/* ==========================================================================
   JMCOMIC DESIGN SYSTEM — "WARM RETRO FUTURISM"
   米白基底 × 珊瑚火焰 × 藻类青绿 — 复古漫画编辑部美学
   ========================================================================== */

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

body {
    font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    overflow-x: hidden;
    background: #FBF7EC;
    color: #1F2828;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    letter-spacing: 0.01em;
}

::selection {
    background: #FF5A36;
    color: #FBF7EC;
}

html {
    scroll-behavior: smooth;
}

/* ==========================================================================
   核心布局 — 居中
   ========================================================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 2;
}

.section {
    padding: 100px 0;
    position: relative;
}

.section:nth-child(even) {
    background: linear-gradient(135deg, #F5EFE2 0%, #FBF7EC 100%);
}

/* 装饰性背景纹理 — 点阵图案 */
.section::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: radial-gradient(#D9CFBC 1px, transparent 1px);
    background-size: 22px 22px;
    opacity: 0.25;
    pointer-events: none;
    z-index: 0;
}

.section > .container {
    position: relative;
    z-index: 1;
}

/* ==========================================================================
   导航 — 杂志式固定顶部
   ========================================================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(251, 247, 236, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(31, 40, 40, 0.1);
    transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
    box-shadow: 0 4px 24px rgba(31, 40, 40, 0.08);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.35rem;
    text-decoration: none;
    color: #1F2828;
    letter-spacing: -0.02em;
    transition: opacity 0.2s;
}

.logo:hover {
    opacity: 0.8;
}

.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    background: linear-gradient(135deg, #FF5A36, #F5B05E);
    color: #FBF7EC;
    box-shadow: 0 4px 12px rgba(255, 90, 54, 0.3);
    transform: rotate(-3deg);
}

.logo::after {
    content: '漫';
    font-size: 0.7rem;
    background: #0F7373;
    color: #FBF7EC;
    padding: 2px 8px;
    border-radius: 20px;
    font-weight: 700;
    letter-spacing: 0.05em;
    margin-left: 2px;
    transform: rotate(3deg);
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.main-nav a {
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 500;
    transition: all 0.25s ease;
    color: #1F2828;
    position: relative;
    letter-spacing: 0.02em;
}

.main-nav a:not(.nav-cta)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: #FF5A36;
    transition: width 0.3s cubic-bezier(0.65, 0.05, 0.36, 1);
}

.main-nav a:not(.nav-cta):hover {
    color: #FF5A36;
}

.main-nav a:not(.nav-cta):hover::after {
    width: 100%;
}

.nav-cta {
    padding: 10px 24px;
    border-radius: 100px;
    color: #FBF7EC !important;
    font-weight: 600 !important;
    background: linear-gradient(135deg, #FF5A36, #E0441D);
    box-shadow: 0 4px 14px rgba(255, 90, 54, 0.3);
    transition: transform 0.2s ease, box-shadow 0.2s ease !important;
}

.nav-cta:hover {
    transform: translateY(-2px) scale(1.03);
    box-shadow: 0 8px 24px rgba(255, 90, 54, 0.4);
}

.nav-cta::after {
    display: none !important;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    background: rgba(15, 115, 115, 0.08);
}

.menu-toggle span {
    width: 20px;
    height: 2px;
    background: #1F2828;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.menu-toggle.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.menu-toggle.open span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ==========================================================================
   HERO — 杂志式分屏标题
   ========================================================================== */
.hero {
    min-height: 92vh;
    display: flex;
    align-items: center;
    padding-top: 76px;
    position: relative;
    background: linear-gradient(160deg, #FBF7EC 0%, #F5EFE2 60%, #EFE5D2 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    width: 480px;
    height: 480px;
    background: radial-gradient(circle, rgba(255, 90, 54, 0.12) 0%, transparent 70%);
    top: -100px;
    right: -80px;
    border-radius: 50%;
    z-index: 1;
}

