/* 犀牛IP - 全屏沉浸式森林主题 v3.0 */

/* ==================== CSS 变量定义 ==================== */
:root {
    /* 森林绿主色系 */
    --xn-primary: #15803d;
    --xn-primary-light: #22c55e;
    --xn-primary-dark: #14532d;
    --xn-accent: #0891b2;
    
    /* 背景色 */
    --xn-bg: #fafaf9;
    --xn-bg-alt: #f5f5f4;
    --xn-bg-card: #ffffff;
    --xn-bg-dark: #052e16;
    --xn-border: #e7e5e4;
    
    /* 文字颜色 */
    --xn-text: #1c1917;
    --xn-text-muted: #57534e;
    --xn-text-light: #a8a29e;
    --xn-text-white: #fafaf9;
    
    /* 渐变 */
    --xn-gradient: linear-gradient(135deg, #15803d 0%, #22c55e 100%);
    --xn-gradient-dark: linear-gradient(180deg, #052e16 0%, #064e3b 50%, #052e16 100%);
    --xn-gradient-accent: linear-gradient(135deg, #0891b2 0%, #06b6d4 100%);
    
    /* 间距 */
    --xn-section-padding: 120px 0;
    --xn-container-max: 1200px;
    
    /* 圆角 */
    --xn-radius-sm: 8px;
    --xn-radius: 12px;
    --xn-radius-lg: 20px;
    --xn-radius-xl: 28px;
    
    /* 过渡 */
    --xn-transition: all 0.35s ease;
}

/* ==================== 基础重置 ==================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--xn-text);
    background: var(--xn-bg);
    overflow-x: hidden;
}

/* ==================== 悬浮导航栏 ==================== */
.xn-navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 48px;
    background: linear-gradient(180deg, #052e16 0%, #064e3b 100%);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.xn-navbar-inner {
    max-width: var(--xn-container-max);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.xn-navbar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: #ffffff;
}

.xn-navbar-logo img {
    height: 44px;
}

.xn-navbar-logo span {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: #ffffff;
}

.xn-navbar-links {
    display: flex;
    gap: 8px;
}

.xn-navbar-links a {
    padding: 10px 20px;
    color: #ffffff;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    border-radius: var(--xn-radius);
    transition: var(--xn-transition);
}

.xn-navbar-links a:hover,
.xn-navbar-links a.active {
    color: #052e16;
    background: rgba(255, 255, 255, 0.95);
}

.xn-navbar-actions {
    display: flex;
    gap: 12px;
}

.xn-nav-btn {
    padding: 10px 24px;
    border-radius: var(--xn-radius);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--xn-transition);
    cursor: pointer;
}

.xn-nav-btn-outline {
    background: transparent;
    color: #ffffff;
    border: 2px solid #ffffff;
}

.xn-nav-btn-outline:hover {
    background: #ffffff;
    color: #052e16;
    border-color: #ffffff;
}

.xn-nav-btn-primary {
    background: #22c55e;
    color: #ffffff;
    border: 2px solid #4ade80;
    box-shadow: 0 4px 15px rgba(34, 197, 94, 0.3);
}

.xn-nav-btn-primary:hover {
    background: #16a34a;
    border-color: #22c55e;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(34, 197, 94, 0.4);
}

/* ==================== 全屏Hero区域 ==================== */
.xn-hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--xn-gradient-dark);
    overflow: hidden;
}

.xn-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('images/banner-bg.jpg') center/cover;
    opacity: 0.15;
}

.xn-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(74, 222, 128, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(74, 222, 128, 0.08) 1px, transparent 1px),
        linear-gradient(rgba(6, 182, 212, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(6, 182, 212, 0.05) 1px, transparent 1px);
    background-size: 72px 72px, 72px 72px, 18px 18px, 18px 18px;
    mask-image: radial-gradient(circle at center, black 0%, black 45%, transparent 82%);
    opacity: 0.9;
    animation: hero-grid-move 18s linear infinite;
    pointer-events: none;
}

.xn-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 18% 28%, rgba(34, 197, 94, 0.24) 0 2px, transparent 3px),
        radial-gradient(circle at 72% 20%, rgba(125, 211, 252, 0.2) 0 2px, transparent 3px),
        radial-gradient(circle at 82% 68%, rgba(74, 222, 128, 0.18) 0 2px, transparent 3px),
        linear-gradient(115deg, transparent 0%, transparent 30%, rgba(74, 222, 128, 0.12) 31%, transparent 32%, transparent 58%, rgba(6, 182, 212, 0.1) 59%, transparent 60%);
    opacity: 0.75;
    animation: hero-tech-float 9s ease-in-out infinite alternate;
    pointer-events: none;
}

