/* ============================================================
   CSS Reset & Root Variables
   ============================================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #2563EB;
    --primary-light: #60A5FA;
    --accent: #0EA5E9;
    --bg: #F8FAFC;
    --surface: #FFFFFF;
    --text: #1E293B;
    --text2: #64748B;
    --text3: #94A3B8;
    --card: #FFFFFF;
    --border: #E5E7EB;
    --radius: 16px;
    --radius-sm: 12px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, .04);
    --shadow: 0 4px 16px rgba(0, 0, 0, .06);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, .08);
    --shadow-xl: 0 24px 64px rgba(0, 0, 0, .12);
    --ease: cubic-bezier(.22, .61, .36, 1);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', 'HarmonyOS Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    display: block;
    max-width: 100%;
}

::-webkit-scrollbar {
    width: 5px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: #CBD5E1;
    border-radius: 3px;
}

/* ============================================================
   Utility 复用
   ============================================================ */
.layer{
    min-height:100vh;
    max-width: 1024px;
    margin: 0 auto;
    padding: 0 10px;
}

.section {
    padding: 40px 0;
}

.section-tag {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 4px;
    color: var(--primary);
    text-transform: uppercase;
    margin-bottom: 14px;
}

.section-title {
    font-size: 44px;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -1.5px;
    margin-bottom: 18px;
    line-height: 1.1;
}

.section-desc {
    font-size: 17px;
    color: var(--text2);
    max-width: 560px;
    line-height: 1.8;
}

.section-head {
    text-align: center;
    margin-bottom: 30px;
}

.section-head .section-desc {
    margin: 0 auto;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 15px;
    font-weight: 600;
    border-radius: 100px;
    border: none;
    cursor: pointer;
    font-family: inherit;
    letter-spacing: .3px;
    transition: all .3s var(--ease);
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 4px 20px rgba(37, 99, 235, .3);
}

.btn-primary:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(37, 99, 235, .4);
}

.btn-secondary {
    background: var(--surface);
    color: var(--primary);
    border: 1.5px solid rgba(37, 99, 235, .15);
}

.btn-secondary:hover {
    border-color: var(--primary);
    background: rgba(37, 99, 235, .03);
}

.reveal {
    opacity: 0;
    transform: translateY(36px);
    transition: all .7s var(--ease);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================================
   Header
   ============================================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 72px;
    background: rgba(255, 255, 255, .85);
    transition: all .4s ease;
}

.header.scrolled {
    background: rgba(255, 255, 255, .7);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, .05);
}

.header-inner {
    display: flex;
    align-items: center;
    height: 100%;
    max-width: 1024px;
    margin: 0 auto;
    padding:0 10px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.logo-mark {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 18px;
    font-weight: 800;
}

.logo-cn {
    font-size: 17px;
    font-weight: 700;
    color: var(--text);
    letter-spacing: 1.5px;
    line-height: 1.2;
}

.logo-en {
    display: block;
    font-size: 10px;
    font-weight: 500;
    color: var(--text3);
    letter-spacing: 2px;
    margin-top: 1px;
}

.nav {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-left: 56px;
    flex: 1;
}

.nav a {
    position: relative;
    padding: 8px 10px;
    font-size: 16px;
    font-weight: 500;
    color: var(--text2);
    border-radius: 10px;
    transition: all .25s ease;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--primary);
    border-radius: 1px;
    transition: width .3s var(--ease);
}

.nav a:hover, .nav a.active {
    color: var(--primary);
}

.nav a:hover::after, .nav a.active::after {
    width: calc(100% - 36px);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-left: auto;
}

.stock-badge {
    padding: 6px 14px;
    background: rgba(37, 99, 235, .06);
    color: var(--primary);
    border-radius: 8px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 1px;
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
    position: relative;
    min-height: 700px;
    padding-top:50px;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: linear-gradient(160deg, #F0F5FF 0%, #F8FAFC 40%, #EFF6FF 70%, #F0F9FF 100%);
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.hero-inner {
    display: flex;
    align-items: center;
    gap: 80px;
    position: relative;
    z-index: 2;
    max-width: 1024px;
    margin: 0 auto;
    padding: 0 40px;
    width: 100%;
}