.hero::after {
    content: '';
    position: absolute;
    width: 360px;
    height: 360px;
    background: radial-gradient(circle, rgba(15, 115, 115, 0.08) 0%, transparent 70%);
    bottom: -120px;
    left: -60px;
    border-radius: 50%;
    z-index: 1;
}

.hero .container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 640px;
    animation: heroFadeIn 0.8s ease both;
}

@keyframes heroFadeIn {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero-eyebrow {
    display: inline-block;
    font-size: 0.82rem;
    font-weight: 700;
    padding: 6px 18px;
    border-radius: 100px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, rgba(255, 90, 54, 0.12), rgba(245, 176, 94, 0.12));
    color: #E0441D;
    letter-spacing: 0.06em;
    border: 1px solid rgba(255, 90, 54, 0.15);
}

.hero h1 {
    font-size: clamp(2.8rem, 5vw, 4.2rem);
    line-height: 1.08;
    margin-bottom: 20px;
    font-weight: 900;
    letter-spacing: -0.03em;
    color: #1F2828;
}

.hero h1 .accent-word {
    color: #FF5A36;
    position: relative;
    display: inline-block;
}

.hero h1 .accent-word::after {
    content: '';
    position: absolute;
    bottom: 6px;
    left: 0;
    width: 100%;
    height: 8px;
    background: linear-gradient(90deg, rgba(255, 90, 54, 0.2), rgba(245, 176, 94, 0.2));
    z-index: -1;
    border-radius: 4px;
}

.hero p {
    font-size: 1.1rem;
    opacity: 0.72;
    max-width: 520px;
    margin-bottom: 36px;
    color: #3D4A3D;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.hero-image {
    border-radius: 20px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 20px 60px rgba(31, 40, 40, 0.12);
    transform: rotate(1.5deg);
    transition: transform 0.4s ease;
}

.hero-image:hover {
    transform: rotate(0deg) scale(1.02);
}

.hero-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, transparent 70%, rgba(31, 40, 40, 0.2));
    z-index: 1;
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    min-height: 400px;
}

/* Hero 底部浮动装饰 */
.hero-scroll-indicator {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: #0F7373;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    opacity: 0.7;
}

.hero-scroll-indicator::after {
    content: '';
    width: 1px;
    height: 44px;
    background: linear-gradient(180deg, #0F7373, transparent);
    animation: scrollPulse 2s infinite;
}

@keyframes scrollPulse {
    0% { transform: none; opacity: 1; }
    50% { transform: translateY(8px); opacity: 0.4; }
    100% { transform: none; opacity: 1; }
}

/* ==========================================================================
   按钮 — 圆角胶囊 + 独特悬停
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 100px;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    color: #FBF7EC;
    background: linear-gradient(135deg, #FF5A36, #E0441D);
    box-shadow: 0 4px 16px rgba(255, 90, 54, 0.35);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 28px rgba(255, 90, 54, 0.45);
}

.btn-outline {
    background: transparent;
    border: 2px solid #0F7373;
    color: #0F7373;
}

.btn-outline:hover {
    background: #0F7373;
    color: #FBF7EC;
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(15, 115, 115, 0.25);
}

.btn-secondary {
    color: #FBF7EC;
    background: #0F7373;
    box-shadow: 0 4px 16px rgba(15, 115, 115, 0.3);
}

.btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(15, 115, 115, 0.4);
    background: #0D5F5F;
}

/* ==========================================================================
   标签/标题 — 大字号排版体系
   ========================================================================== */
.section-label {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    margin-bottom: 16px;
    color: #0F7373;
    text-transform: uppercase;
    padding-left: 20px;
    position: relative;
}

.section-label::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 12px;
    height: 2px;
    background: #FF5A36;
    border-radius: 2px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 16px;
    font-weight: 900;
    letter-spacing: -0.02em;
    line-height: 1.15;
    color: #1F2828;
}

.section-desc {
    max-width: 600px;
    opacity: 0.72;
    margin-bottom: 48px;
    font-size: 1.05rem;
    line-height: 1.7;
    color: #3D4A3D;
}