.xn-hero-tech-line {
    position: absolute;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(74, 222, 128, 0.8), rgba(6, 182, 212, 0.45), transparent);
    box-shadow: 0 0 22px rgba(74, 222, 128, 0.35);
    opacity: 0.75;
    pointer-events: none;
}

.xn-hero-tech-line.is-left {
    width: 360px;
    top: 28%;
    left: 8%;
    transform: rotate(-18deg);
    animation: hero-line-scan-left 6s ease-in-out infinite;
}

.xn-hero-tech-line.is-right {
    width: 420px;
    right: 5%;
    bottom: 28%;
    transform: rotate(-18deg);
    animation: hero-line-scan-right 7s ease-in-out infinite;
}

@keyframes hero-grid-move {
    0% { background-position: 0 0, 0 0, 0 0, 0 0; }
    100% { background-position: 72px 72px, 72px 72px, 18px 18px, 18px 18px; }
}

@keyframes hero-tech-float {
    0% { transform: translate3d(-12px, -8px, 0); opacity: 0.55; }
    100% { transform: translate3d(12px, 8px, 0); opacity: 0.85; }
}

@keyframes hero-line-scan-left {
    0%, 100% { transform: translateX(-30px) rotate(-18deg); opacity: 0.2; }
    50% { transform: translateX(70px) rotate(-18deg); opacity: 0.85; }
}

@keyframes hero-line-scan-right {
    0%, 100% { transform: translateX(45px) rotate(-18deg); opacity: 0.18; }
    50% { transform: translateX(-80px) rotate(-18deg); opacity: 0.8; }
}

.xn-hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at 30% 0%, rgba(21, 128, 61, 0.25) 0%, transparent 50%),
                radial-gradient(ellipse at 70% 100%, rgba(8, 145, 178, 0.15) 0%, transparent 50%);
}

.xn-hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    padding: 0 24px;
}

.xn-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 32px;
    backdrop-filter: blur(10px);
}

.xn-hero-badge::before {
    content: '';
    width: 8px;
    height: 8px;
    background: #4ade80;
    border-radius: 50%;
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.xn-hero h1 {
    font-size: clamp(48px, 5.2vw, 80px);
    font-weight: 800;
    color: #fff;
    line-height: 1.05;
    margin-bottom: 24px;
    letter-spacing: -3px;
    white-space: nowrap;
}

.xn-hero-subtitle {
    font-size: 22px;
    color: rgba(255, 255, 255, 0.86);
    margin-bottom: 28px;
    font-weight: 400;
}

.xn-hero-features {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
    margin-bottom: 42px;
}

.xn-hero-features span {
    padding: 10px 18px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.22);
    color: rgba(255, 255, 255, 0.92);
    font-size: 16px;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

.xn-hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}

.xn-hero-qr-wrap {
    position: relative;
    display: inline-flex;
}

.xn-hero-qr {
    position: absolute;
    left: 50%;
    bottom: calc(100% + 18px);
    transform: translate(-50%, 10px);
    width: 220px;
    padding: 18px;
    background: #fff;
    border-radius: 18px;
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.28);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: var(--xn-transition);
    z-index: 5;
}

.xn-hero-qr::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: -8px;
    width: 16px;
    height: 16px;
    background: #fff;
    transform: translateX(-50%) rotate(45deg);
}

.xn-hero-qr img {
    display: block;
    width: 180px;
    height: 180px;
    border-radius: 12px;
}

.xn-hero-qr p {
    margin-top: 10px;
    color: var(--xn-text);
    font-size: 14px;
    font-weight: 600;
    text-align: center;
}

.xn-hero-qr-wrap:hover .xn-hero-qr {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, 0);
}

.xn-hero-btn {
    padding: 18px 40px;
    border-radius: 60px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: var(--xn-transition);
}

.xn-hero-btn-primary {
    background: #fff;
    color: var(--xn-primary-dark);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.xn-hero-btn-primary:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.4);
}

.xn-hero-btn-secondary {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(10px);
}

.xn-hero-btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
    transform: translateY(-4px);
}

.xn-hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.xn-hero-scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(180deg, rgba(255,255,255,0.5), transparent);
    animation: scroll-line 2s infinite;
}

@keyframes scroll-line {
    0% { height: 0; opacity: 1; }
    50% { height: 60px; opacity: 1; }
    100% { height: 60px; opacity: 0; }
}

/* ==================== 全宽区块 ==================== */
.xn-section {
    padding: var(--xn-section-padding);
}

.xn-section-alt {
    background: var(--xn-bg-alt);
}

.xn-section-dark {
    background: var(--xn-gradient-dark);
    color: var(--xn-text-white);
}

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

/* ==================== 区块标题 ==================== */
.xn-section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 72px;
}

.xn-section-eyebrow {
    display: inline-block;
    color: var(--xn-primary);
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 16px;
}

