/* ==================================================
   黑料 · 淬火纸墨设计系统
   Fire & Paper — Forging a Brand
   ================================================== */

*, *::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-color:#FBF6EE;
    background-image:
        radial-gradient(circle at 25px 25px, rgba(45,40,36,0.025) 1px, transparent 1px),
        linear-gradient(135deg, #FBF6EE 0%, #F4EDE1 100%);
    background-size:50px 50px, 100% 100%;
    color:#2D2824;
    line-height:1.6;
    transition:background 0.3s ease;
}

body::before {
    content:'';
    position:fixed;
    top:0;
    left:0;
    width:100%;
    height:100%;
    background:
        radial-gradient(ellipse at 15% -10%, rgba(232,80,58,0.05) 0%, transparent 60%),
        radial-gradient(ellipse at 85% 100%, rgba(45,107,110,0.04) 0%, transparent 50%);
    pointer-events:none;
    z-index:0;
}

/* ==================================================
   核心布局
   ================================================== */
.container {
    max-width:1200px;
    margin:0 auto;
    padding:0 24px;
    position:relative;
    z-index:1;
}

.section {
    padding:80px 0;
    position:relative;
    overflow:hidden;
}

.section:nth-child(even) {
    background:#F2E8DA;
    box-shadow:inset 0 1px 0 rgba(232,80,58,0.04);
}

.section::before {
    content:'';
    position:absolute;
    top:0;
    right:-100px;
    width:300px;
    height:300px;
    background:radial-gradient(circle, rgba(232,80,58,0.03), transparent 70%);
    border-radius:50%;
    pointer-events:none;
}

/* ==================================================
   导航
   ================================================== */
.site-header {
    position:fixed;
    top:0;
    left:0;
    width:100%;
    z-index:1000;
    background:rgba(251,246,238,0.92);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid rgba(232,80,58,0.12);
    box-shadow:0 1px 20px rgba(45,40,36,0.04);
}

.site-header::after {
    content:'';
    position:absolute;
    bottom:-1px;
    left:0;
    width:100%;
    height:2px;
    background:linear-gradient(90deg, transparent, rgba(232,80,58,0.4), transparent);
    opacity:0.6;
}

.header-inner {
    display:flex;
    align-items:center;
    justify-content:space-between;
    height:68px;
    max-width:1200px;
    margin:0 auto;
    padding:0 24px;
}

.logo {
    display:flex;
    align-items:center;
    gap:10px;
    font-weight:800;
    font-size:1.3rem;
    text-decoration:none;
    color:#2D2824;
    letter-spacing:-0.5px;
}

.logo-icon {
    width:38px;
    height:38px;
    border-radius:10px;
    background:linear-gradient(135deg, #E8503A, #C99A4A);
    color:#FFF;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:0.85rem;
    font-weight:900;
    letter-spacing:-0.5px;
    box-shadow:0 2px 12px rgba(232,80,58,0.35);
    animation:logoGlow 3s ease-in-out infinite alternate;
}

@keyframes logoGlow {
    0% { box-shadow:0 2px 10px rgba(232,80,58,0.3); }
    100% { box-shadow:0 4px 20px rgba(232,80,58,0.5); }
}

.main-nav {
    display:flex;
    align-items:center;
    gap:28px;
    list-style:none;
}

.main-nav a {
    text-decoration:none;
    font-size:0.9rem;
    font-weight:500;
    color:#4A403A;
    position:relative;
    padding:4px 0;
    transition:color 0.25s;
}

.main-nav a:hover {
    color:#E8503A;
}

.main-nav a::after {
    content:'';
    position:absolute;
    bottom:-2px;
    left:0;
    width:0;
    height:2px;
    background:linear-gradient(90deg, #E8503A, transparent);
    transition:width 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    border-radius:2px;
}

.main-nav a:hover::after {
    width:100%;
}

.nav-cta {
    padding:8px 22px;
    border-radius:50px;
    background:linear-gradient(135deg, #E8503A 0%, #D43C28 100%);
    color:#FFF!important;
    font-weight:600;
    box-shadow:0 2px 12px rgba(232,80,58,0.3);
    transition:all 0.3s;
}

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

.nav-cta:hover {
    transform:translateY(-2px);
    box-shadow:0 5px 18px rgba(232,80,58,0.4);
    color:#FFF!important;
}