/* ==========================================================================
   卡片网格 — 剪纸式层叠卡片
   ========================================================================== */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 28px;
}

.category-card {
    border-radius: 16px;
    padding: 32px 28px;
    background: #FBF7EC;
    border: 1px solid #E8DFCC;
    position: relative;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 80px;
    height: 80px;
    background: radial-gradient(circle, rgba(255, 90, 54, 0.08) 0%, transparent 70%);
    border-radius: 0 0 0 80px;
    transition: width 0.3s ease, height 0.3s ease;
}

.category-card:hover {
    transform: translateY(-6px) rotate(-0.5deg);
    box-shadow: 6px 10px 24px rgba(31, 40, 40, 0.08);
    border-color: rgba(255, 90, 54, 0.2);
}

.category-card:hover::before {
    width: 120px;
    height: 120px;
}

.category-card:nth-child(2n)::before {
    background: radial-gradient(circle, rgba(15, 115, 115, 0.08) 0%, transparent 70%);
}

.card-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.4rem;
    background: linear-gradient(135deg, rgba(255, 90, 54, 0.12), rgba(245, 176, 94, 0.12));
    border: 1px solid rgba(255, 90, 54, 0.1);
    transition: all 0.3s ease;
}

.category-card:hover .card-icon {
    transform: scale(1.1) rotate(-3deg);
    background: linear-gradient(135deg, rgba(255, 90, 54, 0.18), rgba(245, 176, 94, 0.18));
}

.category-card:nth-child(2n) .card-icon {
    background: linear-gradient(135deg, rgba(15, 115, 115, 0.12), rgba(15, 115, 115, 0.05));
    border-color: rgba(15, 115, 115, 0.1);
}

.category-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: #1F2828;
}

.category-card p {
    font-size: 0.88rem;
    opacity: 0.7;
    line-height: 1.6;
    color: #3D4A3D;
}

.card-link {
    font-weight: 700;
    font-size: 0.85rem;
    text-decoration: none;
    color: #FF5A36;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 14px;
    transition: gap 0.2s ease;
}

.card-link:hover {
    gap: 12px;
}

/* ==========================================================================
   特性块 — 左右错位布局
   ========================================================================== */
.feature-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.feature-block.reverse {
    direction: rtl;
}

.feature-block.reverse > * {
    direction: ltr;
}

.feature-image {
    border-radius: 20px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 16px 48px rgba(31, 40, 40, 0.1);
    transition: transform 0.4s ease;
}

.feature-image:hover {
    transform: scale(1.01);
}

.feature-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40%;
    background: linear-gradient(180deg, transparent, rgba(31, 40, 40, 0.08));
}

.feature-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.feature-text {
    padding: 20px 0;
}

.feature-text h3 {
    font-size: 1.8rem;
    font-weight: 900;
    margin-bottom: 14px;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color: #1F2828;
}

.feature-text p {
    opacity: 0.75;
    margin-bottom: 24px;
    font-size: 1rem;
    line-height: 1.7;
    color: #3D4A3D;
}

.feature-list {
    list-style: none;
    margin-top: 16px;
}

.feature-list li {
    padding: 8px 0;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    color: #1F2828;
    border-bottom: 1px dashed #E8DFCC;
}

.feature-list li:last-child {
    border-bottom: none;
}

.feature-list li::before {
    content: '✦';
    font-weight: 700;
    color: #FF5A36;
    font-size: 0.75rem;
    background: rgba(255, 90, 54, 0.1);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

/* ==========================================================================
   数据条 — 圆形统计卡片
   ========================================================================== */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
    text-align: center;
}

.stat-item {
    padding: 32px 20px;
    border-radius: 20px;
    background: #FBF7EC;
    border: 1px solid #E8DFCC;
    position: relative;
    transition: all 0.3s ease;
}

.stat-item::before {
    content: '✦';
    position: absolute;
    top: 8px;
    right: 14px;
    font-size: 0.6rem;
    color: rgba(255, 90, 54, 0.3);
}

