/* ============================
   爆料网 · 今日黑料
   "爆纸革命" — 编辑印刷×档案质感
   ============================ */

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

:root {
    --paper: #FBF5EE;
    --paper-deep: #F1EBE2;
    --ink: #221E1C;
    --red: #E63B2F;
    --red-soft: rgba(230, 59, 47, 0.08);
    --teal: #9AD5C8;
    --yellow: #F6C453;
    --white: #FFFFFF;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
    background-color: var(--paper);
    background-image: radial-gradient(rgba(34, 30, 28, 0.025) 1px, transparent 1px);
    background-size: 18px 18px;
    color: var(--ink);
    overflow-x: hidden;
    line-height: 1.6;
}

::selection {
    background: var(--red);
    color: #fff;
}

::-webkit-scrollbar {
    width: 12px;
    background: var(--paper);
}
::-webkit-scrollbar-thumb {
    background: var(--red);
    border: 3px solid var(--ink);
    border-radius: 0;
}

h1, h2, h3, h4 {
    line-height: 1.2;
    letter-spacing: -1px;
}

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

a {
    color: inherit;
}

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

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

.section:nth-child(even) {
    background: var(--paper-deep);
    background-image: 
        linear-gradient(rgba(34, 30, 28, 0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(34, 30, 28, 0.015) 1px, transparent 1px);
    background-size: 24px 24px;
}

/* ============================
   导航 · 顶部固定
   ============================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(251, 245, 238, 0.92);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 3px solid var(--ink);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 900;
    font-size: 1.18rem;
    text-decoration: none;
    color: var(--ink);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.logo-icon {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--red);
    color: #fff;
    border: 2px solid var(--ink);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    font-weight: 900;
    transform: rotate(-12deg);
    box-shadow: 2px 2px 0 var(--ink);
    flex-shrink: 0;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 26px;
    list-style: none;
}

.main-nav a {
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--ink);
    padding: 4px 2px;
    border-bottom: 3px solid transparent;
    letter-spacing: 0.5px;
    transition: border-color 0.25s ease, color 0.25s ease;
}

.main-nav a:hover {
    border-bottom-color: var(--red);
    color: var(--red);
}

.nav-cta {
    padding: 9px 22px !important;
    border-radius: 0;
    background: var(--red) !important;
    color: #fff !important;
    font-weight: 800 !important;
    letter-spacing: 1px;
    border: 2px solid var(--ink);
    box-shadow: 3px 3px 0 var(--ink);
    transition: all 0.2s ease;
}

.nav-cta:hover {
    background: var(--yellow) !important;
    color: var(--ink) !important;
    transform: translate(2px, 2px);
    box-shadow: 1px 1px 0 var(--ink);
    border-bottom-color: var(--ink) !important;
}

.menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 2px solid var(--ink);
    border-radius: 0;
    cursor: pointer;
    padding: 0;
    box-shadow: 2px 2px 0 rgba(34, 30, 28, 0.12);
    position: relative;
}

.menu-toggle::before {
    content: '☰';
    font-size: 1.4rem;
    font-weight: 900;
    color: var(--ink);
    line-height: 1;
}

/* ============================
   Hero
   ============================ */
.hero {
    min-height: 88vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 120px 0 80px;
    gap: 60px;
    flex-wrap: wrap;
    overflow: hidden;
}

/* 巨型背景「爆」字 */
.hero::before {
    content: '爆';
    position: absolute;
    left: -40px;
    bottom: -50px;
    font-size: clamp(12rem, 36vw, 26rem);
    font-weight: 900;
    line-height: 1;
    color: transparent;
    -webkit-text-stroke: 2px rgba(230, 59, 47, 0.14);
    pointer-events: none;
    user-select: none;
    z-index: 0;
}

/* 装饰虚线圆圈 */
.hero::after {
    content: '';
    position: absolute;
    top: 12%;
    right: 2%;
    width: 280px;
    height: 280px;
    border: 3px dashed var(--red);
    border-radius: 50%;
    opacity: 0.18;
    pointer-events: none;
    z-index: 0;
}

.hero-content {
    flex: 1 1 400px;
    max-width: 720px;
    position: relative;
    z-index: 2;
}