.menu-toggle {
    display:none;
    flex-direction:column;
    gap:6px;
    background:none;
    border:none;
    cursor:pointer;
    padding:8px;
    z-index:1001;
}

.menu-toggle span {
    width:26px;
    height:2px;
    background:#2D2824;
    border-radius:2px;
    transition:all 0.3s;
}

/* ==================================================
   Hero
   ================================================== */
.hero {
    min-height:70vh;
    display:flex;
    align-items:center;
    padding-top:120px;
    position:relative;
    overflow:hidden;
}

.hero::before {
    content:'';
    position:absolute;
    top:-300px;
    right:-200px;
    width:800px;
    height:800px;
    background:radial-gradient(circle, rgba(232,80,58,0.1) 0%, transparent 70%);
    border-radius:50%;
    animation:heroFire 8s ease-in-out infinite alternate;
}

@keyframes heroFire {
    0% { transform:scale(0.9) translateY(0); opacity:0.7; }
    100% { transform:scale(1.05) translateY(-20px); opacity:1; }
}

.hero::after {
    content:'';
    position:absolute;
    bottom:30px;
    left:-100px;
    width:400px;
    height:400px;
    background:radial-gradient(circle, rgba(45,107,110,0.06) 0%, transparent 70%);
    border-radius:50%;
}

.hero-content {
    max-width:720px;
    position:relative;
    z-index:2;
}

.hero-eyebrow {
    display:inline-block;
    font-size:0.8rem;
    font-weight:700;
    padding:5px 18px;
    border-radius:50px;
    background:rgba(232,80,58,0.08);
    color:#E8503A;
    border:1px solid rgba(232,80,58,0.2);
    margin-bottom:24px;
    letter-spacing:2px;
    text-transform:uppercase;
    position:relative;
}

.hero-eyebrow::before,
.hero-eyebrow::after {
    content:'✦';
    margin:0 6px;
    color:#C99A4A;
    font-size:0.7rem;
}

.hero h1 {
    font-size:3.4rem;
    line-height:1.1;
    margin-bottom:24px;
    font-weight:900;
    color:#2D2824;
    letter-spacing:-1.5px;
    position:relative;
}

.hero h1 .text-accent {
    background:linear-gradient(135deg, #E8503A 0%, #D43C28 40%, #C99A4A 100%);
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
    background-clip:text;
    position:relative;
    display:inline-block;
}

.hero h1 .text-accent::after {
    content:'';
    position:absolute;
    bottom:-6px;
    left:0;
    width:80px;
    height:4px;
    background:linear-gradient(90deg, #E8503A, #C99A4A, transparent);
    border-radius:2px;
}

.hero p {
    font-size:1.15rem;
    color:#4A403A;
    max-width:560px;
    margin-bottom:36px;
    line-height:1.75;
    font-weight:400;
}

.hero-buttons {
    display:flex;
    gap:16px;
    flex-wrap:wrap;
}

.hero-image {
    border-radius:20px;
    overflow:hidden;
    box-shadow:
        0 16px 44px rgba(45,40,36,0.12),
        0 0 0 1px rgba(232,80,58,0.06);
    position:relative;
    transform:rotate(1deg);
    transition:transform 0.4s ease;
}

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

.hero-image img {
    width:100%;
    height:auto;
    display:block;
}

/* ==================================================
   按钮
   ================================================== */
.btn {
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:13px 30px;
    border-radius:50px;
    font-weight:700;
    cursor:pointer;
    border:none;
    text-decoration:none;
    transition:all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    font-size:0.95rem;
    letter-spacing:0.3px;
}

.btn-primary {
    background:linear-gradient(135deg, #E8503A 0%, #D43C28 100%);
    color:#FFF;
    box-shadow:0 4px 16px rgba(232,80,58,0.3);
}

.btn-primary:hover {
    transform:translateY(-2px);
    box-shadow:0 8px 26px rgba(232,80,58,0.4);
}

.btn-primary:active {
    transform:translateY(0);
    box-shadow:0 2px 10px rgba(232,80,58,0.3);
}

.btn-outline {
    background:transparent;
    border:1.5px solid #C99A4A;
    color:#8A6A1F;
    box-shadow:inset 0 0 0 0 rgba(201,154,74,0.2);
}

.btn-outline:hover {
    background:rgba(201,154,74,0.1);
    border-color:#E8503A;
    color:#E8503A;
    transform:translateY(-2px);
    box-shadow:0 4px 16px rgba(232,80,58,0.08);
}