.stat-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(31, 40, 40, 0.08);
}

.stat-item:nth-child(1) { border-top: 3px solid #FF5A36; }
.stat-item:nth-child(2) { border-top: 3px solid #0F7373; }
.stat-item:nth-child(3) { border-top: 3px solid #F5B05E; }
.stat-item:nth-child(4) { border-top: 3px solid #8A9B6E; }

.stat-number {
    font-size: clamp(2rem, 3vw, 2.6rem);
    font-weight: 900;
    background: linear-gradient(135deg, #1F2828, #4A5A4A);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
}

.stat-item:nth-child(1) .stat-number {
    background: linear-gradient(135deg, #FF5A36, #E0441D);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-item:nth-child(2) .stat-number {
    background: linear-gradient(135deg, #0F7373, #2A9D8F);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.88rem;
    opacity: 0.6;
    margin-top: 8px;
    font-weight: 500;
    letter-spacing: 0.03em;
    color: #3D4A3D;
}

/* ==========================================================================
   内容墙 — 瀑布式漫画格子
   ========================================================================== */
.content-wall {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 28px;
}

.content-wall-item {
    border-radius: 16px;
    overflow: hidden;
    background: #FBF7EC;
    border: 1px solid #E8DFCC;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.content-wall-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(31, 40, 40, 0.1);
    border-color: rgba(255, 90, 54, 0.2);
}

.content-wall-item img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: transform 0.5s ease;
    display: block;
}

.content-wall-item:hover img {
    transform: scale(1.05);
}

.content-wall-body {
    padding: 24px;
}

.content-wall-body h3 {
    font-size: 1.08rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: #1F2828;
    line-height: 1.3;
}

.content-wall-body p {
    font-size: 0.86rem;
    opacity: 0.68;
    line-height: 1.6;
    color: #3D4A3D;
}

.content-wall-body .tag {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 600;
    padding: 3px 12px;
    border-radius: 100px;
    background: rgba(15, 115, 115, 0.1);
    color: #0F7373;
    margin-top: 10px;
    letter-spacing: 0.02em;
}

/* ==========================================================================
   FAQ — 手风琴风格
   ========================================================================== */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid #E8DFCC;
    border-radius: 14px;
    margin-bottom: 12px;
    overflow: hidden;
    cursor: pointer;
    background: #FBF7EC;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: rgba(255, 90, 54, 0.25);
}

.faq-item.open {
    border-color: rgba(255, 90, 54, 0.2);
    box-shadow: 0 8px 24px rgba(31, 40, 40, 0.05);
}

.faq-item .faq-question {
    padding: 20px 24px;
    font-weight: 700;
    font-size: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #1F2828;
    transition: all 0.3s ease;
}

.faq-item .faq-question::after {
    content: '＋';
    font-size: 1.2rem;
    color: #FF5A36;
    font-weight: 400;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.faq-item.open .faq-question {
    color: #FF5A36;
}

.faq-item.open .faq-question::after {
    content: '－';
    transform: rotate(180deg);
}

.faq-item .faq-answer {
    padding: 0 24px 20px;
    display: none;
    opacity: 0.72;
    font-size: 0.95rem;
    line-height: 1.7;
    color: #3D4A3D;
    animation: faqSlide 0.3s ease;
}

@keyframes faqSlide {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 0.72; transform: translateY(0); }
}

.faq-item.open .faq-answer {
    display: block;
}

/* ==========================================================================
   CTA横幅 — 复古太阳
   ========================================================================== */
.cta-banner {
    padding: 80px 48px;
    text-align: center;
    border-radius: 24px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #0F7373 0%, #2A9D8F 50%, #6AB7B0 100%);
    box-shadow: 0 24px 64px rgba(15, 115, 115, 0.3);
}

.cta-banner::before {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 90, 54, 0.2) 0%, transparent 60%);
    top: -200px;
    right: -100px;
    border-radius: 50%;
}