.hero-left {
    flex: 1;
}

.hero-tag {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 4px;
    color: var(--primary);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.hero-tag::before {
    content: '';
    width: 32px;
    height: 1.5px;
    background: var(--primary);
}

.hero-title {
    font-size: 68px;
    font-weight: 900;
    line-height: 1.08;
    letter-spacing: -2.5px;
    color: #0F172A;
    margin-bottom: 22px;
}

.hero-title span {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-desc {
    font-size: 17px;
    color: var(--text2);
    line-height: 1.8;
    margin-bottom: 36px;
    max-width: 480px;
}

.hero-btns {
    display: flex;
    gap: 14px;
    margin-bottom: 52px;
}

.hero-stats {
    display: flex;
    gap: 48px;
}

.hero-stat {
    text-align: center;
}

.hero-stat-num {
    font-size: 30px;
    font-weight: 800;
    color: var(--text);
}

.hero-stat-label {
    font-size: 12px;
    color: var(--text3);
    margin-top: 4px;
}

.hero-right {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.hero-visual {
    position: relative;
    width: 460px;
    height: 460px;
}

.visual-orb {
    position: absolute;
    border-radius: 50%;
}

.visual-orb-1 {
    width: 260px;
    height: 260px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle, rgba(37, 99, 235, .12), transparent 70%);
    animation: orbPulse 4s ease-in-out infinite;
}

.visual-orb-2 {
    width: 160px;
    height: 160px;
    top: 15%;
    right: 5%;
    background: radial-gradient(circle, rgba(14, 165, 233, .14), transparent 60%);
    animation: orbFloat 5s ease-in-out infinite;
}

.visual-orb-3 {
    width: 120px;
    height: 120px;
    bottom: 10%;
    left: 5%;
    background: radial-gradient(circle, rgba(96, 165, 250, .12), transparent 60%);
    animation: orbFloat 6s ease-in-out infinite reverse;
}

.visual-ring {
    position: absolute;
    border-radius: 50%;
    border: 1.5px solid rgba(37, 99, 235, .1);
}

.visual-ring-1 {
    width: 320px;
    height: 320px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotateX(60deg);
    animation: ringSpin 14s linear infinite;
}

.visual-ring-2 {
    width: 380px;
    height: 380px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotateX(60deg) rotateY(30deg);
    animation: ringSpin 18s linear infinite reverse;
    border-color: rgba(96, 165, 250, .06);
}

.visual-grid {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 180px;
    height: 180px;
    display: grid;
    grid-template-columns:repeat(3, 1fr);
    grid-template-rows:repeat(3, 1fr);
    gap: 3px;
}

.visual-grid div {
    background: rgba(37, 99, 235, .06);
    border-radius: 4px;
}

.visual-grid div:nth-child(odd) {
    background: rgba(37, 99, 235, .1);
}

.visual-grid div:nth-child(5) {
    background: var(--primary);
    border-radius: 8px;
}

@keyframes orbPulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: .5;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.2);
        opacity: .9;
    }
}

@keyframes orbFloat {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-18px);
    }
}

@keyframes ringSpin {
    to {
        transform: translate(-50%, -50%) rotateX(60deg) rotateZ(360deg);
    }
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text3);
    font-size: 11px;
    letter-spacing: 1px;
    animation: bounce 2s infinite;
}

.hero-scroll span {
    width: 24px;
    height: 40px;
    border: 2px solid var(--text3);
    border-radius: 12px;
    position: relative;
}

.hero-scroll span::after {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--text3);
    border-radius: 2px;
    animation: scrollDot 1.5s infinite;
}

@keyframes bounce {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(-8px);
    }
}

@keyframes scrollDot {
    0% {
        opacity: 1;
        top: 8px;
    }
    100% {
        opacity: 0;
        top: 24px;
    }
}

/* ============================================================
   Business
   ============================================================ */
.business-grid {
    display: grid;
    grid-template-columns:repeat(2, 1fr);
    gap: 24px;
}

