/* ==========================================================
   VITA · 命值 品牌官网样式
   设计规范: 主色 #00C896 / 深蓝 #1A2C42 / 强调橙 #FF6B35
   ========================================================== */

:root {
    --color-primary: #00C896;
    --color-primary-dark: #00A87D;
    --color-deep: #1A2C42;
    --color-deep-2: #0F1E33;
    --color-accent: #FF6B35;
    --color-bg: #FFFFFF;
    --color-bg-soft: #F7F9FB;
    --color-bg-dark: #0B1524;
    --color-text: #212B36;
    --color-text-2: #637381;
    --color-text-3: #919EAB;
    --color-border: #E5E8EB;

    --radius-sm: 8px;
    --radius: 14px;
    --radius-lg: 24px;

    --shadow-sm: 0 2px 8px rgba(26, 44, 66, 0.06);
    --shadow: 0 8px 32px rgba(26, 44, 66, 0.08);
    --shadow-lg: 0 24px 60px rgba(26, 44, 66, 0.12);

    --font-cn: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
    --font-en: "Inter", -apple-system, BlinkMacSystemFont, "SF Pro Display", sans-serif;
    --font-stack: var(--font-en), var(--font-cn);

    --w: 1200px;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-stack);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.65;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

a { color: inherit; text-decoration: none; transition: color .2s; }
a:hover { color: var(--color-primary); }

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

.container {
    max-width: var(--w);
    margin: 0 auto;
    padding: 0 24px;
}

/* ========== 通用标题 ========== */
.section {
    padding: 120px 0;
    position: relative;
}

.section-head {
    text-align: center;
    max-width: 780px;
    margin: 0 auto 72px;
}

.eyebrow {
    display: inline-block;
    color: var(--color-primary);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    padding: 6px 14px;
    background: rgba(0, 200, 150, 0.08);
    border-radius: 20px;
    margin-bottom: 20px;
}

.section-title {
    font-size: 44px;
    font-weight: 700;
    line-height: 1.25;
    color: var(--color-deep);
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.section-lead {
    font-size: 18px;
    color: var(--color-text-2);
    line-height: 1.7;
}

.section-more {
    text-align: center;
    margin-top: 48px;
}

/* ========== 按钮 ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    line-height: 1;
    transition: all .25s ease;
    cursor: pointer;
    border: 1.5px solid transparent;
    white-space: nowrap;
}
.btn-primary {
    background: var(--color-primary);
    color: #fff;
    box-shadow: 0 6px 18px rgba(0, 200, 150, 0.28);
}
.btn-primary:hover {
    background: var(--color-primary-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(0, 200, 150, 0.35);
}
.btn-outline {
    background: transparent;
    color: var(--color-deep);
    border-color: var(--color-border);
}
.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-2px);
}
.btn-outline-light {
    color: #fff;
    border-color: rgba(255,255,255,0.35);
}
.btn-outline-light:hover {
    border-color: #fff;
    color: #fff;
    background: rgba(255,255,255,0.1);
}
.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
}
.btn-block { width: 100%; }

/* ========== 顶部导航 ========== */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    background: rgba(255,255,255,0.85);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid transparent;
    transition: all .25s;
}
.site-header.scrolled {
    background: rgba(255,255,255,0.95);
    border-bottom-color: var(--color-border);
    box-shadow: var(--shadow-sm);
}
.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-en);
    font-weight: 800;
    font-size: 22px;
    color: var(--color-deep);
    letter-spacing: -0.02em;
}
.logo-mark {
    width: 36px; height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--color-primary) 0%, #00E0A8 100%);
    color: #fff;
    display: grid;
    place-items: center;
    font-size: 22px;
    font-weight: 800;
    box-shadow: 0 4px 12px rgba(0, 200, 150, 0.35);
}
.logo-sub {
    font-family: var(--font-cn);
    font-size: 12px;
    font-weight: 500;
    color: var(--color-text-2);
    margin-left: 4px;
    letter-spacing: normal;
}
.main-nav {
    display: flex;
    gap: 36px;
}
.main-nav a {
    color: var(--color-text);
    font-size: 15px;
    font-weight: 500;
    position: relative;
}
.main-nav a::after {
    content: '';
    position: absolute;
    left: 50%; bottom: -6px;
    width: 0; height: 2px;
    background: var(--color-primary);
    transition: all .25s;
    transform: translateX(-50%);
}
.main-nav a:hover::after { width: 100%; }