.cta-banner::after {
    content: '漫';
    position: absolute;
    bottom: -40px;
    left: -20px;
    font-size: 12rem;
    font-weight: 900;
    opacity: 0.06;
    color: #FBF7EC;
    line-height: 1;
}

.cta-banner h2 {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    margin-bottom: 16px;
    color: #FBF7EC;
    font-weight: 900;
    letter-spacing: -0.02em;
    position: relative;
    z-index: 1;
}

.cta-banner p {
    color: rgba(251, 247, 236, 0.8);
    margin-bottom: 32px;
    font-size: 1.05rem;
    position: relative;
    z-index: 1;
}

.cta-banner .btn-primary {
    background: #FBF7EC;
    color: #0F7373;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    position: relative;
    z-index: 1;
}

.cta-banner .btn-primary:hover {
    background: #FF5A36;
    color: #FBF7EC;
    box-shadow: 0 12px 32px rgba(255, 90, 54, 0.3);
    transform: translateY(-3px);
}

/* ==========================================================================
   页脚 — 暖色编辑部
   ========================================================================== */
.site-footer {
    background: linear-gradient(180deg, #F5EFE2 0%, #EADFCC 100%);
    padding: 72px 0 28px;
    position: relative;
    border-top: 1px solid rgba(31, 40, 40, 0.06);
}

.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #FF5A36, #F5B05E, #0F7373, #FF5A36);
    background-size: 200% 100%;
    animation: gradientShift 8s linear infinite;
}

@keyframes gradientShift {
    0% { background-position: 0% 0; }
    50% { background-position: 100% 0; }
    100% { background-position: 0% 0; }
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
}

.footer-brand p {
    opacity: 0.7;
    font-size: 0.9rem;
    line-height: 1.7;
    margin-top: 16px;
    max-width: 300px;
}

.footer-brand .logo {
    margin-bottom: 8px;
}

.footer-col h4 {
    font-size: 0.9rem;
    font-weight: 800;
    margin-bottom: 16px;
    color: #1F2828;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    position: relative;
    padding-bottom: 8px;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 24px;
    height: 2px;
    background: #FF5A36;
    border-radius: 2px;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 8px;
}

.footer-col ul a {
    text-decoration: none;
    font-size: 0.88rem;
    opacity: 0.72;
    color: #1F2828;
    transition: all 0.2s ease;
}

.footer-col ul a:hover {
    color: #FF5A36;
    opacity: 1;
    padding-left: 4px;
}

.footer-bottom {
    border-top: 1px solid rgba(31, 40, 40, 0.08);
    margin-top: 48px;
    padding-top: 24px;
    text-align: center;
    font-size: 0.85rem;
    opacity: 0.6;
    color: #1F2828;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-bottom a {
    color: #0F7373;
    text-decoration: none;
    font-weight: 600;
}

.footer-bottom a:hover {
    color: #FF5A36;
}

/* ==========================================================================
   工具类
   ========================================================================== */
.text-accent {
    color: #FF5A36;
}

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

.seo-description {
    max-width: 600px;
    margin: 0 auto 48px;
    opacity: 0.72;
    line-height: 1.7;
    color: #3D4A3D;
}

.mt-0 {
    margin-top: 0;
}

.mb-0 {
    margin-bottom: 0;
}

/* 额外装饰 — 漫画对话框元素 */
.dialog-bubble {
    background: #FBF7EC;
    border: 2px solid #1F2828;
    border-radius: 16px;
    padding: 12px 20px;
    position: relative;
    display: inline-block;
    font-weight: 700;
    box-shadow: 4px 4px 0 #1F2828;
}

.dialog-bubble::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 20px;
    width: 12px;
    height: 12px;
    background: #FBF7EC;
    border-bottom: 2px solid #1F2828;
    border-right: 2px solid #1F2828;
    transform: rotate(45deg);
}

/* 半透明玻璃卡片 */
.glass-card {
    background: rgba(251, 247, 236, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 16px;
    padding: 28px;
    box-shadow: 0 8px 32px rgba(31, 40, 40, 0.06);
}

