/* ===== IRECN Shared Stylesheet (Refined) =====
Design: Clean, professional, scientific. Less is more.
Typography: Inter (body) + DM Serif Display (hero headlines only)
Color: Ocean palette preserved (#0066a0 / #00a0c8 / #2e8b57)
No gradients on cards. No emoji icons. No left color bars.
*/
* { margin: 0; padding: 0; box-sizing: border-box; }
@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=Inter:wght@300;400;500;600;700;800&display=swap');
:root {
--primary: #0066a0; --primary-dark: #004a73; --primary-light: #e8f4fa;
--accent: #00a0c8; --accent-light: #d4f0f7; --accent2: #2e8b57;
--text: #2c3e50; --text-light: #6c7a89; --text-muted: #94a3b8;
--bg: #fff; --bg-alt: #f7f9fb; --border: #e2e8ed; --border-soft: #eef2f6;
--shadow-xs: 0 1px 2px rgba(15, 40, 60, 0.04);
--shadow-sm: 0 1px 3px rgba(15, 40, 60, 0.06);
--shadow-md: 0 4px 12px rgba(15, 40, 60, 0.08);
--shadow-lg: 0 12px 32px rgba(15, 40, 60, 0.10);
--radius-sm: 4px; --radius: 6px; --radius-lg: 10px;
--radius-full: 999px;
--space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem; --space-4: 1rem;
--space-6: 1.5rem; --space-8: 2rem; --space-12: 3rem; --space-16: 4rem; --space-20: 5rem;
--font-display: 'DM Serif Display', Georgia, serif;
--font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
--transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
--maxw: 1400px;
}
/* Scroll reveal */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-stagger > * { opacity: 0; transform: translateY(16px); transition: opacity 0.5s ease, transform 0.5s ease; }
.reveal-stagger.visible > * { opacity: 1; transform: translateY(0); }
.reveal-stagger.visible > *:nth-child(1) { transition-delay: 0ms; }
.reveal-stagger.visible > *:nth-child(2) { transition-delay: 60ms; }
.reveal-stagger.visible > *:nth-child(3) { transition-delay: 120ms; }
.reveal-stagger.visible > *:nth-child(4) { transition-delay: 180ms; }
.reveal-stagger.visible > *:nth-child(5) { transition-delay: 240ms; }
.reveal-stagger.visible > *:nth-child(6) { transition-delay: 300ms; }
.reveal-stagger.visible > *:nth-child(7) { transition-delay: 360ms; }
.reveal-stagger.visible > *:nth-child(8) { transition-delay: 420ms; }
@media (prefers-reduced-motion: reduce) {
*, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
.reveal, .reveal-stagger > * { opacity: 1; transform: none; }
}
html { scroll-behavior: smooth; }
body { font-family: var(--font-body); color: var(--text); line-height: 1.7; background: var(--bg); -webkit-font-smoothing: antialiased; }
a { color: var(--primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--accent); }
img { max-width: 100%; display: block; }
::selection { background: var(--accent); color: #fff; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-alt); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }
/* Scroll reveal animation (enhanced with stagger) */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-stagger > * { opacity: 0; transform: translateY(16px); transition: opacity 0.5s ease, transform 0.5s ease; }
.reveal-stagger.visible > * { opacity: 1; transform: translateY(0); }
.reveal-stagger.visible > *:nth-child(1) { transition-delay: 0ms; }
.reveal-stagger.visible > *:nth-child(2) { transition-delay: 60ms; }
.reveal-stagger.visible > *:nth-child(3) { transition-delay: 120ms; }
.reveal-stagger.visible > *:nth-child(4) { transition-delay: 180ms; }
.reveal-stagger.visible > *:nth-child(5) { transition-delay: 240ms; }
.reveal-stagger.visible > *:nth-child(6) { transition-delay: 300ms; }
.reveal-stagger.visible > *:nth-child(7) { transition-delay: 360ms; }
.reveal-stagger.visible > *:nth-child(8) { transition-delay: 420ms; }
@media (prefers-reduced-motion: reduce) {
*, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
.reveal, .reveal-stagger > * { opacity: 1; transform: none; }
}
html { scroll-behavior: smooth; }
body { font-family: var(--font-body); color: var(--text); line-height: 1.7; background: var(--bg); -webkit-font-smoothing: antialiased; }
a { color: var(--primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--accent); }
img { max-width: 100%; display: block; }
::selection { background: var(--accent); color: #fff; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-alt); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }
header { background: var(--primary-dark); color: #fff; padding: 6px 0; font-size: 13px; position: relative; z-index: 200; }
.header-inner { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; display: flex; justify-content: space-between; align-items: center; }
.header-inner .left { display: flex; gap: 20px; align-items: center; }
.header-inner .left a { color: #a8d4e8; display: flex; align-items: center; gap: 4px; transition: color .2s; }
.header-inner .left a:hover { color: #fff; }
.header-inner .right { display: flex; align-items: center; gap: 8px; }
.header-inner .right a { color: #fff; border: 1px solid rgba(255,255,255,0.35); padding: 4px 18px; border-radius: 20px; font-size: 12px; font-weight: 500; transition: var(--transition); }
.header-inner .right a:hover { background: rgba(255,255,255,0.15); border-color: rgba(255,255,255,0.6); }
#langToggle {
background: rgba(255,255,255,0.15); border: 1px solid rgba(255,255,255,0.5);
color: #fff; padding: 5px 18px; border-radius: 20px; font-size: 13px;
cursor: pointer; font-weight: 600; transition: all .2s;
}
#langToggle:hover { background: rgba(255,255,255,0.3); }
/* 占位容器不生成盒子: 让注入的 header/nav 直接以 body 为包含块,
否则 nav 的 sticky 会被限制在占位 div 的高度内, 一滚动就跟着走 */
#nav-placeholder { display: contents; }
nav { background: #fff; box-shadow: 0 1px 12px rgba(0,60,100,0.06); position: sticky; top: 0; z-index: 100; transition: box-shadow .3s; }
nav.scrolled { box-shadow: 0 2px 20px rgba(0,60,100,0.12); }
.nav-inner { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.logo-icon { flex-shrink: 0; height: 56px; width: auto; }
.logo-text { font-size: 1rem; font-weight: 700; color: var(--primary-dark); line-height: 1.2; }
.logo-text small { display: block; font-size: 0.625rem; color: var(--text-light); font-weight: 400; letter-spacing: 0.2px; }
.nav-menu { display: flex; list-style: none; gap: 2px; }
.nav-menu > li > a { display: block; padding: 8px 14px; font-size: 14px; color: var(--text); border-radius: 6px; transition: var(--transition); position: relative; }
.nav-menu > li > a:hover, .nav-menu > li > a.active { background: var(--primary-light); color: var(--primary); }
.nav-menu > li > a.active::after { content: ''; position: absolute; bottom: -2px; left: 50%; transform: translateX(-50%); width: 20px; height: 2px; background: var(--accent); border-radius: 2px; }
/* ===== Hero (Refined: water wave animation, left-aligned content) ===== */
.hero { background: linear-gradient(160deg, #002d4a 0%, #0066a0 45%, #0088b3 100%); color: #fff; padding: 96px 24px 128px; text-align: center; position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: url('data:image/svg+xml,'); opacity: 0.6; }
.hero::after { content: ''; position: absolute; bottom: -1px; left: 0; right: 0; height: 80px; background: var(--bg); clip-path: polygon(0 100%, 0 60%, 15% 70%, 30% 50%, 45% 65%, 60% 45%, 75% 60%, 90% 50%, 100% 65%, 100% 100%); }
.hero-content { position: relative; max-width: 920px; margin: 0 auto; z-index: 2; }
.hero h1 { font-family: var(--font-display); font-size: clamp(2.5rem, 1.5rem + 3vw, 3.5rem); font-weight: 400; margin-bottom: 20px; letter-spacing: -0.5px; line-height: 1.15; text-shadow: 0 2px 24px rgba(0,0,0,0.18); }
.hero .subtitle { font-size: 1.125rem; opacity: 0.95; margin-bottom: 12px; font-weight: 500; letter-spacing: 0.2px; }
.hero .tagline { font-size: 0.875rem; opacity: 0.75; margin-bottom: 36px; line-height: 1.9; }
.hero-stats { display: flex; justify-content: center; gap: 56px; flex-wrap: wrap; margin-top: 44px; }
.hero-stat { text-align: center; }
.hero-stat .num { font-family: var(--font-display); font-size: 2.5rem; font-weight: 400; background: linear-gradient(180deg, #fff, #a8d4e8); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; line-height: 1; }
.hero-stat .label { font-size: 0.6875rem; opacity: 0.8; text-transform: uppercase; letter-spacing: 1.5px; margin-top: 8px; }
.hero-cta { display: inline-block; background: #fff; color: var(--primary-dark); padding: 14px 40px; border-radius: var(--radius-full); font-size: 1rem; font-weight: 600; box-shadow: 0 8px 32px rgba(0,0,0,0.2); transition: var(--transition-bounce); letter-spacing: 0.3px; }
.hero-cta:hover { transform: translateY(-3px) scale(1.02); box-shadow: 0 12px 40px rgba(0,0,0,0.3); color: var(--primary-dark); background: #fff; }
.hero-cta:active { transform: translateY(-1px) scale(0.99); }
.hero-scroll { position: absolute; bottom: 90px; left: 50%; transform: translateX(-50%); color: rgba(255,255,255,0.5); font-size: 24px; animation: bounce 2s infinite; z-index: 2; }
@keyframes bounce { 0%, 100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(8px); } }
/* Hero with reservoir background image (IWRA-inspired)
背景图可替换: 只需替换 hero-reservoir.jpg 文件, 或修改下方 background-image 的 url
建议图片: 宽幅水库/大坝实景图, 宽度 >=1920px
*/
.hero-bg {
min-height: 560px;
display: flex;
align-items: center;
justify-content: center;
color: #fff;
position: relative;
overflow: hidden;
padding: 96px 24px;
/* 深色渐变遮罩 + 水库实景背景图 (遮罩保证白色文字可读) */
background-image:
linear-gradient(135deg, rgba(3, 24, 40, 0.74) 0%, rgba(6, 52, 82, 0.5) 50%, rgba(9, 84, 124, 0.34) 100%),
url('hero-reservoir.jpg');
background-size: cover;
background-position: center;
background-repeat: no-repeat;
}
.hero-content { position: relative; z-index: 2; text-align: center; max-width: 920px; }
.hero-badge {
display: inline-block;
padding: 7px 18px;
background: rgba(255, 255, 255, 0.1);
border: 1px solid rgba(255, 255, 255, 0.22);
border-radius: var(--radius-full);
font-size: 0.8125rem;
font-weight: 500;
letter-spacing: 0.5px;