.hero-eyebrow {
    display: inline-block;
    font-size: 0.82rem;
    font-weight: 900;
    padding: 8px 16px;
    background: var(--yellow);
    color: var(--ink);
    border: 2px solid var(--ink);
    margin-bottom: 22px;
    letter-spacing: 3px;
    text-transform: uppercase;
    transform: rotate(-3deg);
    box-shadow: 3px 3px 0 var(--ink);
}

.hero h1 {
    font-size: clamp(2.8rem, 6vw, 4.8rem);
    font-weight: 900;
    line-height: 1.05;
    letter-spacing: -3px;
    margin-bottom: 24px;
    color: var(--ink);
}

.hero h1::after {
    content: '';
    display: block;
    width: 140px;
    height: 10px;
    background: var(--yellow);
    border: 2px solid var(--ink);
    transform: rotate(-2deg);
    margin-top: 16px;
    box-shadow: 3px 3px 0 rgba(34, 30, 28, 0.18);
}

.hero p {
    font-size: 1.15rem;
    opacity: 0.72;
    max-width: 560px;
    margin-bottom: 36px;
    line-height: 1.8;
}

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

.hero-image {
    flex: 1 1 360px;
    position: relative;
    z-index: 2;
    transform: rotate(1.5deg);
}

.hero-image::before {
    content: '';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%) rotate(-3deg);
    width: 130px;
    height: 24px;
    background: rgba(246, 196, 83, 0.75);
    border: 1px solid rgba(34, 30, 28, 0.18);
    z-index: 3;
}

.hero-image img {
    width: 100%;
    height: auto;
    border: 3px solid var(--ink);
    box-shadow: 12px 12px 0 var(--red);
    filter: grayscale(30%) contrast(1.05);
}

/* ============================
   按钮
   ============================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 30px;
    border-radius: 0;
    font-weight: 800;
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
    letter-spacing: 1px;
    font-size: 0.95rem;
    font-family: inherit;
}

.btn-primary {
    background: var(--red);
    color: #fff;
    box-shadow: 4px 4px 0 var(--ink);
}

.btn-primary:hover {
    background: var(--yellow);
    color: var(--ink);
    transform: translate(2px, 2px);
    box-shadow: 2px 2px 0 var(--ink);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--ink);
    color: var(--ink);
    box-shadow: 3px 3px 0 rgba(34, 30, 28, 0.12);
}

.btn-outline:hover {
    background: var(--ink);
    color: #fff;
    transform: translate(2px, 2px);
    box-shadow: none;
}

.btn:active {
    transform: translateY(3px);
}

/* ============================
   区块标签 / 标题
   ============================ */
.section-label {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 900;
    letter-spacing: 3px;
    padding: 7px 14px;
    background: var(--red);
    color: #fff;
    border: 2px solid var(--ink);
    box-shadow: 3px 3px 0 var(--ink);
    text-transform: uppercase;
    transform: rotate(-2deg);
    margin-bottom: 18px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    letter-spacing: -2px;
    margin-bottom: 16px;
    line-height: 1.1;
}

.section-desc {
    max-width: 600px;
    opacity: 0.68;
    margin-bottom: 44px;
    line-height: 1.8;
    font-size: 1.05rem;
}

/* ============================
   卡片网格
   ============================ */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
    gap: 28px;
}

.category-card {
    background: var(--white);
    border: 2px solid var(--ink);
    border-radius: 0;
    padding: 30px 26px;
    position: relative;
    box-shadow: 6px 6px 0 rgba(34, 30, 28, 0.12);
    transition: all 0.28s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.category-card::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    width: calc(100% + 4px);
    height: 5px;
    background: var(--red);
}

.category-card:nth-child(2n)::before {
    background: var(--teal);
}

.category-card:nth-child(3n)::before {
    background: var(--yellow);
}

.category-card:nth-child(2n) {
    transform: rotate(0.7deg);
}

.category-card:nth-child(3n) {
    transform: rotate(-0.6deg);
}

.category-card:hover {
    transform: translateY(-8px) rotate(0deg);
    box-shadow: 9px 9px 0 var(--red);
}

.card-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--yellow);
    border: 2px solid var(--ink);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
    font-size: 1.3rem;
    color: var(--ink);
}