.nav-cta {
    display: flex;
    gap: 12px;
}
.nav-toggle {
    display: none;
    background: none;
    border: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
}
.nav-toggle span {
    width: 24px; height: 2px;
    background: var(--color-deep);
    border-radius: 2px;
    transition: all .25s;
}

/* ========== Hero 首屏 ========== */
.hero {
    position: relative;
    padding: 180px 0 120px;
    overflow: hidden;
    background: linear-gradient(180deg, #F7FBFA 0%, #FFFFFF 100%);
}
.hero-bg {
    position: absolute;
    inset: 0;
    background:
      radial-gradient(circle at 15% 20%, rgba(0, 200, 150, 0.12) 0%, transparent 45%),
      radial-gradient(circle at 85% 30%, rgba(0, 102, 255, 0.08) 0%, transparent 40%),
      radial-gradient(circle at 50% 100%, rgba(255, 107, 53, 0.06) 0%, transparent 55%);
    pointer-events: none;
}
.hero-inner {
    position: relative;
    text-align: center;
    max-width: 900px;
}
/* Split hero: 文案在左,插图在右 */
.hero-split { padding: 160px 0 100px; }
.hero-split .container {
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    gap: 64px;
    align-items: center;
    position: relative;
    z-index: 1;
}
.hero-copy { text-align: left; max-width: 620px; }
.hero-copy .hero-title { font-size: 68px; line-height: 1.08; }
.hero-copy .hero-cta { justify-content: flex-start; }
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}
.hero-visual img {
    width: 100%;
    max-width: 560px;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(0, 200, 150, 0.15));
    animation: float 6s ease-in-out infinite;
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-10px); }
}
@media (max-width: 1024px) {
    .hero-split .container { grid-template-columns: 1fr; gap: 40px; }
    .hero-copy { text-align: center; margin: 0 auto; }
    .hero-copy .hero-cta { justify-content: center; }
    .hero-copy .hero-title { font-size: 56px; }
}
@media (max-width: 768px) {
    .hero-copy .hero-title { font-size: 42px; }
}
.hero-badge {
    display: inline-block;
    padding: 8px 18px;
    background: rgba(0, 200, 150, 0.1);
    color: var(--color-primary-dark);
    border-radius: 30px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 32px;
}
.hero-title {
    font-size: 84px;
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -0.03em;
    color: var(--color-deep);
    margin-bottom: 32px;
    background: linear-gradient(135deg, #1A2C42 0%, #00C896 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero-sub {
    font-size: 20px;
    line-height: 1.7;
    color: var(--color-text-2);
    margin-bottom: 48px;
}
.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 48px;
}
.hero-ref {
    color: var(--color-text-3);
    font-size: 14px;
    letter-spacing: 0.5px;
}
.hero-ref strong {
    color: var(--color-text-2);
    font-weight: 600;
}
.hero-scroll {
    position: absolute;
    bottom: 40px; left: 50%;
    transform: translateX(-50%);
    width: 26px; height: 42px;
    border: 2px solid var(--color-text-3);
    border-radius: 14px;
    display: grid; place-items: center;
    opacity: 0.5;
}
.hero-scroll span {
    width: 4px; height: 8px;
    background: var(--color-text-3);
    border-radius: 2px;
    animation: scroll-anim 1.8s infinite;
}
@keyframes scroll-anim {
    0%   { transform: translateY(-6px); opacity: 0; }
    50%  { opacity: 1; }
    100% { transform: translateY(6px); opacity: 0; }
}

/* ========== 痛点 ========== */
.section-pain { background: var(--color-bg-soft); }
.pain-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.pain-card {
    background: #fff;
    padding: 40px 32px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    transition: all .3s;
    border-top: 3px solid var(--color-accent);
}
.pain-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}
.pain-icon {
    width: 52px; height: 52px;
    border-radius: 12px;
    background: rgba(255, 107, 53, 0.1);
    color: var(--color-accent);
    display: grid; place-items: center;
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 20px;
}
.pain-card h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-deep);
    margin-bottom: 12px;
}
.pain-card p {
    color: var(--color-text-2);
    font-size: 15px;
}