.xn-section-title {
    font-size: 48px;
    font-weight: 800;
    color: var(--xn-text);
    line-height: 1.15;
    margin-bottom: 20px;
    letter-spacing: -1px;
}

.xn-section-dark .xn-section-title {
    color: #fff;
}

.xn-section-desc {
    font-size: 18px;
    color: var(--xn-text-muted);
    line-height: 1.7;
}

.xn-section-dark .xn-section-desc {
    color: rgba(255, 255, 255, 0.7);
}

/* ==================== 功能卡片 ==================== */
.xn-card {
    background: var(--xn-bg-card);
    border-radius: var(--xn-radius-lg);
    padding: 40px 32px;
    transition: var(--xn-transition);
    position: relative;
    overflow: hidden;
}

.xn-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--xn-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.xn-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
}

.xn-card:hover::before {
    transform: scaleX(1);
}

.xn-card-icon {
    width: 64px;
    height: 64px;
    background: var(--xn-gradient);
    border-radius: var(--xn-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.xn-card-icon i {
    font-size: 28px;
    color: #fff;
}

.xn-card-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--xn-text);
    margin-bottom: 12px;
}

.xn-card-text {
    font-size: 15px;
    color: var(--xn-text-muted);
    line-height: 1.7;
}

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

.xn-card-grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.xn-card-grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

/* ==================== 数据展示 ==================== */
.xn-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.xn-stat {
    text-align: center;
    padding: 48px 24px;
    background: var(--xn-bg-card);
    border-radius: var(--xn-radius-lg);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
}

.xn-stat-value {
    font-size: 56px;
    font-weight: 800;
    background: var(--xn-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 8px;
    letter-spacing: -2px;
}

.xn-stat-label {
    font-size: 16px;
    color: var(--xn-text-muted);
    font-weight: 500;
}

/* ==================== 左右区块 ==================== */
.xn-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.xn-split.reverse {
    direction: rtl;
}

.xn-split.reverse > * {
    direction: ltr;
}

.xn-split-content h2 {
    font-size: 44px;
    font-weight: 800;
    color: var(--xn-text);
    margin-bottom: 24px;
    line-height: 1.2;
    letter-spacing: -1px;
}

.xn-split-content p {
    font-size: 17px;
    color: var(--xn-text-muted);
    margin-bottom: 32px;
    line-height: 1.8;
}

.xn-split-visual {
    position: relative;
    border-radius: var(--xn-radius-xl);
    overflow: hidden;
    background: linear-gradient(135deg, var(--xn-primary-dark), var(--xn-primary));
    aspect-ratio: 4/3;
    display: flex;
    align-items: center;
    justify-content: center;
}

.xn-split-visual i {
    font-size: 100px;
    color: rgba(255, 255, 255, 0.2);
}

/* ==================== 时间线 ==================== */
.xn-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    position: relative;
}

.xn-steps::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: linear-gradient(90deg, var(--xn-primary-light), var(--xn-accent));
}

.xn-step {
    text-align: center;
    position: relative;
}

.xn-step-number {
    width: 80px;
    height: 80px;
    background: var(--xn-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 800;
    color: #fff;
    margin: 0 auto 28px;
    box-shadow: 0 10px 30px rgba(21, 128, 61, 0.3);
    position: relative;
    z-index: 1;
}

.xn-step-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--xn-text);
    margin-bottom: 10px;
}

.xn-step-text {
    font-size: 14px;
    color: var(--xn-text-muted);
    line-height: 1.6;
}

/* ==================== CTA区域 ==================== */
.xn-cta {
    padding: 100px 0;
    background: var(--xn-gradient-dark);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.xn-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(34, 197, 94, 0.1) 0%, transparent 60%);
}

.xn-cta h2 {
    font-size: 48px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
    position: relative;
}

.xn-cta p {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 40px;
    position: relative;
}

/* ==================== 按钮样式 ==================== */
.xn-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    border-radius: 60px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--xn-transition);
    border: none;
    cursor: pointer;
}

.xn-btn-primary {
    background: var(--xn-gradient);
    color: #fff;
    box-shadow: 0 8px 25px rgba(21, 128, 61, 0.35);
}

.xn-btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(21, 128, 61, 0.45);
}

.xn-btn-white {
    background: #fff;
    color: var(--xn-primary-dark);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.xn-btn-white:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.2);
}

.xn-btn-outline {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.4);
}

.xn-btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
}

/* ==================== 页面标题区 ==================== */
.xn-page-header {
    padding: 180px 0 100px;
    background: var(--xn-gradient-dark);
    text-align: center;
    position: relative;
}

.xn-page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at 50% 0%, rgba(34, 197, 94, 0.2) 0%, transparent 50%);
}

.xn-page-header h1 {
    font-size: 56px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
    position: relative;
    letter-spacing: -1px;
}