margin-bottom: 24px;
backdrop-filter: blur(10px) saturate(140%);
-webkit-backdrop-filter: blur(10px) saturate(140%);
box-shadow: 0 1px 8px rgba(0, 0, 0, 0.08);
}
.hero-bg h1 {
font-family: var(--font-display);
font-size: clamp(2.25rem, 1.5rem + 2.5vw, 3.25rem);
font-weight: 400;
margin-bottom: 16px;
letter-spacing: -0.4px;
line-height: 1.18;
text-shadow: 0 2px 28px rgba(0, 0, 0, 0.22), 0 1px 2px rgba(0, 0, 0, 0.15);
}
.hero-bg .subtitle {
font-size: 1.0625rem;
opacity: 0.92;
margin-bottom: 32px;
font-weight: 400;
letter-spacing: 0.2px;
text-shadow: 0 1px 12px rgba(0, 0, 0, 0.2);
}
.hero-cta {
display: inline-block;
background: #fff;
color: var(--primary-dark);
padding: 13px 36px;
border-radius: var(--radius-full);
font-size: 0.9375rem;
font-weight: 600;
letter-spacing: 0.3px;
box-shadow:
0 4px 24px rgba(0, 0, 0, 0.2),
0 1px 3px rgba(0, 0, 0, 0.1);
transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.25s ease, background-color 0.2s ease;
}
.hero-cta:hover {
transform: translateY(-2px);
box-shadow:
0 8px 36px rgba(0, 0, 0, 0.28),
0 2px 6px rgba(0, 0, 0, 0.12);
color: var(--primary-dark);
background: #fff;
}
.hero-cta:active {
transform: translateY(0);
box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
}
/* Subpage hero (enhanced) */
.sub-hero { background: linear-gradient(135deg, #003d5c 0%, #0066a0 100%); color: #fff; padding: 64px 20px 56px; text-align: center; position: relative; overflow: hidden; }
.sub-hero::before { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: radial-gradient(circle at 30% 20%, rgba(255,255,255,0.06), transparent 40%); }
.sub-hero::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, transparent, var(--accent) 20%, var(--primary) 50%, var(--accent) 80%, transparent); }
.sub-hero h1 { font-family: var(--font-display); font-size: clamp(1.875rem, 1.2rem + 2vw, 2.25rem); font-weight: 400; margin-bottom: 10px; letter-spacing: -0.3px; }
.sub-hero p { font-size: 1rem; opacity: 0.9; font-weight: 400; }
section { padding: 80px 24px; }
.bg-alt { background: var(--bg-alt); }
.section-inner { max-width: var(--maxw); margin: 0 auto; }
.section-title { text-align: center; margin-bottom: 56px; }
.section-title h2 { font-family: var(--font-display); font-size: clamp(1.75rem, 1.2rem + 1.5vw, 2.25rem); font-weight: 400; color: var(--primary-dark); display: inline-block; padding-bottom: 12px; position: relative; letter-spacing: -0.3px; }
.section-title h2::after { content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 40px; height: 3px; background: linear-gradient(90deg, var(--accent), var(--accent2)); border-radius: 2px; }
.section-title p { color: var(--text-light); margin-top: 14px; font-size: 1rem; max-width: 700px; margin-left: auto; margin-right: auto; }
.read-more { display: inline-block; color: var(--primary); font-size: 0.875rem; font-weight: 600; padding: 8px 24px; border: 1px solid var(--primary); border-radius: var(--radius-full); transition: var(--transition); }
.read-more:hover { background: var(--primary); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-primary); }
/* About IRECN - 背景与问题引文 (PPT第8页参考)
设计: pull quote引文 + 叙事段落, 左侧装饰线
*/
.about-context { max-width: 820px; margin: 0 auto; }
.about-quote {
margin: 0 0 40px;
padding: 28px 32px;
background: linear-gradient(135deg, var(--primary-light), rgba(212, 240, 247, 0.3));
border-left: 3px solid var(--accent);
border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}
.about-quote p {
font-family: var(--font-display);
font-size: clamp(1.25rem, 1rem + 0.8vw, 1.625rem);
font-style: italic;
color: var(--primary-dark);
line-height: 1.5;
letter-spacing: -0.2px;
}
.about-narrative p {
font-size: 1rem;
color: var(--text);
line-height: 1.85;
margin-bottom: 18px;
}
.about-narrative p:last-child { margin-bottom: 0; }
/* Mission/Vision/Commitment cards (Lucide-style SVG icons) */
.mvc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; max-width: 1080px; margin: 0 auto; }
.mvc-card {
background: #fff;
border: 1px solid var(--border);
border-radius: var(--radius-lg);
padding: 36px 28px;
text-align: center;
transition: box-shadow 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
}
.mvc-card:hover {
box-shadow: 0 12px 40px rgba(15, 40, 60, 0.08), 0 4px 12px rgba(15, 40, 60, 0.04);
border-color: #cbd5e0;
transform: translateY(-3px);
}
.mvc-icon {
width: 44px;
height: 44px;
margin: 0 auto 20px;
color: var(--primary);
display: flex;
align-items: center;
justify-content: center;
background: var(--primary-light);
border-radius: 50%;
padding: 10px;
}
.mvc-icon svg { width: 100%; height: 100%; }
.mvc-label {
font-size: 0.75rem;
font-weight: 600;
color: var(--accent);
text-transform: uppercase;
letter-spacing: 1.5px;
margin-bottom: 14px;
display: block;
}
.mvc-card p {
font-size: 0.9375rem;
color: var(--text);
line-height: 1.75;
}
@media (max-width: 768px) { .mvc-grid { grid-template-columns: 1fr; } }
/* From...To... cards (Lucide-style SVG icons) */
.from-to-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; max-width: 960px; margin: 0 auto; }
.from-to-card {
background: #fff;
border: 1px solid var(--border);
border-radius: var(--radius-lg);
padding: 36px 28px;
text-align: center;
transition: box-shadow 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
}
.from-to-card:hover {
box-shadow: 0 12px 40px rgba(15, 40, 60, 0.08), 0 4px 12px rgba(15, 40, 60, 0.04);
border-color: #cbd5e0;
transform: translateY(-3px);
}
.ft-icon {
width: 44px;
height: 44px;
margin: 0 auto 20px;
color: var(--accent2);
display: flex;
align-items: center;
justify-content: center;
background: #e8f5e9;
border-radius: 50%;
padding: 10px;
}
.ft-icon svg { width: 100%; height: 100%; }
.ft-from { font-size: 0.875rem; color: var(--text-light); margin-bottom: 14px; font-weight: 500; }
.ft-arrow {
width: 24px;
height: 24px;
margin: 0 auto 14px;
color: var(--accent);
}
.ft-arrow svg { width: 100%; height: 100%; }
.ft-to { font-size: 1.0625rem; color: var(--primary-dark); font-weight: 600; line-height: 1.4; }
@media (max-width: 768px) { .from-to-grid { grid-template-columns: 1fr; } }
/* Organization tier grid (clean cards, no color bars) */
.org-tier-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.org-tier { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px; transition: var(--transition); }
.org-tier:hover { box-shadow: var(--shadow-md); border-color: #cbd5e0; transform: translateY(-2px); }
.tier-label { display: inline-block; font-size: 0.6875rem; font-weight: 600; color: var(--accent); text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 12px; padding: 3px 10px; background: var(--accent-light); border-radius: var(--radius-sm); }
.org-tier h3 { font-size: 1.125rem; color: var(--primary-dark); margin-bottom: 16px; font-weight: 600; }
.member-list { list-style: none; padding: 0; }
.member-list li { padding: 12px 0; border-bottom: 1px solid var(--border-soft); font-size: 0.875rem; display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.member-list li:last-child { border-bottom: none; }
.m-role { display: block; font-size: 0.75rem; color: var(--text-light); margin-top: 4px; }
/* Working Group — editorial numbered index (not a card grid)
大号描边序号 + 垂直连线 + 逐项主题色, 悬停序号填色/下划线展开 */
.wg-grid { display: flex; flex-direction: column; max-width: 880px; margin: 0 auto; position: relative; }
.wg-grid::before { content: ''; position: absolute; left: 47px; top: 30px; bottom: 30px; width: 2px; background: var(--border); }
.wg-card { --acc: var(--primary); position: relative; display: grid; grid-template-columns: 96px 1fr; gap: 28px; align-items: start; padding: 26px 6px; }
.wg-card + .wg-card { border-top: 1px solid var(--border-soft); }
.wg-numcell { text-align: center; position: relative; z-index: 1; }
.wg-num { display: inline-block; font-family: var(--font-display); font-size: 46px; line-height: 1; font-weight: 400; letter-spacing: -1px; color: var(--acc); background: var(--bg); padding: 2px 6px; transition: color .25s ease; }
@supports (-webkit-text-stroke: 1px #000) {
.wg-num { color: transparent; -webkit-text-stroke: 1.5px var(--acc); }
}
.wg-card:hover .wg-num { color: var(--acc); }
.wg-card h4 { font-size: 1.0625rem; color: var(--primary-dark); margin-bottom: 8px; font-weight: 700; line-height: 1.35; }
.wg-card h4::after { content: ''; display: block; width: 34px; height: 2px; background: var(--acc); margin-top: 10px; border-radius: 2px; transition: width .3s ease; }
.wg-card:hover h4::after { width: 58px; }
.wg-card p { font-size: 0.875rem; color: var(--text-light); line-height: 1.65; margin-top: 12px; }
.wg-card:nth-child(1) { --acc: #1f6fb2; }
.wg-card:nth-child(2) { --acc: #0e8f7a; }
.wg-card:nth-child(3) { --acc: #c86a1e; }
.wg-card:nth-child(4) { --acc: #b44a32; }
.wg-card:nth-child(5) { --acc: #4c8a2a; }
@media (max-width: 620px) {
.wg-grid::before { display: none; }
.wg-card { grid-template-columns: 1fr; gap: 10px; padding: 22px 4px; }
.wg-numcell { text-align: left; }
.wg-num { font-size: 36px; }
}
/* (old mvc/from-to styles replaced - see page header section) */
/* Why Global Participation - Asymmetric dual-card layout (PPT参考)
左卡片: 深色实底主卡片 (hero treatment)
右卡片: 浅色极简支撑卡片 (supporting treatment)
设计语言: 大号数字水印 + 圆形/方形图标 + 不对称视觉权重
*/
.why-cards {
display: grid;
grid-template-columns: 1.1fr 1fr; /* 左略宽于右, 营造不对称 */
gap: 20px;
max-width: 1240px;
margin: 0 auto;
}
.why-card {
position: relative;
padding: 40px 36px 36px;
border-radius: var(--radius-lg);
overflow: hidden;
transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.35s ease;
}
/* 大号数字水印 */
.why-card-watermark {
position: absolute;
top: 12px;
right: 24px;
font-family: var(--font-display);
font-size: 5.5rem;
font-weight: 400;
line-height: 1;
pointer-events: none;
user-select: none;
}
/* 圆形图标容器 */
.why-card-icon {
width: 52px;
height: 52px;
margin-bottom: 24px;
display: flex;
align-items: center;
justify-content: center;