/* ========== 数据流图 ========== */
.section-flow {
    background: #fff;
}
.flow-diagram {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    align-items: stretch;
    gap: 16px;
    margin-bottom: 48px;
}
.flow-node {
    padding: 32px 24px;
    border-radius: var(--radius);
    text-align: center;
    background: var(--color-bg-soft);
    border: 1.5px solid var(--color-border);
}
.flow-node-core {
    background: linear-gradient(135deg, #1A2C42 0%, #0F1E33 100%);
    color: #fff;
    border-color: var(--color-deep);
    transform: scale(1.05);
    box-shadow: 0 24px 60px rgba(26, 44, 66, 0.25);
}
.flow-label {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-deep);
    margin-bottom: 20px;
}
.flow-node-core .flow-label { color: #fff; }
.flow-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-bottom: 16px;
}
.flow-tags span {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(0, 200, 150, 0.1);
    color: var(--color-primary-dark);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
}
.flow-node-core .flow-tags span {
    background: rgba(0, 200, 150, 0.2);
    color: #4ADFB5;
}
.flow-note {
    font-size: 13px;
    color: var(--color-text-3);
    margin-top: 4px;
}
.flow-node-core .flow-note { color: rgba(255,255,255,0.6); }

.flow-arrow {
    width: 40px;
    display: grid;
    place-items: center;
    color: var(--color-primary);
    position: relative;
}
.flow-arrow::after {
    content: '';
    width: 0; height: 0;
    border-left: 12px solid var(--color-primary);
    border-top: 8px solid transparent;
    border-bottom: 8px solid transparent;
}
.flow-arrow::before {
    content: '';
    position: absolute;
    left: 0; right: 12px; top: 50%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-primary));
    transform: translateY(-50%);
}

.flow-promises {
    display: flex;
    justify-content: center;
    gap: 40px;
    list-style: none;
    flex-wrap: wrap;
}
.flow-promises li {
    color: var(--color-text);
    font-size: 15px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}
.check {
    display: grid;
    place-items: center;
    width: 24px; height: 24px;
    background: var(--color-primary);
    color: #fff;
    border-radius: 50%;
    font-size: 13px;
    font-weight: 700;
}

/* ========== 核心能力 ========== */
.section-capability {
    background: var(--color-bg-soft);
}
.cap-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.cap-card {
    background: #fff;
    padding: 40px 28px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    transition: all .3s;
    position: relative;
    overflow: hidden;
}
.cap-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 3px;
    background: linear-gradient(90deg, var(--color-primary) 0%, #4ADFB5 100%);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .3s;
}
.cap-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}
.cap-card:hover::before { transform: scaleX(1); }
.cap-num {
    font-family: var(--font-en);
    font-size: 42px;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: 16px;
    opacity: 0.9;
}
.cap-card h3 {
    font-size: 19px;
    font-weight: 700;
    color: var(--color-deep);
    margin-bottom: 12px;
}
.cap-card p {
    color: var(--color-text-2);
    font-size: 14px;
    line-height: 1.7;
}

/* ========== 场景 ========== */
.section-scenes { background: #fff; }
.scene-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.scene-card {
    display: block;
    padding: 40px 32px;
    border-radius: var(--radius-lg);
    color: #fff;
    position: relative;
    overflow: hidden;
    transition: all .35s;
    min-height: 380px;
}
.scene-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 30px 60px rgba(26, 44, 66, 0.25);
    color: #fff;
}
.scene-1 { background: linear-gradient(135deg, #1A2C42 0%, #2C4A6C 100%); }
.scene-2 { background: linear-gradient(135deg, #00A87D 0%, #00C896 100%); }
.scene-3 { background: linear-gradient(135deg, #FF6B35 0%, #FF8B5C 100%); }
.scene-tag {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(255,255,255,0.15);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 24px;
    backdrop-filter: blur(8px);
}
.scene-card h3 {
    font-size: 26px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 12px;
}
.scene-card > p {
    color: rgba(255,255,255,0.8);
    font-size: 15px;
    margin-bottom: 32px;
}
.scene-metrics {
    display: flex;
    gap: 24px;
    padding: 20px 0;
    border-top: 1px solid rgba(255,255,255,0.15);
    border-bottom: 1px solid rgba(255,255,255,0.15);
    margin-bottom: 32px;
}
.scene-metrics span {
    font-size: 13px;
    color: rgba(255,255,255,0.75);
}
.scene-metrics b {
    display: block;
    font-size: 26px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 4px;
    font-family: var(--font-en);
}
.scene-cta {
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap .2s;
}
.scene-card:hover .scene-cta { gap: 12px; }