.deco-dot {
    width: 8px;
    height: 8px;
    background: #FF5A36;
    border-radius: 50%;
    display: inline-block;
}

.deco-dot.teal {
    background: #0F7373;
}

.deco-dot.amber {
    background: #F5B05E;
}

/* ==========================================================================
   响应式 — 移动端
   ========================================================================== */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
        padding-top: 40px;
        padding-bottom: 40px;
    }
    
    .hero {
        min-height: auto;
        padding-top: 100px;
    }
    
    .hero-content {
        max-width: 100%;
        text-align: center;
    }
    
    .hero p {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-image {
        max-width: 480px;
        margin: 0 auto;
        width: 100%;
    }
    
    .hero-scroll-indicator {
        display: none;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .feature-block {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .stats-bar {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 768px) {
    .main-nav {
        display: none;
        position: fixed;
        top: 76px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(251, 247, 236, 0.98);
        backdrop-filter: blur(20px);
        padding: 24px 32px;
        gap: 18px;
        border-bottom: 1px solid #E8DFCC;
        box-shadow: 0 16px 40px rgba(31, 40, 40, 0.1);
        z-index: 999;
        align-items: flex-start;
    }
    
    .main-nav.open {
        display: flex;
        animation: navSlideDown 0.3s ease;
    }
    
    @keyframes navSlideDown {
        from { opacity: 0; transform: translateY(-12px); }
        to { opacity: 1; transform: translateY(0); }
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .section {
        padding: 72px 0;
    }
    
    .feature-block {
        grid-template-columns: 1fr;
        gap: 36px;
    }
    
    .stats-bar {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
    
    .cta-banner {
        padding: 56px 24px;
    }
    
    .hero h1 {
        font-size: 2.4rem;
    }
    
    .hero-image img {
        min-height: 280px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
}

@media (max-width: 600px) {
    .cards-grid,
    .content-wall {
        grid-template-columns: 1fr;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-buttons .btn {
        width: 100%;
        justify-content: center;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .stat-item {
        padding: 24px 16px;
    }
    
    .stat-number {
        font-size: 1.8rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }
    
    .cta-banner {
        padding: 44px 20px;
    }
    
    .cta-banner::after {
        font-size: 8rem;
        bottom: -20px;
    }
    
    .header-inner {
        height: 64px;
        padding: 0 16px;
    }
    
    .main-nav {
        top: 64px;
    }
    
    .logo {
        font-size: 1.15rem;
    }
    
    .logo-icon {
        width: 34px;
        height: 34px;
        font-size: 0.9rem;
    }
    
    .logo::after {
        display: none;
    }
}

@media (max-width: 480px) {
    .stats-bar {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }
    
    .stat-item {
        padding: 20px 12px;
    }
    
    .section-desc {
        font-size: 0.95rem;
    }
    
    .section-label {
        letter-spacing: 0.12em;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 0.9rem;
    }
    
    .dialog-bubble {
        font-size: 0.85rem;
        padding: 10px 16px;
    }
}

/* ==========================================================================
   动画 — 入场和互动
   ========================================================================== */
@keyframes floatUp {
    0% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-8px) rotate(-1deg); }
    100% { transform: translateY(0) rotate(0deg); }
}

.float-element {
    animation: floatUp 4s ease-in-out infinite;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease both;
}

.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }

/* 文本发光微简化 */
.glow-accent {
    text-shadow: 0 2px 16px rgba(255, 90, 54, 0.2);
}

/* 分隔线 */
.divider-line {
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, #E8DFCC, transparent);
    margin: 32px 0;
    border: none;
}

/* 数字标记 */
.badge-number {
    font-weight: 900;
    font-size: 0.75rem;
    background: #FF5A36;
    color: #FBF7EC;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(255, 90, 54, 0.3);
}

.badge-number.teal {
    background: #0F7373;
    box-shadow: 0 2px 8px rgba(15, 115, 115, 0.3);
}