.xn-page-header p {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.7);
    position: relative;
}

/* ==================== 页脚 ==================== */
.xn-footer {
    background: #030d06;
    color: var(--xn-text-white);
    padding: 80px 0 40px;
}

.xn-footer-grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: 60px;
    margin-bottom: 60px;
}

.xn-footer-brand p {
    margin-top: 16px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
}

.xn-footer h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--xn-primary-light);
    margin-bottom: 20px;
}

.xn-footer-links {
    list-style: none;
}

.xn-footer-links li {
    margin-bottom: 12px;
}

.xn-footer-links a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-size: 14px;
    transition: var(--xn-transition);
}

.xn-footer-links a:hover {
    color: #fff;
}

.xn-footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

.xn-float-service {
    position: fixed;
    right: 24px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1200;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    border-radius: 999px 0 0 999px;
    background: linear-gradient(135deg, #22c55e 0%, #06b6d4 100%);
    color: #ffffff;
    text-decoration: none;
    box-shadow: 0 12px 35px rgba(6, 182, 212, 0.35), 0 0 0 4px rgba(34, 197, 94, 0.12);
    transition: var(--xn-transition);
    animation: float-service-pulse 2.4s ease-in-out infinite;
}

.xn-float-service:hover {
    right: 0;
    transform: translateY(-50%) scale(1.04);
    color: #ffffff;
    box-shadow: 0 16px 45px rgba(34, 197, 94, 0.5), 0 0 0 8px rgba(34, 197, 94, 0.14);
}

.xn-float-service-icon {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.22);
    border: 1px solid rgba(255, 255, 255, 0.35);
    flex-shrink: 0;
}

.xn-float-service-icon i {
    font-size: 24px;
}

.xn-float-service-text {
    font-size: 15px;
    font-weight: 800;
    line-height: 1.25;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

@keyframes float-service-pulse {
    0%, 100% { box-shadow: 0 12px 35px rgba(6, 182, 212, 0.35), 0 0 0 4px rgba(34, 197, 94, 0.12); }
    50% { box-shadow: 0 16px 45px rgba(34, 197, 94, 0.5), 0 0 0 10px rgba(34, 197, 94, 0.05); }
}

/* ==================== 首页通知弹窗 ==================== */
.notice-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.5);
}

.notice-modal-content {
    background: #ffffff;
    border-radius: 14px;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.25);
    border: 1px solid #e5e7eb;
    animation: noticeModalPop 0.4s ease-out;
    overflow: hidden;
}

@keyframes noticeModalPop {
    0% { transform: scale(0.5); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

.notice-modal-header {
    background: #f3f4f6;
    padding: 20px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.notice-modal-header h2 {
    margin: 0;
    font-size: 24px;
    color: #1f2937;
    font-weight: 700;
}

.notice-modal-close {
    background: none;
    border: none;
    font-size: 32px;
    color: #6b7280;
    cursor: pointer;
    line-height: 1;
}

.notice-modal-close:hover {
    color: #1f2937;
}

.notice-modal-body {
    padding: 30px 25px;
    color: #374151;
    font-size: 18px;
    line-height: 1.8;
}

.notice-modal-body p {
    margin: 0;
}

.notice-modal-footer {
    padding: 20px 25px 30px;
    text-align: center;
}

.notice-btn {
    background: #0EA5E9;
    color: #ffffff;
    border: none;
    padding: 15px 50px;
    font-size: 18px;
    font-weight: bold;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.3);
}

.notice-btn:hover {
    transform: scale(1.05);
    background: #0284C7;
    box-shadow: 0 10px 24px rgba(14, 165, 233, 0.4);
}

/* ==================== 响应式 ==================== */
@media (max-width: 1024px) {
    .xn-card-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .xn-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .xn-split {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .xn-split.reverse {
        direction: ltr;
    }
    
    .xn-steps {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .xn-steps::before {
        display: none;
    }
}

@media (max-width: 768px) {
    .xn-navbar {
        padding: 16px 24px;
    }
    
    .xn-navbar-links {
        display: none;
    }
    
    .xn-hero h1 {
        font-size: clamp(28px, 6vw, 48px);
        letter-spacing: -1.5px;
    }
    
    .xn-hero-subtitle {
        font-size: 18px;
    }
    
    .xn-section {
        padding: 80px 0;
    }
    
    .xn-section-title {
        font-size: 36px;
    }
    
    .xn-card-grid-4,
    .xn-card-grid-3,
    .xn-card-grid-2 {
        grid-template-columns: 1fr;
    }
    
    .xn-stats {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .xn-stat-value {
        font-size: 40px;
    }
    
    .xn-steps {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .xn-footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .xn-page-header h1 {
        font-size: 40px;
    }
}