.biz-card {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    height: 320px;
    display: flex;
    align-items: flex-end;
    transition: all .5s var(--ease);
}

.biz-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.biz-card:hover .biz-card-name {
    transform: translateY(-4px);
}

.biz-card:hover .biz-card-arrow {
    opacity: 1;
    transform: translateX(0);
}

.biz-card-overlay {
    position: absolute;
    z-index: 1;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 23, 42, .85), rgba(15, 23, 42, .2) 50%, transparent 70%);
}

.biz-card-content {
    position: relative;
    z-index: 2;
    padding: 36px 32px;
    width: 100%;
}

.biz-card-icon {
    position: absolute;
    top: 24px;
    left: 24px;
    z-index: 3;
    display: inline-flex;
    padding: 10px;
    background: rgba(255, 255, 255, .12);
    border-radius: 10px;
    backdrop-filter: blur(8px);
}

.biz-card-name {
    font-size: 24px;
    font-weight: 700;
    color: #fff;
    letter-spacing: -.5px;
    margin-bottom: 8px;
    transition: transform .4s var(--ease);
}

.biz-card-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, .7);
    line-height: 1.6;
    max-width: 360px;
}

.biz-card-arrow {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 16px;
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    opacity: 0;
    transform: translateX(-12px);
    transition: all .4s var(--ease);
}

.biz-card-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

/* ============================================================
   Stats
   ============================================================ */
.stats-section {
    background: var(--surface);
}

.stats-grid {
    display: grid;
    grid-template-columns:repeat(4, 1fr);
    gap: 24px;
}

.stat-card {
    padding: 44px 32px;
    border-radius: var(--radius);
    background: var(--bg);
    text-align: center;
    transition: all .4s var(--ease);
    border: 1px solid transparent;
    cursor: default;
}

.stat-card:hover {
    border-color: var(--border);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.stat-card:hover .stat-icon-wrap {
    transform: scale(1.08);
    background: rgba(37, 99, 235, .1);
}

.stat-icon-wrap {
    width: 56px;
    height: 56px;
    margin: 0 auto 22px;
    background: rgba(37, 99, 235, .06);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all .3s var(--ease);
}

.stat-icon-wrap svg {
    width: 28px;
    height: 28px;
    color: var(--primary);
}

.stat-value {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
    margin-bottom: 8px;
}

.stat-num {
    font-size: 44px;
    font-weight: 900;
    color: var(--text);
    letter-spacing: -2px;
    font-variant-numeric: tabular-nums;
}

.stat-unit {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
}

.stat-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
}

.stat-sub {
    font-size: 12px;
    color: var(--text3);
}

/* ============================================================
   News
   ============================================================ */
.news-section {
    background: var(--surface);
}

.news-layout {
    display: flex;
    gap: 24px;
}

.news-featured {
    border-radius: var(--radius);
    overflow: hidden;
    background: url("/images/home/news.png") center / cover no-repeat;
    transition: all .4s var(--ease);
    flex:6;
    min-width: 0;
    min-height: 360px;
}

.news-featured:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.news-featured:hover .news-featured-title {
    color: var(--primary);
}

.news-featured-img {
    height: 260px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}
.news-featured-tag {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--primary);
    color: #fff;
    padding: 4px 12px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 600;
}

.news-featured-body {
    padding: 28px 32px;
}

.news-featured-date {
    font-size: 13px;
    color: var(--text3);
    margin-bottom: 12px;
}

.news-featured-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text);
    line-height: 1.4;
    margin-bottom: 12px;
    transition: color .3s;
}

.news-featured-desc {
    font-size: 14px;
    color: var(--text2);
    line-height: 1.7;
    margin-bottom: 18px;
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex:4;
}

.news-item {
    display: flex;
    gap: 20px;
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    transition: all .3s var(--ease);
    border: 1px solid transparent;
}

.news-item:hover {
    background: var(--bg);
    border-color: var(--border);
    box-shadow: var(--shadow-sm);
}

