 !important;
}

.site-blocks-cover.inner-page-cover {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 420px;
    height: 48vh;
}

.site-blocks-cover.inner-page-cover > .container {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.site-blocks-cover.inner-page-cover > .container > .row {
    width: 100%;
    min-height: 0;
    height: auto;
    margin-left: 0;
    margin-right: 0;
    align-items: center;
    justify-content: center;
}

.site-blocks-cover.inner-page-cover .row.mb-4,
.site-blocks-cover.inner-page-cover .mb-4,
.site-blocks-cover.inner-page-cover .mb-5,
.site-blocks-cover.inner-page-cover .lead.mb-5 {
    margin-bottom: 0 !important;
}

.site-blocks-cover .brand-eyebrow,
.site-blocks-cover .cover-eyebrow {
    color: var(--brand-accent);
    margin-bottom: 0.75rem;
}

.site-blocks-cover .brand-eyebrow span,
.site-blocks-cover .cover-eyebrow span {
    color: rgba(248, 250, 252, 0.72);
}

.site-blocks-cover.inner-page-cover h1 {
    font-size: clamp(2.15rem, 3.8vw, 3.05rem) !important;
    margin-bottom: 0.7rem;
}

.site-blocks-cover.inner-page-cover .lead {
    margin-bottom: 0 !important;
    max-width: 26rem;
    margin-left: auto;
    margin-right: auto;
    font-size: 1.05rem !important;
}

/* ---------- 区块标题 ---------- */
.site-section-heading,
.h1.site-section-heading {
    font-family: var(--font-display) !important;
    color: var(--brand-text);
    font-weight: 800;
    letter-spacing: var(--tracking-display);
    line-height: 1.15;
}

.site-section-heading:after,
.site-section-heading.text-center:after {
    width: 40px;
    height: 2px;
    background: var(--brand-primary);
}

/* ---------- 按钮 ---------- */
.btn {
    font-family: var(--font-display) !important;
    font-weight: 600;
    letter-spacing: 0.04em;
    border-radius: var(--radius-sm) !important;
    transition: transform 0.35s var(--ease-premium), box-shadow 0.35s var(--ease-premium), background 0.25s ease !important;
}

.btn-primary,
.bg-primary {
    background-color: var(--brand-primary) !important;
    border-color: var(--brand-primary) !important;
}

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
    background-color: var(--brand-primary-dark) !important;
    border-color: var(--brand-primary-dark) !important;
    transform: translateY(-1px);
}

.text-primary {
    color: var(--brand-primary) !important;
}

.bg-light {
    background-color: var(--brand-bg-soft) !important;
}

a.bg-primary:hover {
    background-color: var(--brand-primary-dark) !important;
}

/* ---------- 深色编辑式页脚 ---------- */
.site-footer.site-footer--premium,
.site-footer {
    background: var(--brand-footer) !important;
    color: rgba(248, 250, 252, 0.72);
    padding: 4.5rem 0 2.5rem;
    border: none;
}

.site-footer h2,
.site-footer h3,
.site-footer h4,
.site-footer h5,
.site-footer .footer-heading {
    font-family: var(--font-display) !important;
    color: #fff !important;
    font-size: 0.95rem !important;
    font-weight: 700 !important;
    letter-spacing: 0.08em !important;
    text-transform: uppercase;
    margin-bottom: 1.25rem !important;
}

.site-footer p,
.site-footer a {
    font-family: var(--font-body);
    color: rgba(248, 250, 252, 0.65) !important;
    letter-spacing: 0.015em;
    font-size: 0.92rem;
    line-height: 1.8;
}

.site-footer a:hover {
    color: var(--brand-accent) !important;
}

.site-footer ul li {
    margin-bottom: 0.55rem;
}

.site-footer .border-top {
    border-top: 1px solid rgba(255, 255, 255, 0.1) !important;
}

.site-footer .footer-copy {
    color: rgba(248, 250, 252, 0.45) !important;
    font-size: 0.85rem !important;
}

.site-footer .footer-copy a {
    color: rgba(248, 250, 252, 0.55) !important;
}

.site-footer .footer-brand-line {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: #fff !important;
    margin-bottom: 0.85rem;
}

/* 媒体卡片标签 */
.media-1 .media-1-content h2 {
    font-family: var(--font-display) !important;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.media-1 .media-1-content .category {
    font-family: var(--font-display) !important;
    font-weight: 600;
    letter-spacing: var(--tracking-label) !important;
    font-size: 0.72rem !important;
    color: rgba(255, 255, 255, 0.78) !important;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .site-navbar.site-navbar--tech,
    .btn {
        transition: none !important;
    }
}