border-radius: 50%;
}
.why-card-icon svg { width: 32px; height: 32px; }
.why-card h3 {
font-size: 1.25rem;
font-weight: 600;
line-height: 1.35;
margin-bottom: 12px;
max-width: 85%; /* 避免与水印重叠 */
}
.why-card p {
font-size: 0.9375rem;
line-height: 1.7;
max-width: 92%;
}
/* 左卡片: 深色实底 */
.why-card--dark {
background: linear-gradient(155deg, #003d5c 0%, #005080 60%, #0066a0 100%);
color: #fff;
box-shadow:
0 4px 24px rgba(0, 60, 100, 0.18),
0 1px 3px rgba(0, 60, 100, 0.08);
}
.why-card--dark .why-card-watermark { color: rgba(255, 255, 255, 0.08); }
.why-card--dark .why-card-icon {
background: rgba(255, 255, 255, 0.12);
color: #b8ddee;
border: 1px solid rgba(255, 255, 255, 0.15);
}
.why-card--dark h3 { color: #fff; }
.why-card--dark p { color: rgba(255, 255, 255, 0.85); }
.why-card--dark:hover {
transform: translateY(-4px);
box-shadow:
0 12px 40px rgba(0, 60, 100, 0.25),
0 4px 12px rgba(0, 60, 100, 0.12);
}
/* 右卡片: 浅色极简 */
.why-card--light {
background: #fff;
color: var(--text);
border: 1px solid var(--border);
box-shadow: 0 1px 3px rgba(15, 40, 60, 0.04);
}
.why-card--light .why-card-watermark { color: rgba(0, 102, 160, 0.06); }
.why-card--light .why-card-icon {
background: var(--primary-light);
color: var(--primary);
}
.why-card--light h3 { color: var(--primary-dark); }
.why-card--light p { color: var(--text-light); }
.why-card--light:hover {
transform: translateY(-4px);
box-shadow:
0 12px 40px rgba(15, 40, 60, 0.10),
0 4px 12px rgba(15, 40, 60, 0.05);
border-color: #cbd5e0;
}
@media (max-width: 768px) {
.why-cards { grid-template-columns: 1fr; }
.why-card-watermark { font-size: 4rem; }
}
/* What We Do - clean icon cards (canonical styles defined below) */
/* Events & Highlights - 3列卡片: 上图下文 (PPT参考: image-top + text-bottom)
设计语言: 学术机构极简风, 3px彩色顶条, 标签pill, 图片+标题+摘要+日期+Read more
色彩: Announcement=蓝, Conference=绿, Opportunity=橙
*/
.news-grid {
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: 20px;
max-width: 1320px;
margin: 0 auto;
}
.news-card {
background: #fff;
border: 1px solid var(--border);
border-radius: 0;
display: flex;
flex-direction: column;
transition: box-shadow 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
overflow: hidden;
}
/* 顶部彩色条 */
.news-card-bar {
height: 3px;
width: 100%;
}
.news-card--blue .news-card-bar { background: #1565c0; }
.news-card--green .news-card-bar { background: #2e7d32; }
.news-card--orange .news-card-bar { background: #e65100; }
/* 卡片图片区域 */
.news-card-image {
width: 100%;
height: 180px;
object-fit: cover;
display: block;
}
/* hover: 微提升 + 阴影 */
.news-card:hover {
transform: translateY(-3px);
box-shadow:
0 8px 28px rgba(15, 40, 60, 0.08),
0 2px 8px rgba(15, 40, 60, 0.04);
border-color: #cbd5e0;
}
.news-card-body {
padding: 22px 24px 20px;
display: flex;
flex-direction: column;
flex: 1;
}
/* 标签pill: 矩形, 细边框, 大写 */
.news-tag {
display: inline-block;
font-size: 0.625rem;
font-weight: 600;
text-transform: uppercase;
letter-spacing: 0.6px;
padding: 3px 10px;
border-radius: 2px;
margin-bottom: 14px;
width: fit-content;
border: 1px solid;
background: transparent;
}
.t-blue { color: #1565c0; border-color: #1565c0; }
.t-green { color: #2e7d32; border-color: #2e7d32; }
.t-orange { color: #e65100; border-color: #e65100; }
.news-card h3 {
font-size: 1.0625rem;
color: var(--primary-dark);
margin-bottom: 8px;
font-weight: 600;
line-height: 1.4;
}
.news-card p {
font-size: 0.8125rem;
color: var(--text-light);
line-height: 1.65;
margin-bottom: 18px;
flex: 1;
}
.news-meta {
display: flex;
justify-content: space-between;
align-items: center;
margin-top: auto;
padding-top: 12px;
border-top: 1px solid var(--border-soft);
}
.news-date {
font-size: 0.6875rem;
color: var(--text-muted);
letter-spacing: 0.3px;
}
.news-link {
font-size: 0.75rem;
font-weight: 600;
transition: color 0.2s ease;
white-space: nowrap;
}
.news-card--blue .news-link { color: #1565c0; }
.news-card--green .news-link { color: #2e7d32; }
.news-card--orange .news-link { color: #e65100; }
.news-link:hover { opacity: 0.7; }
@media (max-width: 900px) {
.news-grid { grid-template-columns: 1fr; max-width: 480px; }
}
/* Experts grid (clean cards) */
.experts-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }
.expert-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; transition: var(--transition); }
.expert-card:hover { box-shadow: var(--shadow-md); border-color: #cbd5e0; transform: translateY(-2px); }
.expert-card .avatar { width: 44px; height: 44px; display: flex; align-items: center; justify-content: center; font-size: 1rem; color: var(--primary); margin-bottom: 14px; font-weight: 600; border: 1.5px solid var(--primary); border-radius: 50%; background: var(--primary-light); }
.expert-card h3 { font-size: 0.9375rem; color: var(--primary-dark); margin-bottom: 4px; font-weight: 600; line-height: 1.3; }
.expert-alt-name { font-size: 0.75rem; color: var(--text-light); font-weight: 400; }
.expert-card .affiliation { font-size: 0.75rem; color: var(--text-light); margin-bottom: 10px; line-height: 1.4; }
.expert-card .field { font-size: 0.6875rem; color: var(--accent); margin-bottom: 8px; line-height: 1.6; }
.expert-card .stats { font-size: 0.625rem; color: var(--text-muted); display: flex; gap: 12px; }
.expert-card .tag { display: inline-block; font-size: 0.625rem; padding: 2px 8px; border-radius: var(--radius-sm); background: var(--primary-light); color: var(--primary); margin-top: 8px; font-weight: 600; }
/* Reservoir table (enhanced) */
.reservoir-table-wrap { overflow-x: auto; max-width: 1200px; margin: 0 auto; border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.reservoir-table { width: 100%; border-collapse: collapse; font-size: 0.8125rem; background: #fff; overflow: hidden; }
.reservoir-table thead { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; }
.reservoir-table th { padding: 14px 16px; text-align: left; font-weight: 600; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.5px; border-bottom: 2px solid var(--accent); }
.reservoir-table td { padding: 12px 16px; border-bottom: 1px solid var(--border-soft); transition: background .15s; }
.reservoir-table tbody tr:hover { background: var(--primary-light); }
.reservoir-table .continent-header td { background: var(--primary-dark); color: #fff; font-weight: 600; font-size: 0.8125rem; text-transform: uppercase; letter-spacing: 1px; padding: 12px 16px; }
/* Join CTA banner - 深蓝渐变背景 + 居中标题 + 白色圆角按钮 (PPT参考)
设计语言: 沉浸式渐变, 通透呼吸感, 单一视觉焦点
*/
.join-cta {
background: linear-gradient(135deg, #002d4a 0%, #005080 45%, #0088b3 100%);
color: #fff;
position: relative;
overflow: hidden;
}
/* 微妙的径向光晕装饰 (不突兀) */
.join-cta::before {
content: '';
position: absolute;
top: -20%;
right: -10%;
width: 60%;
height: 140%;
background: radial-gradient(ellipse, rgba(255, 255, 255, 0.06), transparent 60%);
pointer-events: none;
}
.join-cta .section-inner {
position: relative;
z-index: 1;
text-align: center;
padding: 64px 24px;
max-width: 820px;
}
/* 标题样式 */
.join-cta h2 {
font-family: var(--font-display);
font-size: clamp(1.875rem, 1.3rem + 1.8vw, 2.5rem);
font-weight: 400;
color: #fff;
margin-bottom: 20px;
letter-spacing: -0.3px;
line-height: 1.2;
}
/* 标题下装饰线: 居中, 两色渐变 */
.join-cta h2::after {
content: '';
display: block;
width: 56px;
height: 2px;
background: linear-gradient(90deg, var(--accent), var(--accent2));
margin: 16px auto 0;
border-radius: 1px;
}
.join-cta p {
font-size: 1rem;
line-height: 1.8;
opacity: 0.88;
margin-bottom: 28px;
color: rgba(255, 255, 255, 0.9);
}
/* 按钮: 白底圆角, 深蓝文字, 微妙阴影 */
.join-cta .hero-cta {
background: #fff;
color: var(--primary-dark);
padding: 14px 40px;
font-size: 0.9375rem;
font-weight: 600;
letter-spacing: 0.3px;
border-radius: var(--radius-full);
box-shadow:
0 4px 20px rgba(0, 0, 0, 0.18),
0 1px 3px rgba(0, 0, 0, 0.08);
transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.join-cta .hero-cta:hover {
transform: translateY(-2px);
box-shadow:
0 8px 32px rgba(0, 0, 0, 0.25),
0 2px 6px rgba(0, 0, 0, 0.1);
background: #fff;
color: var(--primary-dark);
}
.join-cta .hero-cta:active {
transform: translateY(0);
}
/* Footer (enhanced) */
footer { background: linear-gradient(180deg, var(--primary-dark), #003d5c); color: #cfe7f3; padding: 64px 24px 0; position: relative; overflow: hidden; }
footer::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, var(--accent), transparent); }
.footer-inner { max-width: var(--maxw); margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; }
.footer-inner h3 { color: #fff; font-size: 1rem; margin-bottom: 20px; font-weight: 600; }
.footer-inner p, .footer-inner a { font-size: 0.8125rem; color: #cfe7f3; line-height: 2; }
.footer-inner a:hover { color: #fff; transition: color .2s; }
.footer-bottom { text-align: center; padding: 24px 0; margin-top: 40px; border-top: 1px solid rgba(255,255,255,0.12); font-size: 0.75rem; color: rgba(255,255,255,0.5); letter-spacing: 0.5px; }
/* ===== Card Style Variants (rich diversity) ===== */
/* Variant A: Icon-top card */
.card-a { background: #fff; border-radius: var(--radius); padding: 28px 26px; border: 1px solid var(--border); transition: border-color .2s; }
.card-a:hover { border-color: var(--accent); }
.card-a .card-icon { font-size: 28px; margin-bottom: 16px; display: block; }
.card-a h3 { font-size: 17px; color: var(--primary-dark); margin-bottom: 8px; font-weight: 700; }
.card-a p { font-size: 14px; color: var(--text-light); line-height: 1.7; }
.card-a .card-tag { display: inline-block; font-size: 11px; padding: 2px 8px; border: 1px solid var(--border); border-radius: 0; color: var(--primary); margin-top: 12px; font-weight: 600; }
/* Variant B: Left-border horizontal card */
.card-b { background: #fff; border-radius: var(--radius); padding: 22px 24px; border: 1px solid var(--border); border-left: 3px solid var(--accent); transition: border-color .2s; display: flex; gap: 18px; align-items: flex-start; }