.category-card:nth-child(2n) .card-icon {
    background: var(--teal);
}

.card-link {
    font-weight: 800;
    font-size: 0.85rem;
    text-decoration: none;
    color: var(--red);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 16px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: gap 0.2s ease;
}

.card-link::after {
    content: '→';
    transition: transform 0.2s ease;
}

.card-link:hover {
    color: var(--ink);
    gap: 8px;
}

.card-link:hover::after {
    transform: translateX(4px);
}

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

.feature-image {
    border-radius: 0;
    overflow: visible;
    position: relative;
}

.feature-image img {
    width: 100%;
    height: auto;
    border: 3px solid var(--ink);
    box-shadow: 12px 12px 0 var(--teal);
    transform: rotate(-1.5deg);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.feature-image:hover img {
    transform: rotate(0deg) translateY(-6px);
    box-shadow: 8px 8px 0 var(--yellow);
}

.feature-text h3 {
    font-size: 1.7rem;
    font-weight: 900;
    margin-bottom: 14px;
    letter-spacing: -1px;
}

.feature-text p {
    opacity: 0.72;
    line-height: 1.8;
    margin-bottom: 22px;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    padding: 12px 0;
    display: flex;
    align-items: center;
    gap: 14px;
    font-weight: 500;
    border-bottom: 1px dashed rgba(34, 30, 28, 0.18);
}

.feature-list li::before {
    content: '✓';
    font-weight: 900;
    color: #fff;
    background: var(--red);
    border: 2px solid var(--ink);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    flex-shrink: 0;
}

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

.stat-item {
    background: var(--white);
    padding: 34px 20px;
    border: 2px solid var(--ink);
    border-radius: 0;
    box-shadow: 5px 5px 0 rgba(34, 30, 28, 0.12);
    transition: all 0.25s ease;
    position: relative;
}

.stat-item:hover {
    transform: translate(-3px, -3px);
    box-shadow: 9px 9px 0 var(--yellow);
}

.stat-number {
    font-size: clamp(2.6rem, 5vw, 3.6rem);
    font-weight: 900;
    color: var(--red);
    line-height: 1;
    letter-spacing: -3px;
    margin-bottom: 6px;
    display: inline-block;
}

.stat-item:nth-child(odd) .stat-number {
    transform: rotate(-2deg);
}

.stat-item:nth-child(even) .stat-number {
    transform: rotate(2deg);
}

.stat-label {
    font-size: 0.84rem;
    opacity: 0.6;
    margin-top: 8px;
    letter-spacing: 2px;
    font-weight: 600;
    text-transform: uppercase;
}

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

.content-wall-item {
    border-radius: 0;
    overflow: hidden;
    border: 2px solid var(--ink);
    background: var(--white);
    box-shadow: 5px 5px 0 rgba(34, 30, 28, 0.1);
    transition: all 0.28s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.content-wall-item:hover {
    transform: translateY(-7px) rotate(-0.5deg);
    box-shadow: 8px 8px 0 var(--yellow);
}

.content-wall-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-bottom: 2px solid var(--ink);
}

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

.content-wall-body h3 {
    font-size: 1.1rem;
    font-weight: 800;
    margin-bottom: 8px;
    line-height: 1.4;
}

.content-wall-body p {
    font-size: 0.9rem;
    opacity: 0.68;
    line-height: 1.7;
}

/* ============================
   常见问题 FAQ
   ============================ */
.faq-list {
    max-width: 820px;
    margin: 0 auto;
}

.faq-item {
    border: 2px solid var(--ink);
    border-radius: 0;
    margin-bottom: 14px;
    overflow: hidden;
    cursor: pointer;
    background: var(--white);
    box-shadow: 4px 4px 0 rgba(34, 30, 28, 0.1);
    transition: all 0.25s ease;
}

.faq-item:hover {
    box-shadow: 6px 6px 0 var(--yellow);
    transform: translate(-2px, -2px);
}

.faq-item .faq-question {
    padding: 20px 24px;
    font-weight: 800;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    font-size: 1.05rem;
    background: var(--white);
}

.faq-item .faq-question::after {
    content: '+';
    font-size: 1.7rem;
    font-weight: 400;
    color: var(--red);
    line-height: 1;
    flex-shrink: 0;
    transition: transform 0.25s ease;
}