/* ==================================================
   标签/标题
   ================================================== */
.section-label {
    display:inline-block;
    font-size:0.78rem;
    font-weight:800;
    letter-spacing:3px;
    margin-bottom:16px;
    color:#E8503A;
    text-transform:uppercase;
    position:relative;
    padding-bottom:6px;
}

.section-label::before {
    content:'///';
    margin-right:10px;
    color:#C99A4A;
    letter-spacing:2px;
    font-weight:400;
}

.section-label::after {
    content:'';
    position:absolute;
    bottom:0;
    left:0;
    width:40px;
    height:2px;
    background:linear-gradient(90deg, #E8503A, #C99A4A, transparent);
    border-radius:2px;
}

.section-title {
    font-size:2.6rem;
    margin-bottom:16px;
    font-weight:900;
    color:#2D2824;
    letter-spacing:-0.8px;
    line-height:1.2;
}

.section-desc {
    max-width:600px;
    color:#6B5B52;
    margin-bottom:44px;
    line-height:1.75;
    font-size:1.05rem;
}

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

.category-card {
    border-radius:18px;
    padding:32px 30px;
    background:#FFFDF9;
    border:1px solid rgba(232,80,58,0.12);
    transition:all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position:relative;
    overflow:hidden;
}

.category-card::before {
    content:'';
    position:absolute;
    top:0;
    left:0;
    width:100%;
    height:3px;
    background:linear-gradient(90deg, #E8503A, #C99A4A);
    transform:scaleX(0);
    transform-origin:left;
    transition:transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.category-card::after {
    content:'';
    position:absolute;
    bottom:-50px;
    right:-50px;
    width:100px;
    height:100px;
    background:radial-gradient(circle, rgba(232,80,58,0.06) 0%, transparent 70%);
    border-radius:50%;
    transition:all 0.4s;
}

.category-card:hover {
    transform:translateY(-5px);
    box-shadow:
        0 10px 36px rgba(232,80,58,0.12),
        0 0 0 1px rgba(232,80,58,0.08);
    border-color:rgba(232,80,58,0.2);
}

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

.category-card:hover::after {
    transform:scale(1.5);
}

.card-icon {
    width:54px;
    height:54px;
    border-radius:15px;
    background:linear-gradient(135deg, rgba(232,80,58,0.1), rgba(201,154,74,0.08));
    display:flex;
    align-items:center;
    justify-content:center;
    margin-bottom:20px;
    font-size:1.4rem;
    border:1px solid rgba(232,80,58,0.12);
    transition:all 0.3s;
}

.category-card:hover .card-icon {
    background:linear-gradient(135deg, rgba(232,80,58,0.15), rgba(201,154,74,0.12));
    transform:scale(1.05);
}

.card-link {
    font-weight:700;
    font-size:0.85rem;
    text-decoration:none;
    color:#E8503A;
    display:inline-flex;
    align-items:center;
    gap:6px;
    transition:gap 0.25s;
}

.card-link::after {
    content:'→';
    transition:transform 0.25s;
}

.card-link:hover {
    gap:10px;
}

.card-link:hover::after {
    transform:translateX(2px);
}

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

.feature-image {
    border-radius:20px;
    overflow:hidden;
    box-shadow:
        0 14px 36px rgba(45,40,36,0.1),
        0 0 0 1px rgba(45,107,110,0.1);
    position:relative;
    transform:rotate(-1deg);
    transition:transform 0.4s ease, box-shadow 0.4s ease;
}

.feature-image:hover {
    transform:rotate(0deg);
    box-shadow:
        0 18px 44px rgba(45,40,36,0.14),
        0 0 0 1px rgba(45,107,110,0.15);
}

.feature-image img {
    width:100%;
    height:auto;
    display:block;
}

.feature-text {
    position:relative;
    padding-left:20px;
}

.feature-text::before {
    content:'';
    position:absolute;
    left:0;
    top:0;
    width:3px;
    height:100%;
    background:linear-gradient(180deg, #E8503A, #C99A4A, transparent);
    border-radius:3px;
}

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

.feature-list li {
    padding:8px 0;
    display:flex;
    align-items:center;
    gap:10px;
    font-size:0.98rem;
    color:#4A403A;
}

.feature-list li::before {
    content:'✦';
    font-weight:700;
    color:#E8503A;
    font-size:0.8rem;
}