.card-b:hover { border-left-color: var(--primary); }
.card-b .card-icon { font-size: 22px; flex-shrink: 0; margin-top: 2px; }
.card-b .card-body { flex: 1; }
.card-b h3 { font-size: 16px; color: var(--primary-dark); margin-bottom: 6px; font-weight: 700; }
.card-b p { font-size: 14px; color: var(--text-light); }
.card-b .card-meta { font-size: 12px; color: var(--accent); margin-top: 8px; font-weight: 600; }
/* Variant C: Top-banner card */
.card-c { background: #fff; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); transition: border-color .2s; }
.card-c:hover { border-color: var(--accent); }
.card-c .card-banner { padding: 16px 22px; background: var(--primary-dark); color: #fff; display: flex; align-items: center; gap: 10px; }
.card-c .card-banner .card-icon { font-size: 24px; }
.card-c .card-banner h3 { font-size: 16px; font-weight: 700; }
.card-c .card-banner .card-num { font-size: 11px; opacity: 0.65; font-weight: 600; letter-spacing: 1px; }
.card-c .card-body { padding: 18px 22px; }
.card-c .card-body p { font-size: 14px; color: var(--text); margin-bottom: 8px; }
.card-c .card-body .card-list { list-style: none; margin-top: 10px; }
.card-c .card-body .card-list li { font-size: 13px; color: var(--text-light); padding: 4px 0; padding-left: 16px; position: relative; }
.card-c .card-body .card-list li::before { content: '-'; position: absolute; left: 0; color: var(--accent); font-size: 12px; }
.card-c.alt-green .card-banner { background: #1b6b3a; }
.card-c.alt-teal .card-banner { background: #004d40; }
.card-c.alt-purple .card-banner { background: #4a148c; }
.card-c.alt-orange .card-banner { background: #bf360c; }
.card-c.alt-blue .card-banner { background: #0d47a1; }
/* Variant D: Numbered card */
.card-d { background: #fff; border-radius: var(--radius); padding: 26px 24px; border: 1px solid var(--border); border-top: 2px solid var(--accent); transition: border-color .2s; position: relative; }
.card-d:hover { border-top-color: var(--primary); }
.card-d .card-number { position: absolute; top: -14px; left: 20px; width: 30px; height: 30px; border-radius: 50%; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 800; }
.card-d h3 { font-size: 16px; color: var(--primary-dark); margin: 8px 0 10px; font-weight: 700; }
.card-d p { font-size: 14px; color: var(--text-light); line-height: 1.7; }
.card-d .card-icon { font-size: 22px; margin-bottom: 8px; display: block; }
/* Variant E: Flat card with header strip */
.card-e { background: #fff; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); transition: border-color .2s; }
.card-e:hover { border-color: var(--accent); }
.card-e .card-top { padding: 12px 18px; background: var(--bg-alt); border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
.card-e .card-top .card-label { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; color: var(--accent); }
.card-e .card-top .card-icon { font-size: 18px; }
.card-e .card-body { padding: 18px; }
.card-e .card-body h3 { font-size: 16px; color: var(--primary-dark); margin-bottom: 8px; font-weight: 700; }
.card-e .card-body p { font-size: 14px; color: var(--text-light); line-height: 1.7; }
.card-e .card-footer { padding: 10px 18px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
.card-e .card-footer .card-stat { font-size: 12px; color: var(--text-light); }
.card-e .card-footer .card-stat strong { color: var(--primary); font-size: 14px; }
/* Variant F: Card with visual area */
.card-f { background: #fff; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); transition: border-color .2s; }
.card-f:hover { border-color: var(--accent); }
.card-f .card-visual { height: 100px; background: var(--bg-alt); display: flex; align-items: center; justify-content: center; font-size: 40px; border-bottom: 1px solid var(--border); }
.card-f .card-content { padding: 18px 22px; }
.card-f .card-content h3 { font-size: 16px; color: var(--primary-dark); margin-bottom: 8px; font-weight: 700; }
.card-f .card-content p { font-size: 14px; color: var(--text-light); line-height: 1.7; }
.card-f .card-content .card-tags { display: flex; gap: 6px; margin-top: 10px; flex-wrap: wrap; }
.card-f .card-content .card-tags span { font-size: 11px; padding: 2px 8px; border: 1px solid var(--border); color: var(--text-light); }
/* Variant G: Dark card */
.card-g { background: var(--primary-dark); border-radius: var(--radius); padding: 26px 24px; color: #fff; transition: background .2s; }
.card-g:hover { background: #003d5c; }
.card-g .card-icon { font-size: 26px; margin-bottom: 12px; }
.card-g h3 { font-size: 17px; color: #fff; margin-bottom: 8px; font-weight: 700; }
.card-g p { font-size: 14px; color: rgba(255,255,255,0.75); line-height: 1.7; }
.card-g .card-link { font-size: 13px; color: var(--accent-light); font-weight: 600; margin-top: 12px; display: inline-block; }
.card-g .card-link:hover { color: #fff; }
/* Variant H: Outline card */
.card-h { background: transparent; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px 24px; transition: border-color .2s; }
.card-h:hover { border-color: var(--accent); }
.card-h .card-icon { font-size: 28px; margin-bottom: 14px; }
.card-h h3 { font-size: 16px; color: var(--primary-dark); margin-bottom: 8px; font-weight: 700; }
.card-h p { font-size: 14px; color: var(--text-light); }
/* Grid helpers for card variants */
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
/* Benefits check cards (replaces plain list) */
.benefit-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 16px; max-width: 1000px; margin: 0 auto; }
.benefit-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 22px; display: flex; gap: 14px; align-items: flex-start; transition: border-color .2s; }
.benefit-card:hover { border-color: var(--accent); }
.benefit-card .b-icon { width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; font-size: 16px; flex-shrink: 0; margin-top: 2px; }
.benefit-card .b-icon.b-blue { background: #e3f2fd; color: #1565c0; }
.benefit-card .b-icon.b-green { background: #e8f5e9; color: #2e7d32; }
.benefit-card .b-icon.b-orange { background: #fff3e0; color: #e65100; }
.benefit-card .b-icon.b-purple { background: #f3e5f5; color: #7b1fa2; }
.benefit-card .b-icon.b-teal { background: #e0f2f1; color: #00695c; }
.benefit-card .b-icon.b-pink { background: #fce4ec; color: #c62828; }
.benefit-card .b-text { flex: 1; }
.benefit-card .b-text h4 { font-size: 15px; color: var(--primary-dark); margin-bottom: 4px; font-weight: 600; }
.benefit-card .b-text p { font-size: 13px; color: var(--text-light); line-height: 1.6; }
/* Partner logo cards */
.partner-logo-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 24px 20px; text-align: center; transition: border-color .2s; }
.partner-logo-card:hover { border-color: var(--accent); }
.partner-logo-card .p-logo { width: 48px; height: 48px; display: flex; align-items: center; justify-content: center; font-size: 20px; font-weight: 800; color: var(--primary); margin: 0 auto 12px; border: 2px solid var(--primary); border-radius: 50%; }
.partner-logo-card h3 { font-size: 16px; color: var(--primary-dark); margin-bottom: 6px; font-weight: 700; }
.partner-logo-card p { font-size: 12px; color: var(--text-light); line-height: 1.6; }
.partner-logo-card .p-tag { display: inline-block; font-size: 10px; padding: 2px 10px; border-radius: 10px; background: var(--primary-light); color: var(--primary); margin-top: 8px; font-weight: 600; }
/* Timeline / Step flow */
.step-flow { display: flex; flex-wrap: wrap; gap: 0; justify-content: center; max-width: 1000px; margin: 0 auto; }
.step-flow .step-item { flex: 1; min-width: 180px; text-align: center; position: relative; padding: 0 16px; }
.step-flow .step-item::after { content: '→'; position: absolute; right: -8px; top: 28px; color: var(--accent); font-size: 20px; font-weight: bold; }
.step-flow .step-item:last-child::after { display: none; }
.step-flow .step-circle { width: 52px; height: 52px; border-radius: 50%; background: #fff; border: 2px solid var(--accent); display: flex; align-items: center; justify-content: center; font-size: 22px; margin: 0 auto 12px; transition: border-color .2s; }
.step-flow .step-item:hover .step-circle { border-color: var(--primary); }
.step-flow h4 { font-size: 14px; color: var(--primary-dark); margin-bottom: 4px; font-weight: 600; }
.step-flow p { font-size: 12px; color: var(--text-light); }
/* ===== Homepage - Rich visual diversity ===== */
/* Hero - floating shapes + badge + stats bar */
.hero-badge { display: inline-block; background: rgba(255,255,255,0.15); border: 1px solid rgba(255,255,255,0.3); padding: 5px 18px; border-radius: 20px; font-size: 12px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 20px; }
.hero-shapes { position: absolute; top: 0; left: 0; right: 0; bottom: 0; overflow: hidden; pointer-events: none; z-index: 1; }
.shape { position: absolute; border-radius: 50%; opacity: 0.06; }
.shape-1 { width: 300px; height: 300px; background: #fff; top: -80px; right: 10%; animation: float1 8s ease-in-out infinite; }
.shape-2 { width: 200px; height: 200px; background: var(--accent-light); bottom: 15%; left: 5%; animation: float2 10s ease-in-out infinite; }
.shape-3 { width: 150px; height: 150px; background: var(--accent2); top: 30%; right: 25%; animation: float1 12s ease-in-out infinite; }
@keyframes float1 { 0%,100% { transform: translateY(0) rotate(0deg); } 50% { transform: translateY(-30px) rotate(180deg); } }
@keyframes float2 { 0%,100% { transform: translateX(0) scale(1); } 50% { transform: translateX(20px) scale(1.1); } }
.hero-stats-bar { display: flex; align-items: center; justify-content: center; gap: 0; margin-top: 48px; position: relative; z-index: 2; background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.18); border-radius: 4px; padding: 20px 32px; max-width: 720px; margin-left: auto; margin-right: auto; }