.news-item:hover .news-item-title {
    color: var(--primary);
}

.news-timeline {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
    flex-shrink: 0;
}

.tl-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, .1);
    margin-top: 6px;
}

.tl-line {
    width: 1px;
    flex: 1;
    background: var(--border);
    margin: 6px 0;
}

.news-item-body {
    flex: 1;
    min-width: 0;
}

.news-item-date {
    font-size: 12px;
    color: var(--text3);
    font-weight: 500;
}

.news-item-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    margin: 6px 0 4px;
    line-height: 1.4;
    transition: color .3s;
}

.news-item-desc {
    font-size: 13px;
    color: var(--text2);
    line-height: 1.5;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}



/* ============================================================
   Partners
   ============================================================ */
.partners-grid {
    display: grid;
    grid-template-columns:repeat(4, 1fr);
    gap: 20px;
}

.partner-card {
    position: relative;
    padding: 10px;
    border-radius: var(--radius);
    text-align: center;
    background: linear-gradient(160deg, var(--surface) 0%, #F8FAFC 60%, #F0F5FF 100%);
    border: 1px solid var(--border);
    transition: all .4s var(--ease);
    overflow: hidden;
}

.partner-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    opacity: 0;
    transition: opacity .4s var(--ease);
}

.partner-card:hover {
    border-color: rgba(37, 99, 235, .2);
    box-shadow: 0 12px 40px rgba(37, 99, 235, .1);
    transform: translateY(-6px);
    background: linear-gradient(160deg, #fff 0%, #F0F5FF 50%, #EFF6FF 100%);
}

.partner-card:hover::before {
    opacity: 1;
}

.partner-card:hover .partner-name {
    color: var(--primary);
}

.partner-card:hover .partner-icon {
    background: var(--primary);
    box-shadow: 0 8px 24px rgba(37, 99, 235, .25);
}

.partner-card:hover .partner-icon svg {
    color: #fff;
}

.partner-icon {
    width: 34px;
    height: 34px;
    margin: 0 auto 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(37, 99, 235, .06);
    border-radius: 16px;
    transition: all .4s var(--ease);
}

.partner-icon svg {
    width: 32px;
    height: 32px;
    color: var(--primary);
    transition: all .4s var(--ease);
}

.partner-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    transition: color .3s;
    letter-spacing: .3px;
}

/* ============================================================
   Footer
   ============================================================ */
.footer {
    background: #0F172A;
    color: rgba(255, 255, 255, .7);
    font-size: 14px;
}
.footer-container {
    max-width: 1024px;
    margin: 10px auto;
    padding: 20px 10px;
}
.footer-grid {
    display: grid;
    /*grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));*/
    grid-template-columns:repeat(4, 1fr);
    gap: 20px;
}
.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-brand .logo-cn {
    color: #fff;
}

.footer-brand .logo-en {
    color: rgba(255, 255, 255, .4);
}

.footer-about {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, .5);
    margin-bottom: 24px;
    max-width: 420px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: rgba(255, 255, 255, .06);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all .3s;
    color: rgba(255, 255, 255, .5);
}

.footer-social a:hover {
    background: var(--primary);
    color: #fff;
}
.footer-col{
    min-width:130px;
}
.footer-col-title {
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 24px;
    letter-spacing: 1px;
}

.footer-col a, .footer-col p {
    display: block;
    font-size: 13px;
    color: rgba(255, 255, 255, .5);
    margin-bottom: 12px;
    transition: color .2s;
    line-height: 1.6;
}

.footer-col a:hover {
    color: var(--primary-light);
}

.footer-qrcode-img {
    width: 100px;
    height: 100px;
    background: #fff;
    border-radius: 12px;
    padding: 8px;
}

.footer-bottom-links {
    display: flex;
    gap: 24px;
}

.footer-bottom-links a {
    color: rgba(255, 255, 255, .35);
    transition: color .2s;
}

.footer-bottom-links a:hover {
    color: rgba(255, 255, 255, .7);
}
.footer-bottom{
    margin-bottom:20px;
}