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

.stat-item {
    padding:28px 20px;
    border-radius:18px;
    background:#FFFDF9;
    border:1px solid rgba(232,80,58,0.1);
    transition:all 0.3s;
    position:relative;
    overflow:hidden;
}

.stat-item::before {
    content:'';
    position:absolute;
    top:0;
    left:50%;
    transform:translateX(-50%);
    width:40px;
    height:2px;
    background:linear-gradient(90deg, transparent, #E8503A, transparent);
    opacity:0;
    transition:opacity 0.3s;
}

.stat-item:hover {
    transform:translateY(-3px);
    box-shadow:0 8px 24px rgba(232,80,58,0.08);
}

.stat-item:hover::before {
    opacity:1;
}

.stat-number {
    font-size:2.6rem;
    font-weight:900;
    color:#E8503A;
    line-height:1.2;
    letter-spacing:-1px;
}

.stat-number::after {
    content:'+';
    font-size:1.4rem;
    opacity:0.5;
    margin-left:2px;
}

.stat-label {
    font-size:0.85rem;
    color:#8A7A72;
    margin-top:8px;
    letter-spacing:1px;
    font-weight:500;
}

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

.content-wall-item {
    border-radius:18px;
    overflow:hidden;
    background:#FFFDF9;
    border:1px solid rgba(232,80,58,0.1);
    transition:all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position:relative;
}

.content-wall-item::before {
    content:'';
    position:absolute;
    top:0;
    left:0;
    width:100%;
    height:100%;
    background:linear-gradient(180deg, transparent 60%, rgba(232,80,58,0.05));
    z-index:1;
    pointer-events:none;
    opacity:0;
    transition:opacity 0.3s;
}

.content-wall-item:hover {
    transform:translateY(-4px);
    box-shadow:
        0 10px 30px rgba(232,80,58,0.1),
        0 0 0 1px rgba(232,80,58,0.12);
    border-color:rgba(232,80,58,0.2);
}

.content-wall-item:hover::before {
    opacity:1;
}

.content-wall-item img {
    width:100%;
    height:200px;
    object-fit:cover;
    transition:transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.content-wall-item:hover img {
    transform:scale(1.04);
}

.content-wall-body {
    padding:24px 22px;
}

.content-wall-body h3 {
    font-size:1.1rem;
    font-weight:700;
    margin-bottom:8px;
    color:#2D2824;
}

.content-wall-body p {
    font-size:0.9rem;
    color:#8A7A72;
    line-height:1.6;
}

/* ==================================================
   FAQ
   ================================================== */
.faq-list {
    max-width:800px;
    margin:0 auto;
}

.faq-item {
    border:1px solid rgba(232,80,58,0.1);
    border-radius:16px;
    margin-bottom:12px;
    overflow:hidden;
    cursor:pointer;
    background:#FFFDF9;
    transition:all 0.3s;
}

.faq-item:hover {
    border-color:rgba(232,80,58,0.25);
    box-shadow:0 4px 16px rgba(232,80,58,0.06);
}

.faq-item .faq-question {
    padding:20px 22px;
    font-weight:600;
    font-size:1rem;
    display:flex;
    justify-content:space-between;
    align-items:center;
    color:#2D2824;
    position:relative;
}

.faq-item .faq-question::after {
    content:'+';
    font-size:1.4rem;
    color:#E8503A;
    font-weight:400;
    transition:transform 0.3s;
    margin-left:16px;
}

.faq-item .faq-answer {
    padding:0 22px 20px;
    display:none;
    color:#6B5B52;
    line-height:1.7;
    font-size:0.95rem;
}

.faq-item.open .faq-question::after {
    transform:rotate(45deg);
}

.faq-item.open .faq-answer {
    display:block;
    animation:faqFade 0.3s ease;
}

@keyframes faqFade {
    from { opacity:0; transform:translateY(-4px); }
    to { opacity:1; transform:translateY(0); }
}

/* ==================================================
   CTA横幅
   ================================================== */
.cta-banner {
    padding:64px 48px;
    text-align:center;
    border-radius:24px;
    color:#FFF;
    background:linear-gradient(135deg, #E8503A 0%, #D43C28 40%, #C99A4A 100%);
    box-shadow:
        0 16px 44px rgba(232,80,58,0.3),
        inset 0 1px 0 rgba(255,255,255,0.2);
    position:relative;
    overflow:hidden;
}