/* ========== 数字 ========== */
.section-stats {
    background: linear-gradient(135deg, #1A2C42 0%, #0F1E33 100%);
    color: #fff;
}
.section-stats .section-title { color: #fff; }
.section-stats .eyebrow {
    background: rgba(0, 200, 150, 0.15);
    color: #4ADFB5;
}
.stat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    text-align: center;
}
.stat-item {
    padding: 32px 16px;
    border-right: 1px solid rgba(255,255,255,0.1);
}
.stat-item:last-child { border-right: none; }
.stat-num {
    font-family: var(--font-en);
    font-size: 60px;
    font-weight: 800;
    line-height: 1;
    background: linear-gradient(135deg, #00C896 0%, #4ADFB5 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}
.stat-label {
    color: rgba(255,255,255,0.7);
    font-size: 15px;
    font-weight: 500;
}

/* ========== 合作伙伴 ========== */
.section-partners { background: #fff; }
.partner-track {
    overflow: hidden;
    margin: 0 -24px;
}
.partner-row {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
    padding: 0 24px;
}
.partner-logo {
    padding: 20px 32px;
    background: var(--color-bg-soft);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    color: var(--color-text-2);
    font-weight: 600;
    font-size: 16px;
    min-width: 160px;
    text-align: center;
    transition: all .25s;
}
.partner-logo:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
    background: rgba(0, 200, 150, 0.04);
}
.partner-note {
    text-align: center;
    color: var(--color-text-3);
    font-size: 13px;
    margin-top: 32px;
}

/* ========== 资源中心 ========== */
.section-resources { background: var(--color-bg-soft); }
.resource-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.resource-card {
    display: block;
    background: #fff;
    padding: 32px 28px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    transition: all .3s;
    border-left: 3px solid transparent;
}
.resource-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
    border-left-color: var(--color-primary);
    color: var(--color-deep);
}
.resource-tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(0, 200, 150, 0.1);
    color: var(--color-primary-dark);
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 16px;
}
.resource-card h3 {
    font-size: 19px;
    font-weight: 700;
    line-height: 1.4;
    color: var(--color-deep);
    margin-bottom: 12px;
}
.resource-card p {
    color: var(--color-text-2);
    font-size: 14px;
    margin-bottom: 20px;
    line-height: 1.65;
}
.resource-meta {
    color: var(--color-text-3);
    font-size: 12px;
    letter-spacing: 0.5px;
}

/* ========== 关于我们 ========== */
.section-about { background: #fff; }
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}
.about-text .section-title {
    text-align: left;
}
.about-text .eyebrow { margin-bottom: 16px; }
.about-lead {
    font-size: 20px;
    color: var(--color-text);
    margin-bottom: 20px;
    line-height: 1.6;
    font-weight: 500;
}
.about-text p {
    color: var(--color-text-2);
    margin-bottom: 20px;
    line-height: 1.8;
}
.about-mission {
    padding: 20px 24px;
    background: var(--color-bg-soft);
    border-left: 3px solid var(--color-primary);
    border-radius: 4px;
    font-size: 15px;
    line-height: 2;
    margin-bottom: 32px !important;
}
.about-mission strong {
    color: var(--color-deep);
    font-weight: 700;
}
.mission-card {
    background: linear-gradient(135deg, #1A2C42 0%, #0F1E33 100%);
    border-radius: var(--radius-lg);
    padding: 48px;
    color: #fff;
    box-shadow: 0 30px 60px rgba(26, 44, 66, 0.2);
    position: relative;
    overflow: hidden;
}
.mission-card::before {
    content: '';
    position: absolute;
    top: -40%; right: -20%;
    width: 300px; height: 300px;
    background: radial-gradient(circle, rgba(0, 200, 150, 0.25), transparent 70%);
    border-radius: 50%;
}
.mc-year {
    font-family: var(--font-en);
    font-size: 72px;
    font-weight: 800;
    background: linear-gradient(135deg, #00C896 0%, #4ADFB5 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
    margin-bottom: 32px;
    position: relative;
}
.mc-body { position: relative; }
.mc-line {
    display: flex;
    justify-content: space-between;
    padding: 14px 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    font-size: 14px;
}
.mc-line:last-child { border-bottom: none; }
.mc-line span { color: rgba(255,255,255,0.6); }
.mc-line b { color: #fff; font-weight: 600; }