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

.faq-item .faq-answer {
    padding: 0 24px 22px;
    display: none;
    opacity: 0.72;
    line-height: 1.8;
    font-size: 0.98rem;
}

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

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

/* ============================
   CTA 横幅
   ============================ */
.cta-banner {
    padding: 68px 40px;
    text-align: center;
    border-radius: 0;
    color: #fff;
    background: var(--red);
    border: 3px solid var(--ink);
    box-shadow: 10px 10px 0 rgba(34, 30, 28, 0.15);
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(rgba(255, 255, 255, 0.16) 2px, transparent 2px);
    background-size: 18px 18px;
    pointer-events: none;
}

.cta-banner h2 {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 900;
    color: #fff;
    letter-spacing: -2px;
    margin-bottom: 14px;
    position: relative;
}

.cta-banner p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.05rem;
    margin-bottom: 28px;
    position: relative;
}

.cta-banner .btn-primary {
    background: #fff;
    color: var(--red);
    box-shadow: 4px 4px 0 var(--ink);
    position: relative;
}

.cta-banner .btn-primary:hover {
    background: var(--yellow);
    color: var(--ink);
}

/* ============================
   页脚
   ============================ */
.site-footer {
    padding: 64px 0 28px;
    background: #fff;
    border-top: 3px solid var(--ink);
    color: var(--ink);
    background-image: radial-gradient(rgba(34, 30, 28, 0.02) 1px, transparent 1px);
    background-size: 16px 16px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
}

.footer-brand {
    font-size: 0.95rem;
    opacity: 0.8;
    line-height: 1.8;
}

.footer-col h4 {
    font-size: 0.86rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 16px;
    color: var(--red);
}

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

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul a {
    color: var(--ink);
    text-decoration: none;
    font-size: 0.9rem;
    opacity: 0.72;
    transition: opacity 0.2s ease, padding-left 0.2s ease;
}

.footer-col ul a:hover {
    opacity: 1;
    padding-left: 4px;
    color: var(--red);
}

.footer-bottom {
    border-top: 1px solid rgba(34, 30, 28, 0.15);
    margin-top: 44px;
    padding-top: 20px;
    text-align: center;
    font-size: 0.82rem;
    opacity: 0.65;
}

/* ============================
   工具类
   ============================ */
.text-accent {
    color: var(--red);
    font-weight: 900;
}

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

.seo-description {
    max-width: 600px;
    margin: 0 auto 48px;
    opacity: 0.68;
    line-height: 1.8;
}

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

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

/* ============================
   响应式
   ============================ */
@media (max-width: 1024px) {
    .hero {
        gap: 40px;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .feature-block {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .main-nav {
        display: none;
    }

    .menu-toggle {
        display: flex;
        z-index: 1001;
    }

    .main-nav.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: var(--paper);
        border-bottom: 3px solid var(--ink);
        padding: 24px;
        gap: 6px;
        box-shadow: 0 16px 32px rgba(34, 30, 28, 0.18);
        align-items: stretch;
    }

    .main-nav.open a {
        display: block;
        padding: 12px 0;
        border-bottom: 1px solid rgba(34, 30, 28, 0.1);
        font-size: 1.05rem;
    }

    .main-nav.open .nav-cta {
        text-align: center;
        margin-top: 8px;
        border-bottom: 2px solid var(--ink);
    }

    .hero {
        min-height: 0;
        padding: 110px 0 60px;
        flex-direction: column;
        gap: 40px;
    }

    .hero-content {
        flex: none;
        max-width: 100%;
    }

    .hero-image {
        flex: none;
        width: 100%;
        max-width: 480px;
        margin: 0 auto;
    }

    .hero h1 {
        font-size: 2.6rem;
    }

    .hero::before {
        font-size: 13rem;
        bottom: -20px;
        left: -30px;
    }

    .hero::after {
        width: 160px;
        height: 160px;
    }
}

@media (max-width: 480px) {
    .cards-grid,
    .content-wall,
    .stats-bar {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .hero-buttons .btn {
        width: 100%;
        justify-content: center;
    }

    .section {
        padding: 60px 0;
    }

    .cta-banner {
        padding: 52px 24px;
    }

    .stat-number {
        font-size: 2.4rem;
    }
}