.hero-stat-divider { width: 1px; height: 40px; background: rgba(255,255,255,0.2); margin: 0 24px; }
/* Mission - split layout with visual */
.mission-split { display: grid; grid-template-columns: 1.3fr 1fr; gap: 56px; align-items: center; }
.section-title-left { margin-bottom: 28px; }
.section-title-left h2 { font-size: 32px; font-weight: 700; color: var(--primary-dark); padding-bottom: 10px; border-bottom: 3px solid var(--accent); display: inline-block; }
.mission-quote { font-size: 20px; font-style: italic; color: var(--primary-dark); line-height: 1.8; margin-bottom: 20px; padding: 20px 24px; background: linear-gradient(135deg, var(--primary-light), var(--accent-light)); border-radius: 0 var(--radius) var(--radius) 0; border-left: 4px solid var(--accent); position: relative; }
.mission-split p { font-size: 15px; color: var(--text); margin-bottom: 14px; }
.mission-cta { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; padding: 18px 28px; border-radius: var(--radius); font-size: 17px; font-weight: 600; text-align: center; margin-top: 20px; box-shadow: var(--shadow); }
.mission-right { display: flex; justify-content: center; align-items: center; }
.mission-visual { width: 320px; height: 320px; position: relative; display: flex; align-items: center; justify-content: center; }
.mv-ring { position: absolute; border-radius: 50%; border: 2px dashed rgba(0,102,160,0.2); }
.mv-ring-1 { width: 320px; height: 320px; animation: spin 30s linear infinite; }
.mv-ring-2 { width: 240px; height: 240px; animation: spin 20s linear infinite reverse; border-color: rgba(0,160,200,0.2); }
.mv-ring-3 { width: 160px; height: 160px; animation: spin 15s linear infinite; border-color: rgba(46,139,87,0.2); }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.mv-core { width: 80px; height: 80px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--accent)); display: flex; align-items: center; justify-content: center; font-size: 36px; box-shadow: 0 4px 24px rgba(0,102,160,0.3); z-index: 2; }
.mv-label { position: absolute; font-size: 12px; font-weight: 600; color: var(--primary-dark); background: #fff; padding: 4px 12px; border-radius: 20px; box-shadow: var(--shadow); white-space: nowrap; }
.mv-l1 { top: 10px; left: 50%; transform: translateX(-50%); }
.mv-l2 { right: 10px; top: 40%; }
.mv-l3 { bottom: 10px; right: 25%; }
.mv-l4 { left: 10px; top: 40%; }
.mv-l5 { bottom: 20px; left: 25%; }
/* Science - full-width quote with bg shape */
.science-section { background: linear-gradient(135deg, #001e32, #003d5c, #002d4a); color: #fff; position: relative; overflow: hidden; }
.science-bg-shape { position: absolute; top: -50%; right: -10%; width: 500px; height: 500px; border-radius: 50%; background: radial-gradient(circle, rgba(0,160,200,0.08), transparent 70%); }
.science-quote-block { text-align: center; max-width: 820px; margin: 0 auto; position: relative; z-index: 1; padding: 20px 0; }
.science-mark { font-size: 80px; font-family: Georgia, serif; color: rgba(255,255,255,0.15); line-height: 0.8; margin-bottom: -20px; }
.science-quote-block h3 { font-size: 28px; font-style: italic; color: #fff; margin-bottom: 16px; line-height: 1.5; }
.science-quote-block p { color: rgba(255,255,255,0.8); font-size: 15px; margin-bottom: 24px; }
.science-quote-block .read-more { color: var(--accent-light); border-color: var(--accent-light); }
.science-quote-block .read-more:hover { background: var(--accent-light); color: var(--primary-dark); }
/* What We Do - mixed feature + list（原站设计：白底主卡 + 方形数字序号 + 左侧色条） */
.pillars-mixed { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: start; }
.pillar-feature { background: #fff; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); transition: border-color .2s; min-height: 280px; display: flex; align-items: center; }
.pillar-feature:hover { border-color: var(--accent); }
.pillar-feature-bg { display: none; }
.pillar-feature-content { position: relative; z-index: 1; padding: 36px 32px; }
.pillar-icon-lg { width: 40px; height: 40px; font-size: 40px; margin-bottom: 16px; }
.pillar-feature h3 { font-size: 20px; color: var(--primary-dark); margin-bottom: 10px; font-weight: 700; }
.pillar-feature p { font-size: 14px; color: var(--text-light); line-height: 1.7; margin-bottom: 16px; }
.pillar-link { font-size: 14px; font-weight: 600; color: var(--primary); }
.pillar-list { display: flex; flex-direction: column; gap: 12px; }
.pillar-row { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 22px; display: flex; align-items: center; gap: 18px; transition: border-color .2s; border-left: 3px solid transparent; }
.pillar-row:hover { border-left-color: var(--accent); }
.pillar-num { width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; font-size: 15px; font-weight: 800; color: #fff; flex-shrink: 0; }
.pillar-num--green { background: #2e7d32; }
.pillar-num--teal { background: #00695c; }
.pillar-num--purple { background: #6a1b9a; }
.pillar-num--orange { background: #d84315; }
.pillar-info { flex: 1; }
.pillar-info h4 { font-size: 16px; color: var(--primary-dark); margin-bottom: 4px; font-weight: 600; }
.pillar-info p { font-size: 13px; color: var(--text-light); }
.pillar-arrow { font-size: 18px; color: var(--text-light); transition: var(--transition); }
.pillar-row:hover .pillar-arrow { color: var(--primary); }
/* (Why Global Participation styles: .why-cards, .why-card, .why-card--dark, .why-card--light - see above) */
/* Experts - alternating profile cards */
.experts-showcase { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; max-width: 900px; margin: 0 auto; }
.expert-profile { border-radius: var(--radius); padding: 22px; display: flex; gap: 18px; align-items: flex-start; transition: border-color .2s; border: 1px solid var(--border); border-left: 3px solid; background: #fff; }
.expert-profile:hover { border-left-color: var(--primary); }
.expert-profile--blue { border-left-color: #1565c0; }
.expert-profile--green { border-left-color: #2e7d32; }
.expert-profile--orange { border-left-color: #e65100; }
.expert-profile--purple { border-left-color: #7b1fa2; }
.expert-avatar { width: 44px; height: 44px; display: flex; align-items: center; justify-content: center; font-size: 18px; font-weight: 800; flex-shrink: 0; border: 2px solid currentColor; border-radius: 50%; }
.expert-profile--blue .expert-avatar { color: #1565c0; }
.expert-profile--green .expert-avatar { color: #2e7d32; }
.expert-profile--orange .expert-avatar { color: #e65100; }
.expert-profile--purple .expert-avatar { color: #7b1fa2; }
.expert-info { flex: 1; }
.expert-info h3 { font-size: 16px; color: var(--primary-dark); margin-bottom: 4px; font-weight: 700; }
.expert-alt-name { font-size: 13px; font-weight: 400; color: var(--text-light); }
.expert-aff { font-size: 12px; color: var(--text-light); margin-bottom: 8px; }
.expert-field { font-size: 12px; color: var(--accent); margin-bottom: 6px; line-height: 1.6; }
.expert-stats { font-size: 11px; color: var(--text-light); display: flex; gap: 12px; }
/* Trending - vertical scroll cards */
.trending-scroll { display: flex; gap: 16px; overflow-x: auto; padding: 4px 0 20px; scroll-snap-type: x mandatory; }
.trend-card { flex: 0 0 300px; border-radius: var(--radius); padding: 22px; transition: border-color .2s; scroll-snap-align: start; border: 1px solid var(--border); }
.trend-card:hover { border-color: var(--accent); }
.trend-card--teal { border-left: 3px solid #00695c; }
.trend-card--blue { border-left: 3px solid #1565c0; }
.trend-card--orange { border-left: 3px solid #e65100; }
.trend-card--green { border-left: 3px solid #2e7d32; }
.trend-icon { font-size: 32px; margin-bottom: 12px; }
.trend-label { font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 8px; }
.trend-card--teal .trend-label { color: #00695c; }
.trend-card--blue .trend-label { color: #1565c0; }
.trend-card--orange .trend-label { color: #e65100; }
.trend-card--green .trend-label { color: #2e7d32; }
.trend-card h4 { font-size: 15px; color: var(--primary-dark); margin-bottom: 8px; line-height: 1.4; }
.trend-card p { font-size: 12px; color: var(--text-light); margin-bottom: 10px; }
.trend-link { font-size: 13px; font-weight: 600; }
.trend-card--teal .trend-link { color: #00695c; }
.trend-card--blue .trend-link { color: #1565c0; }
.trend-card--orange .trend-link { color: #e65100; }
.trend-card--green .trend-link { color: #2e7d32; }
/* Spotlight - diagonal split cards */
.spotlight-diagonal { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.spot-card { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); transition: border-color .2s; }
.spot-card:hover { border-color: var(--accent); }
.spot-visual { height: 120px; display: flex; flex-direction: column; align-items: center; justify-content: center; position: relative; }
.spot-visual--blue { background: var(--primary-dark); }
.spot-visual--green { background: #1b6b3a; }
.spot-emoji { font-size: 48px; margin-bottom: 8px; }
.spot-tag { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; color: rgba(255,255,255,0.85); }
.spot-content { padding: 24px; background: #fff; }
.spot-content h3 { font-size: 18px; color: var(--primary-dark); margin-bottom: 10px; font-weight: 700; }
.spot-content p { font-size: 14px; color: var(--text); margin-bottom: 14px; line-height: 1.7; }
.spot-link { font-size: 14px; font-weight: 600; color: var(--primary); }
/* News cards */
.news-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.news-card { background: #fff; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); transition: border-color .2s; display: flex; flex-direction: column; }
.news-card:hover { border-color: var(--accent); }
.news-card-bar { height: 3px; }
.news-card--blue .news-card-bar { background: #1565c0; }
.news-card--green .news-card-bar { background: #2e7d32; }
.news-card--orange .news-card-bar { background: #e65100; }