/* ========== CTA + 表单 ========== */
.section-cta {
    background: linear-gradient(135deg, #0B1524 0%, #1A2C42 60%, #0F2E42 100%);
    color: #fff;
    position: relative;
    overflow: hidden;
}
.section-cta::before {
    content: '';
    position: absolute;
    top: -50%; left: -20%;
    width: 800px; height: 800px;
    background: radial-gradient(circle, rgba(0, 200, 150, 0.15), transparent 60%);
    border-radius: 50%;
    pointer-events: none;
}
.cta-inner {
    text-align: center;
    max-width: 780px;
    margin: 0 auto 80px;
    position: relative;
}
.cta-inner h2 {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
}
.cta-inner p {
    font-size: 18px;
    color: rgba(255,255,255,0.75);
    margin-bottom: 40px;
}
.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 32px;
}
.cta-contact {
    color: rgba(255,255,255,0.6);
    font-size: 14px;
}
.cta-contact a {
    color: var(--color-primary);
    font-weight: 600;
}
.cta-contact a:hover { color: #4ADFB5; }

/* Form */
.contact-form-wrap {
    max-width: 640px;
    margin: 0 auto;
    position: relative;
}
.contact-form {
    background: #fff;
    color: var(--color-text);
    padding: 48px;
    border-radius: var(--radius-lg);
    box-shadow: 0 40px 80px rgba(0,0,0,0.3);
}
.contact-form h3 {
    font-size: 26px;
    font-weight: 700;
    color: var(--color-deep);
    margin-bottom: 8px;
}
.contact-form > p {
    color: var(--color-text-2);
    margin-bottom: 28px;
    font-size: 14px;
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.form-field {
    margin-bottom: 18px;
}
.form-field label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
}
.form-field input,
.form-field select,
.form-field textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 15px;
    color: var(--color-text);
    background: #fff;
    transition: border-color .2s, box-shadow .2s;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 200, 150, 0.15);
}
.form-note {
    text-align: center;
    margin-top: 14px;
    font-size: 12px;
    color: var(--color-text-3);
}
.form-note a { color: var(--color-primary); }

/* ========== Footer ========== */
.site-footer {
    background: #0B1524;
    color: rgba(255,255,255,0.6);
    padding: 80px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.8fr 1fr 1fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 60px;
}
.footer-brand p {
    margin-top: 16px;
    font-size: 14px;
    line-height: 1.7;
}
.footer-addr {
    color: var(--color-text-3);
    font-size: 13px;
}
.footer-logo .logo-text,
.footer-logo .logo-sub {
    color: #fff;
}
.footer-col h4 {
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
    letter-spacing: 1px;
}
.footer-col a {
    display: block;
    color: rgba(255,255,255,0.55);
    font-size: 14px;
    padding: 6px 0;
}
.footer-col a:hover { color: var(--color-primary); }
.qrcode {
    margin-top: 12px;
}
.qr-placeholder {
    width: 100px;
    height: 100px;
    background: rgba(255,255,255,0.05);
    border: 1px dashed rgba(255,255,255,0.2);
    color: rgba(255,255,255,0.4);
    border-radius: 8px;
    display: grid;
    place-items: center;
    font-size: 11px;
    text-align: center;
}
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 24px 0;
}
.footer-bottom .container {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 12px;
    color: rgba(255,255,255,0.4);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .section { padding: 90px 0; }
    .section-title { font-size: 36px; }
    .hero-title { font-size: 64px; }
    .cap-grid, .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .flow-diagram {
        grid-template-columns: 1fr;
    }
    .flow-arrow {
        width: 100%;
        height: 40px;
        transform: rotate(90deg);
    }
    .about-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
}
@media (max-width: 768px) {
    .section { padding: 72px 0; }
    .section-head { margin-bottom: 48px; }
    .section-title { font-size: 28px; }
    .hero { padding: 140px 0 80px; }
    .hero-title { font-size: 44px; }
    .hero-sub { font-size: 16px; }
    .main-nav, .nav-cta { display: none; }
    .nav-toggle { display: flex; }
    .main-nav.active {
        display: flex;
        position: absolute;
        top: 72px; left: 0; right: 0;
        background: #fff;
        flex-direction: column;
        padding: 24px;
        box-shadow: var(--shadow);
        gap: 20px;
    }
    .pain-grid, .cap-grid, .scene-grid, .resource-grid, .stat-grid {
        grid-template-columns: 1fr;
    }
    .stat-item { border-right: none; border-bottom: 1px solid rgba(255,255,255,0.08); }
    .stat-num { font-size: 48px; }
    .form-row { grid-template-columns: 1fr; }
    .contact-form { padding: 32px 24px; }
    .cta-inner h2 { font-size: 32px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .footer-bottom .container { justify-content: center; text-align: center; }
    .mission-card { padding: 32px; }
    .mc-year { font-size: 56px; }
}

/* ========== 滚动动画 ========== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity .8s ease, transform .8s ease;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}