.cta-banner::before {
    content:'';
    position:absolute;
    top:-100px;
    left:-100px;
    width:300px;
    height:300px;
    background:rgba(255,255,255,0.08);
    border-radius:50%;
    animation:ctaFloat 6s ease-in-out infinite alternate;
}

.cta-banner::after {
    content:'';
    position:absolute;
    bottom:-80px;
    right:-80px;
    width:200px;
    height:200px;
    background:rgba(255,255,255,0.05);
    border-radius:50%;
    animation:ctaFloat 8s ease-in-out infinite alternate-reverse;
}

@keyframes ctaFloat {
    0% { transform:scale(1) translateY(0); }
    100% { transform:scale(1.1) translateY(-15px); }
}

.cta-banner h2 {
    color:#FFF;
    font-size:2.2rem;
    font-weight:900;
    margin-bottom:12px;
    letter-spacing:-0.5px;
    position:relative;
    z-index:1;
}

.cta-banner .btn-primary {
    background:#FFF;
    color:#E8503A;
    box-shadow:0 4px 16px rgba(0,0,0,0.1);
    position:relative;
    z-index:1;
}

.cta-banner .btn-primary:hover {
    box-shadow:0 8px 24px rgba(0,0,0,0.15);
    transform:translateY(-2px);
}

/* ==================================================
   页脚
   ================================================== */
.site-footer {
    padding:64px 0 28px;
    background:#F0E6D8;
    border-top:1px solid rgba(232,80,58,0.1);
    position:relative;
}

.site-footer::before {
    content:'';
    position:absolute;
    top:-1px;
    left:0;
    width:100%;
    height:3px;
    background:linear-gradient(90deg, #E8503A, #C99A4A, #2D6B6E, transparent);
    opacity:0.4;
}

.footer-grid {
    display:grid;
    grid-template-columns:2fr 1fr 1fr 1fr;
    gap:44px;
}

.footer-brand {
    padding-right:20px;
}

.footer-brand p {
    color:#6B5B52;
    font-size:0.92rem;
    line-height:1.75;
    margin-top:12px;
}

.footer-col h4 {
    font-size:0.95rem;
    font-weight:700;
    color:#2D2824;
    margin-bottom:16px;
    position:relative;
    padding-bottom:8px;
}

.footer-col h4::after {
    content:'';
    position:absolute;
    bottom:0;
    left:0;
    width:20px;
    height:2px;
    background:#E8503A;
    border-radius:2px;
}

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

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

.footer-col a {
    text-decoration:none;
    color:#6B5B52;
    font-size:0.88rem;
    transition:color 0.2s, padding-left 0.2s;
    padding-left:0;
}

.footer-col a:hover {
    color:#E8503A;
    padding-left:4px;
}

.footer-bottom {
    border-top:1px solid rgba(232,80,58,0.15);
    margin-top:48px;
    padding-top:24px;
    text-align:center;
    font-size:0.85rem;
    color:#8A7A72;
}

/* ==================================================
   工具类
   ================================================== */
.text-accent {
    background:linear-gradient(135deg, #E8503A, #C99A4A);
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
    background-clip:text;
}

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

.seo-description {
    max-width:620px;
    margin:0 auto 48px;
    color:#6B5B52;
    line-height:1.7;
    text-align:center;
    padding:0 20px;
}

.seo-description::first-letter {
    font-size:1.6em;
    color:#E8503A;
    font-weight:800;
}

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

/* ==================================================
   响应式
   ================================================== */
@media (max-width: 992px) {
    .hero h1 {
        font-size:2.6rem;
    }
    
    .hero {
        padding-top:100px;
    }
    
    .section-title {
        font-size:2rem;
    }
    
    .feature-block {
        gap:40px;
    }
    
    .cta-banner {
        padding:48px 28px;
    }
    
    .cta-banner h2 {
        font-size:1.8rem;
    }
}

@media (max-width: 768px) {
    .header-inner {
        height:64px;
    }
    
    .main-nav {
        display:none;
        position:absolute;
        top:64px;
        left:0;
        width:100%;
        background:rgba(251,246,238,0.98);
        backdrop-filter:blur(20px);
        padding:24px;
        flex-direction:column;
        gap:18px;
        border-bottom:1px solid rgba(232,80,58,0.12);
        box-shadow:0 12px 30px rgba(45,40,36,0.08);
    }
    