.news-card-body { padding: 20px 24px 24px; flex: 1; display: flex; flex-direction: column; }
.news-card .news-tag { display: inline-block; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; padding: 2px 8px; border: 1px solid; align-self: flex-start; margin-bottom: 12px; }
.news-tag.t-blue { border-color: #bbdefb; color: #1565c0; }
.news-tag.t-green { border-color: #c8e6c9; color: #2e7d32; }
.news-tag.t-orange { border-color: #ffe0b2; color: #e65100; }
.news-tag.t-purple { border-color: #e1bee7; color: #7b1fa2; }
.news-card h3 { font-size: 16px; color: var(--primary-dark); margin-bottom: 8px; font-weight: 600; line-height: 1.4; }
.news-card p { font-size: 13px; color: var(--text-light); flex: 1; }
.news-meta { display: flex; justify-content: space-between; align-items: center; margin-top: 14px; }
.news-date { font-size: 11px; color: var(--text-light); }
.news-link { font-size: 13px; font-weight: 600; color: var(--primary); }
.news-link:hover { color: var(--accent); }
/* Trending strip */
.trending-bar { display: flex; gap: 16px; overflow-x: auto; padding: 4px 0 16px; }
.trending-card { flex: 0 0 280px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; transition: border-color .2s; border-left: 3px solid var(--accent); }
.trending-card:hover { border-left-color: var(--primary); }
.trending-card .t-label { font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; color: var(--accent); margin-bottom: 6px; }
.trending-card h4 { font-size: 14px; color: var(--primary-dark); margin-bottom: 8px; line-height: 1.4; }
.trending-card p { font-size: 12px; color: var(--text-light); }
.trending-card .t-link { font-size: 12px; font-weight: 600; color: var(--primary); margin-top: 8px; display: inline-block; }
/* Spotlight section */
.spotlight { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.spotlight-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: border-color .2s; display: flex; flex-direction: column; }
.spotlight-card:hover { border-color: var(--accent); }
.spotlight-card .spot-banner { padding: 18px 24px; background: var(--primary-dark); color: #fff; }
.spotlight-card .spot-banner .s-label { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; opacity: 0.7; }
.spotlight-card .spot-banner h3 { font-size: 17px; margin-top: 4px; }
.spotlight-card .spot-body { padding: 20px 24px; flex: 1; }
.spotlight-card .spot-body p { font-size: 14px; color: var(--text); margin-bottom: 12px; }
.spotlight-card .spot-link { font-size: 13px; font-weight: 600; color: var(--primary); }
.spotlight-card.alt .spot-banner { background: #1b6b3a; }
/* Support/Donate strip */
.support-strip { background: linear-gradient(135deg, var(--accent), var(--primary)); border-radius: var(--radius); padding: 32px 40px; display: flex; align-items: center; justify-content: space-between; gap: 24px; color: #fff; box-shadow: var(--shadow-lg); }
.support-strip h3 { font-size: 22px; font-weight: 700; margin-bottom: 4px; }
.support-strip p { font-size: 14px; opacity: 0.9; }
.support-strip .support-btn { background: #fff; color: var(--primary-dark); padding: 12px 32px; border-radius: 30px; font-size: 15px; font-weight: 600; white-space: nowrap; transition: var(--transition); }
.support-strip .support-btn:hover { transform: scale(1.05); box-shadow: 0 4px 20px rgba(0,0,0,0.15); }
/* ===== Dropdown Navigation ===== */
.nav-menu > li { position: relative; }
.nav-dropdown { display: none; position: absolute; top: 100%; left: 0; min-width: 200px; background: #fff; box-shadow: 0 8px 24px rgba(0,60,100,0.12); border-radius: 0 0 6px 6px; padding: 8px 0; z-index: 200; }
.nav-menu > li:hover .nav-dropdown { display: block; }
.nav-dropdown a { display: block; padding: 8px 18px; font-size: 13px; color: var(--text); transition: background .2s, color .2s; }
.nav-dropdown a:hover { background: var(--primary-light); color: var(--primary); }
.nav-dropdown a.active { background: var(--primary-light); color: var(--primary); font-weight: 600; }
.nav-menu > li > a.has-dropdown::after { content: '▾'; font-size: 10px; margin-left: 4px; opacity: 0.6; }
/* ===== Search Bar ===== */
.search-wrap { position: relative; }
.search-input { width: 0; padding: 6px 0; border: none; border-bottom: 2px solid transparent; font-size: 13px; color: var(--text); background: transparent; transition: width .3s, border-color .3s; outline: none; }
.search-wrap.active .search-input { width: 180px; padding: 6px 4px; border-bottom-color: var(--accent); }
.search-btn { background: none; border: none; cursor: pointer; font-size: 16px; color: var(--text); padding: 4px 8px; }
.search-btn:hover { color: var(--primary); }
/* ===== Timeline (History page) ===== */
.timeline { max-width: 900px; margin: 0 auto; position: relative; padding-left: 40px; }
.timeline::before { content: ''; position: absolute; left: 12px; top: 0; bottom: 0; width: 2px; background: linear-gradient(to bottom, var(--accent), var(--primary), var(--primary-dark)); }
.timeline-item { position: relative; margin-bottom: 32px; padding: 16px 24px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); transition: border-color .2s, box-shadow .2s; }
.timeline-item:hover { border-color: var(--accent); box-shadow: var(--shadow-lg); }
.timeline-item::before { content: ''; position: absolute; left: -34px; top: 22px; width: 14px; height: 14px; border-radius: 50%; background: #fff; border: 3px solid var(--accent); z-index: 1; }
.timeline-date { font-size: 12px; font-weight: 700; color: var(--accent); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 6px; }
.timeline-item h4 { font-size: 16px; color: var(--primary-dark); margin-bottom: 6px; font-weight: 700; }
.timeline-item p { font-size: 14px; color: var(--text-light); }
/* ===== History Photo Marquee (发展历程照片轮播) ===== */
.cms-photo-marquee {
position: sticky;
top: 24px;
border-radius: var(--radius);
overflow: hidden;
box-shadow: var(--shadow);
}
.cms-photo-track {
display: flex;
gap: 12px;
width: max-content;
padding: 12px;
animation: cmsPhotoScroll 32s linear infinite;
}
.cms-photo-track.static {
animation: none;
width: 100%;
}
.cms-photo-track.static img {
width: 100%;
height: auto;
max-height: 420px;
object-fit: cover;
}
.cms-photo-marquee:hover .cms-photo-track:not(.static) {
animation-play-state: paused;
}
.cms-photo-track img {
height: 280px;
width: auto;
border-radius: 8px;
object-fit: cover;
flex-shrink: 0;
}
@keyframes cmsPhotoScroll {
from { transform: translateX(0); }
to { transform: translateX(-50%); }
}
@media (max-width: 900px) {
.cms-photo-marquee { position: static; }
.cms-photo-track img { height: 200px; }
}
/* ===== Document List (Key Documents page) ===== */
.doc-list { max-width: 800px; margin: 0 auto; }
.doc-item { display: flex; align-items: center; gap: 16px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 24px; margin-bottom: 12px; transition: border-color .2s, box-shadow .2s; }
.doc-item:hover { border-color: var(--accent); box-shadow: var(--shadow); }
.doc-icon { width: 44px; height: 44px; display: flex; align-items: center; justify-content: center; font-size: 22px; flex-shrink: 0; background: var(--primary-light); color: var(--primary); border-radius: 6px; }
.doc-info { flex: 1; }
.doc-info h4 { font-size: 15px; color: var(--primary-dark); margin-bottom: 2px; font-weight: 600; }
.doc-info p { font-size: 13px; color: var(--text-light); }
.doc-download { font-size: 13px; font-weight: 600; color: var(--primary); padding: 6px 16px; border: 1px solid var(--primary); border-radius: 20px; transition: all .2s; white-space: nowrap; }
.doc-download:hover { background: var(--primary); color: #fff; }
/* ===== Case Study Cards (Best Practices page) ===== */
.case-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 24px; }
.case-card { background: #fff; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); transition: border-color .2s, box-shadow .2s; }
.case-card:hover { border-color: var(--accent); box-shadow: var(--shadow-lg); }
.case-card-visual { height: 160px; background: var(--primary-light); display: flex; align-items: center; justify-content: center; position: relative; color: var(--primary); }
.case-card-visual svg { width: 52px; height: 52px; }
.case-card-visual::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 4px; background: var(--accent); }
.case-country { position: absolute; top: 12px; right: 12px; background: rgba(255,255,255,0.9); padding: 3px 10px; border-radius: 12px; font-size: 11px; font-weight: 600; color: var(--primary-dark); }
.case-card-body { padding: 20px 24px; }
.case-card-body h4 { font-size: 17px; color: var(--primary-dark); margin-bottom: 8px; font-weight: 700; }
.case-card-body p { font-size: 14px; color: var(--text-light); line-height: 1.7; }
.case-card-tags { display: flex; gap: 6px; margin-top: 12px; flex-wrap: wrap; }
.case-card-tags span { font-size: 11px; padding: 3px 10px; border-radius: 12px; background: var(--primary-light); color: var(--primary); font-weight: 600; }
/* ===== Toolkit/Resource Cards ===== */
.toolkit-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.toolkit-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; transition: border-color .2s; position: relative; overflow: hidden; }
.toolkit-card:hover { border-color: var(--accent); }
.toolkit-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--accent); }
.toolkit-icon { font-size: 32px; margin-bottom: 12px; }
.toolkit-card h4 { font-size: 16px; color: var(--primary-dark); margin-bottom: 8px; font-weight: 700; }
.toolkit-card p { font-size: 14px; color: var(--text-light); margin-bottom: 12px; line-height: 1.7; }
.toolkit-link { font-size: 13px; font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; }
.toolkit-link:hover { color: var(--accent); }
/* ===== Video Cards ===== */
.video-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
.video-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: border-color .2s; }