    .main-nav.open {
        display:flex;
        animation:menuFade 0.3s ease;
    }
    
    @keyframes menuFade {
        from { opacity:0; transform:translateY(-10px); }
        to { opacity:1; transform:translateY(0); }
    }
    
    .main-nav a {
        font-size:0.95rem;
        padding:6px 0;
        width:100%;
    }
    
    .main-nav a::after {
        display:none;
    }
    
    .nav-cta {
        text-align:center;
        padding:10px 24px;
        margin-top:8px;
    }
    
    .menu-toggle {
        display:flex;
    }
    
    .hero {
        min-height:auto;
        padding-top:110px;
        padding-bottom:60px;
    }
    
    .hero h1 {
        font-size:2.2rem;
    }
    
    .hero p {
        font-size:1rem;
    }
    
    .hero-buttons {
        flex-direction:column;
        width:100%;
        max-width:300px;
    }
    
    .hero-buttons .btn {
        width:100%;
        justify-content:center;
    }
    
    .container {
        padding:0 20px;
    }
    
    .section {
        padding:60px 0;
    }
    
    .feature-block {
        grid-template-columns:1fr;
        gap:36px;
    }
    
    .feature-text {
        padding-left:0;
        padding-top:20px;
    }
    
    .feature-text::before {
        left:0;
        top:0;
        width:40px;
        height:3px;
        background:linear-gradient(90deg, #E8503A, #C99A4A, transparent);
    }
    
    .stats-bar {
        grid-template-columns:repeat(2, 1fr);
        gap:20px;
    }
    
    .stat-number {
        font-size:2rem;
    }
    
    .footer-grid {
        grid-template-columns:1fr 1fr;
        gap:36px;
    }
    
    .footer-brand {
        grid-column:1 / -1;
        padding-right:0;
    }
    
    .cards-grid {
        gap:20px;
    }
    
    .content-wall {
        gap:20px;
    }
    
    .section-desc {
        font-size:0.98rem;
    }
}

@media (max-width: 480px) {
    .cards-grid,
    .content-wall,
    .stats-bar {
        grid-template-columns:1fr;
    }
    
    .footer-grid {
        grid-template-columns:1fr;
        gap:28px;
    }
    
    .hero-buttons {
        flex-direction:column;
    }
    
    .hero h1 {
        font-size:1.9rem;
    }
    
    .hero-eyebrow {
        font-size:0.72rem;
        padding:4px 14px;
    }
    
    .section-title {
        font-size:1.7rem;
    }
    
    .section-label {
        font-size:0.7rem;
        letter-spacing:2px;
    }
    
    .stat-item {
        padding:22px 16px;
    }
    
    .stat-number {
        font-size:1.8rem;
    }
    
    .cta-banner {
        padding:40px 20px;
        border-radius:18px;
    }
    
    .cta-banner h2 {
        font-size:1.5rem;
    }
    
    .cta-banner .btn-primary {
        width:100%;
        justify-content:center;
    }
    
    .btn {
        padding:12px 24px;
        font-size:0.9rem;
    }
    
    .card-icon {
        width:46px;
        height:46px;
        font-size:1.2rem;
    }
    
    .category-card {
        padding:24px;
    }
    
    .content-wall-body {
        padding:18px 16px;
    }
    
    .feature-block {
        gap:28px;
    }
}

/* ==================================================
   微交互 & 增强
   ================================================== */
::selection {
    background:rgba(232,80,58,0.2);
    color:#D43C28;
}

a {
    -webkit-tap-highlight-color: transparent;
}

img {
    user-select:none;
}

/* 卡片上升的通用悬停感 */
.category-card,
.content-wall-item,
.stat-item,
.faq-item {
    transition:all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* 按钮点击反馈 */
.btn:active {
    transform:scale(0.97);
}

/* 滚动条 */
::-webkit-scrollbar {
    width:10px;
    background:#F4EDE1;
}

::-webkit-scrollbar-thumb {
    background:linear-gradient(180deg, #E8503A, #C99A4A);
    border-radius:5px;
}

::-webkit-scrollbar-track {
    background:#F4EDE1;
}

/* 保持焦点可访问 */
a:focus-visible,
button:focus-visible {
    outline:2px solid #E8503A;
    outline-offset:2px;
    border-radius:4px;
}

/* 平滑滚动 */
html {
    scroll-behavior:smooth;
    scroll-padding-top:120px;
}