.video-card:hover { border-color: var(--accent); }
.video-thumb { height: 160px; background: linear-gradient(135deg, #1a1a2e, #16213e); display: flex; align-items: center; justify-content: center; font-size: 48px; position: relative; cursor: pointer; }
.video-thumb::after { content: '▶'; position: absolute; width: 56px; height: 56px; border-radius: 50%; background: rgba(255,255,255,0.9); display: flex; align-items: center; justify-content: center; font-size: 20px; color: var(--primary); padding-left: 4px; }
.video-info { padding: 16px 20px; }
.video-info h4 { font-size: 15px; color: var(--primary-dark); margin-bottom: 4px; font-weight: 600; }
.video-info .v-meta { font-size: 12px; color: var(--text-light); margin-bottom: 6px; }
.video-info .v-topic { font-size: 12px; color: var(--accent); font-weight: 600; }
/* ===== Expert Profile Row (Featured Experts) ===== */
.expert-row { display: grid; grid-template-columns: 200px 1fr 280px; gap: 32px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; margin-bottom: 20px; transition: border-color .2s, box-shadow .2s; align-items: start; }
.expert-row:hover { border-color: var(--accent); box-shadow: var(--shadow-lg); }
.expert-photo { width: 200px; height: 240px; background: linear-gradient(135deg, var(--primary-light), var(--accent-light)); border-radius: var(--radius); display: flex; align-items: center; justify-content: center; font-size: 64px; color: var(--primary); }
/* Expert research topic panel (right side) */
.expert-research { background: linear-gradient(135deg, var(--bg-alt), #fff); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; display: flex; flex-direction: column; align-items: center; text-align: center; gap: 10px; min-height: 200px; justify-content: center; }
.research-visual { width: 72px; height: 72px; border-radius: 50%; background: linear-gradient(135deg, var(--accent-light), var(--accent)); display: flex; align-items: center; justify-content: center; font-size: 32px; margin-bottom: 6px; }
.research-topic { font-size: 15px; font-weight: 700; color: var(--primary-dark); line-height: 1.3; }
.research-detail { font-size: 13px; color: var(--text-light); line-height: 1.5; }
/* Video link */
.v-link { display: inline-block; margin-top: 8px; font-size: 13px; font-weight: 600; color: var(--accent); text-decoration: none; padding: 6px 14px; border: 1px solid var(--accent); border-radius: 20px; transition: all .2s; }
.v-link:hover { background: var(--accent); color: #fff; }
/* Responsive: stack expert row on small screens */
@media (max-width: 900px) {
.expert-row { grid-template-columns: 1fr; }
.expert-photo { width: 100%; height: 200px; }
.expert-research { min-height: auto; }
}
.expert-detail h3 { font-size: 20px; color: var(--primary-dark); margin-bottom: 4px; font-weight: 700; }
.expert-detail .e-title { font-size: 14px; color: var(--text-light); margin-bottom: 12px; }
.expert-detail .e-field { font-size: 14px; color: var(--accent); margin-bottom: 12px; font-weight: 600; }
.expert-detail .e-bio { font-size: 14px; color: var(--text); line-height: 1.8; margin-bottom: 12px; }
.expert-detail .e-stats { display: flex; gap: 20px; margin-top: 12px; }
.expert-detail .e-stat { font-size: 13px; color: var(--text-light); }
.expert-detail .e-stat strong { color: var(--primary); font-size: 16px; display: block; }
/* ===== Map Placeholder ===== */
.map-placeholder { width: 100%; height: 500px; background: linear-gradient(135deg, #e3f2fd, #bbdefb); border-radius: var(--radius); display: flex; align-items: center; justify-content: center; position: relative; overflow: hidden; border: 1px solid var(--border); }
.map-placeholder::before { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: url('data:image/svg+xml,'); }
.map-placeholder .map-content { text-align: center; z-index: 1; }
.map-placeholder .map-content .map-icon { font-size: 64px; margin-bottom: 16px; }
.map-placeholder .map-content h3 { font-size: 22px; color: var(--primary-dark); margin-bottom: 8px; }
.map-placeholder .map-content p { font-size: 15px; color: var(--text-light); }
/* ===== Coming Soon / Placeholder Block ===== */
.placeholder-block { max-width: 600px; margin: 0 auto; text-align: center; background: #fff; border: 2px dashed var(--border); border-radius: var(--radius); padding: 48px 32px; }
.placeholder-block .ph-icon { font-size: 56px; margin-bottom: 16px; }
.placeholder-block h3 { font-size: 20px; color: var(--primary-dark); margin-bottom: 8px; font-weight: 700; }
.placeholder-block p { font-size: 15px; color: var(--text-light); line-height: 1.7; }
.placeholder-block .ph-badge { display: inline-block; font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; color: var(--accent); padding: 4px 16px; border: 1px solid var(--accent); border-radius: 20px; margin-top: 16px; }
/* ===== Section Group Title (for categorized lists) ===== */
.group-title { font-size: 20px; font-weight: 700; color: var(--primary-dark); margin: 40px 0 20px; padding-bottom: 8px; border-bottom: 2px solid var(--accent); display: flex; align-items: center; gap: 10px; }
.group-title .g-icon { font-size: 24px; }
/* (old from-to duplicate styles removed - using new ones above) */
/* ===== Responsive dropdown ===== */
@media (max-width: 768px) {
.nav-dropdown { position: static; display: block; box-shadow: none; padding: 0; min-width: 0; }
.nav-menu > li:hover .nav-dropdown { display: none; }
/* .from-to-grid responsive handled in new styles above */
.expert-row { grid-template-columns: 1fr; }
.expert-photo { width: 100%; height: 200px; }
}
/* ===== Hero with background image ===== */
.hero-bg { position: relative; background-size: cover; background-position: center; color: #fff; padding: 120px 24px 140px; text-align: center; overflow: hidden; }
.hero-bg::before { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: linear-gradient(135deg, rgba(0,45,74,0.7), rgba(0,102,160,0.5)); }
.hero-bg .hero-content { position: relative; z-index: 2; }
/* ===== Events Card ===== */
.event-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: border-color .2s, box-shadow .2s; }
.event-card:hover { border-color: var(--accent); box-shadow: var(--shadow-lg); }
.event-card-visual { height: 160px; background: var(--primary-light); display: flex; align-items: center; justify-content: center; position: relative; color: var(--primary); }
.event-card-visual svg { width: 56px; height: 56px; }
.event-card-body { padding: 20px 24px; }
.event-card-body .e-date { font-size: 12px; font-weight: 700; color: var(--accent); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 6px; }
.event-card-body h4 { font-size: 17px; color: var(--primary-dark); margin-bottom: 8px; font-weight: 700; }
.event-card-body p { font-size: 14px; color: var(--text-light); line-height: 1.7; margin-bottom: 12px; }
.event-card-body .e-link { font-size: 14px; font-weight: 600; color: var(--primary); }
/* ===== Mission/Vision/Commitment cards ===== */
/* (old mvc duplicate styles removed) */
/* ===== Organization tiers (no hierarchy arrows) ===== */
.org-tier-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.org-tier { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; transition: border-color .2s; }
.org-tier:hover { border-color: var(--accent); }
.org-tier .tier-label { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; color: var(--accent); margin-bottom: 8px; }
.org-tier h3 { font-size: 18px; color: var(--primary-dark); margin-bottom: 16px; font-weight: 700; }
.org-tier .member-list { list-style: none; }
.org-tier .member-list li { font-size: 14px; color: var(--text); padding: 6px 0; border-bottom: 1px solid var(--border); }
.org-tier .member-list li:last-child { border-bottom: none; }
.org-tier .member-list li .m-role { font-size: 12px; color: var(--text-light); display: block; }
/* ===== Working Group cards: see new editorial numbered-index styles near top of file ===== */
/* ===== News list ===== */
.news-list { max-width: 900px; margin: 0 auto; }
.news-list-item { display: flex; gap: 24px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 24px; margin-bottom: 16px; transition: border-color .2s; }
.news-list-item:hover { border-color: var(--accent); }
.news-list-item .nl-date { text-align: center; flex-shrink: 0; min-width: 70px; }
.news-list-item .nl-date .nl-day { font-size: 28px; font-weight: 800; color: var(--primary); line-height: 1; }
.news-list-item .nl-date .nl-month { font-size: 12px; color: var(--text-light); text-transform: uppercase; letter-spacing: 1px; }
.news-list-item .nl-body { flex: 1; }
.news-list-item .nl-body .nl-tag { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--accent); margin-bottom: 4px; }
.news-list-item .nl-body h4 { font-size: 16px; color: var(--primary-dark); margin-bottom: 6px; font-weight: 600; }
.news-list-item .nl-body .nl-title-row { display: flex; align-items: baseline; flex-wrap: wrap; gap: 6px; margin-bottom: 6px; }
.news-list-item .nl-body .nl-title-row h4 { margin-bottom: 0; }
.news-list-item .nl-body p { font-size: 14px; color: var(--text-light); line-height: 1.7; }
.news-list-item .nl-body .nl-img { width: 100%; max-width: 370px; height: auto; aspect-ratio: 370/180; object-fit: cover; border-radius: 8px; margin-bottom: 10px; display: block; }
.news-list-item .nl-body .nl-source { font-size: 12px; color: var(--text-light); margin-bottom: 6px; }
.news-list-item .nl-body .nl-badge { display: inline-block; font-size: 10px; font-weight: 800; letter-spacing: .5px; padding: 1px 6px; border-radius: 3px; margin-left: 8px; vertical-align: 2px; }
.news-list-item .nl-body .nl-badge-new { background: #2e7d32; color: #fff; }
.news-list-item .nl-body .nl-badge-hot { background: #e65100; color: #fff; }
.news-list-item .nl-body .nl-content { margin-top: 10px; padding-top: 10px; border-top: 1px dashed var(--border); font-size: 14px; color: var(--text); line-height: 1.75; white-space: pre-wrap; }
.news-list-item .nl-body .nl-link { display: inline-block; margin-top: 10px; font-size: 14px; font-weight: 600; color: var(--primary); }
.news-list-item .nl-body .nl-link:hover { color: var(--accent); }
/* ===== Sub Navigation (for About, Resources, etc. with sub-pages) ===== */
.sub-nav { background: rgba(232, 244, 250, 0.85); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); padding: 0; border-bottom: 1px solid var(--border); position: sticky; top: 68px; z-index: 50; }
.sub-nav-inner { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; display: flex; gap: 0; overflow-x: auto; }
.sub-nav-inner a { padding: 14px 20px; font-size: 14px; color: var(--text-light); white-space: nowrap; border-bottom: 3px solid transparent; transition: color .2s, border-color .2s; font-weight: 500; }
.sub-nav-inner a:hover { color: var(--primary); }
.sub-nav-inner a.active { color: var(--primary); border-bottom-color: var(--accent); font-weight: 600; }
.reg-form { max-width: 800px; margin: 0 auto; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 40px; box-shadow: var(--shadow); }
.reg-form .form-section { margin-bottom: 32px; padding-bottom: 24px; border-bottom: 1px solid var(--border); }
.reg-form .form-section:last-of-type { border-bottom: none; }
.reg-form .form-section-title { font-size: 18px; font-weight: 700; color: var(--primary-dark); margin-bottom: 20px; display: flex; align-items: center; gap: 8px; }
.reg-form .form-section-title .step-num { width: 28px; height: 28px; border-radius: 50%; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 14px; }
.form-row { display: flex; gap: 20px; margin-bottom: 16px; }
.form-row.single { flex-direction: column; gap: 0; }
.form-group { flex: 1; }
.form-group label { display: block; font-size: 14px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.form-group label .required { color: #e53935; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 10px 14px; border: 1px solid var(--border); border-radius: 6px; font-size: 14px; color: var(--text); background: #fff; transition: border-color .2s, box-shadow .2s; font-family: inherit; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(0,102,160,0.1); }
.form-group textarea { resize: vertical; min-height: 80px; }
.form-group .hint { font-size: 12px; color: var(--text-light); margin-top: 4px; }
.form-check { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 12px; }
/* 后台「表单管理」动态控制：隐藏字段 / 取消必填后隐藏必填星标 */
.reg-form .form-group.field-off,
.reg-form .form-check.field-off { display: none !important; }
.reg-form .form-group.field-opt .required,
.reg-form .form-check.field-opt .required { display: none !important; }
/* 后台把原本选填的字段设为必填时，自动补上必填星标（:has 兼容现代浏览器，切语言后依然生效） */
.reg-form .form-group.field-req > label:not(:has(.required))::after,
.reg-form .form-check.field-req > label:not(:has(.required))::after { content: ' *'; color: #e53935; }
.form-check input[type="checkbox"] { width: 18px; height: 18px; margin-top: 3px; flex-shrink: 0; cursor: pointer; accent-color: var(--primary); }
.form-check label { font-size: 14px; color: var(--text); cursor: pointer; }
.form-submit { width: 100%; padding: 16px; background: var(--primary); color: #fff; border: none; border-radius: 8px; font-size: 16px; font-weight: 600; cursor: pointer; transition: background .2s; }
.form-submit:hover { background: var(--primary-dark); }
.form-success { display: none; max-width: 800px; margin: 0 auto; background: #e8f5e9; border: 1px solid #a5d6a7; border-radius: var(--radius); padding: 32px; text-align: center; }
.form-success.show { display: block; }
.form-success .check-icon { width: 64px; height: 64px; border-radius: 50%; background: #4caf50; color: #fff; display: flex; align-items: center; justify-content: center; font-size: 32px; margin: 0 auto 16px; }
.form-success h3 { font-size: 22px; color: #2e7d32; margin-bottom: 8px; }
.form-success p { font-size: 15px; color: var(--text); }
@media (max-width: 768px) {
.nav-menu { display: none; }
.hero { padding: 60px 20px 80px; }
.hero h1 { font-size: 28px; }
.hero-stats { gap: 24px; }
.hero-stat .num { font-size: 28px; }
.footer-inner { grid-template-columns: 1fr; }
.section-title h2 { font-size: 22px; }
.sub-hero h1 { font-size: 24px; }
.spotlight { grid-template-columns: 1fr; }
.support-strip { flex-direction: column; text-align: center; }
.trending-card { flex: 0 0 240px; }
section { padding: 48px 16px; }
.news-grid { grid-template-columns: 1fr; }
.card-b { flex-direction: column; }
.step-flow { flex-direction: column; align-items: center; }
.step-flow .step-item::after { display: none; }
.grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
.benefit-cards { grid-template-columns: 1fr; }
.mission-split { grid-template-columns: 1fr; gap: 32px; }
.mission-right { order: -1; }
.pillars-mixed { grid-template-columns: 1fr; }
/* (old why-split responsive removed - now using .why-cards responsive) */
.experts-showcase { grid-template-columns: 1fr; }
.spotlight-diagonal { grid-template-columns: 1fr; }
.hero-stats-bar { flex-direction: column; gap: 16px; padding: 16px; }
.hero-stat-divider { width: 60px; height: 1px; }
.hero h1 { font-size: 26px; }
.trend-card { flex: 0 0 260px; }
}
/* Anchor offset for fixed header */
.news-list-item { scroll-margin-top: 130px; }
/* Site search results dropdown */
.search-results { display:none; position:absolute; top:100%; right:0; margin-top:8px; width:300px; max-height:340px; overflow:auto; background:#fff; border:1px solid var(--border); border-radius:var(--radius); box-shadow:var(--shadow); z-index:300; text-align:left; }
.search-results a { display:block; padding:10px 14px; font-size:14px; color:var(--text); border-bottom:1px solid #f0f2f5; text-decoration:none; }
.search-results a:last-child { border-bottom:none; }
.search-results a:hover { background:#f4f8fb; color:var(--primary-dark); }
/* Expert profile detail link (预留跳转入口) */
.e-profile { display: inline-block; margin-top: 14px; font-size: 0.8125rem; font-weight: 600; color: var(--primary); border-bottom: 1px solid transparent; transition: border-color .2s ease, color .2s ease; }
.e-profile:hover { color: var(--primary-dark); border-bottom-color: var(--primary-dark); }
/* ===== 线性 SVG 图标 (替代 emoji, 统一描边风格) ===== */
.card-h .card-icon, .card-a .card-icon, .toolkit-icon, .doc-icon { color: var(--primary); line-height: 0; }
.card-h .card-icon svg, .card-a .card-icon svg { width: 30px; height: 30px; }
.toolkit-icon svg { width: 32px; height: 32px; }
.doc-icon svg { width: 26px; height: 26px; }
.group-title .g-icon { color: var(--primary); display: inline-flex; align-items: center; line-height: 0; }
.group-title .g-icon svg { width: 24px; height: 24px; }
/* ===== Mobile nav: hamburger + slide-down menu + top bar compact ===== */
.nav-burger { display: none; width: 42px; height: 42px; border: none; background: transparent; cursor: pointer; padding: 0; flex-shrink: 0; }
.nav-burger span { display: block; width: 22px; height: 2px; background: var(--primary-dark); margin: 5px auto; border-radius: 2px; transition: transform .3s ease, opacity .3s ease; }
.nav-burger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-burger.active span:nth-child(2) { opacity: 0; }
.nav-burger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-menu { display: none; }
@media (max-width: 1000px) {
.nav-menu { display: none; }
.nav-burger { display: block; }
.nav-inner { justify-content: space-between; }
.mobile-menu { display: block; max-height: 0; overflow: hidden; background: #fff; transition: max-height .35s ease; }
.mobile-menu.open { max-height: calc(100vh - 110px); overflow-y: auto; border-top: 1px solid var(--border-soft); border-bottom: 1px solid var(--border); box-shadow: var(--shadow-md); }
.mobile-menu a { display: block; padding: 13px 24px; font-size: 15px; color: var(--text); border-bottom: 1px solid var(--border-soft); }
.mobile-menu a:active { background: var(--primary-light); }
.mobile-menu .mm-title { font-weight: 700; color: var(--primary-dark); background: var(--bg-alt); font-size: 12px; text-transform: uppercase; letter-spacing: 1.2px; padding: 10px 24px; }
.mobile-menu .mm-group a:not(.mm-title) { padding-left: 42px; font-size: 14px; color: var(--text-light); }
.mobile-menu .mm-actions { display: flex; gap: 12px; padding: 16px 24px 4px; border-bottom: none; }
.mobile-menu .mm-actions a { flex: 1; text-align: center; border: 1px solid var(--primary); border-radius: var(--radius-full); color: var(--primary); font-weight: 600; padding: 10px 0; }
.mobile-menu .mm-actions .mm-join { background: var(--primary); color: #fff; }
.mobile-menu .mm-search { padding: 14px 24px 20px; }
.mobile-menu .mm-search input { width: 100%; padding: 10px 14px; border: 1px solid var(--border); border-radius: var(--radius); font-size: 14px; outline: none; }
.mobile-menu .mm-search input:focus { border-color: var(--primary); }
#mobileSearchResults { position: static; width: auto; margin-top: 8px; box-shadow: none; max-height: 220px; }
}
@media (max-width: 768px) {
header { font-size: 12px; padding: 5px 0; }
.header-inner { padding: 0 16px; justify-content: flex-end; }
.header-inner .left { display: none; }
.header-inner .right { gap: 6px; }
.header-inner .right a { padding: 3px 12px; font-size: 11px; }
.hb-contact { display: none; }
#langToggle { padding: 4px 12px; font-size: 12px; }
.nav-inner { padding: 0 16px; height: 60px; }
.logo-icon { height: 42px !important; width: auto !important; }
.sub-nav { top: 60px; }
/* 二级页横条: 页签均分宽度+允许换行, 保证全部可见; 超窄屏仍可横滑兜底 */
.sub-nav-inner { padding: 0 6px; }
.sub-nav-inner a { flex: 1 1 0; min-width: 0; white-space: normal; text-align: center; padding: 10px 6px; font-size: 13px; line-height: 1.35; }
}
@media (max-width: 480px) {
.logo-text small { display: none; }
.logo-text span { font-size: 1.125rem; }
}