/* ===================================================================
   香港胭脂药业有限公司 - 东方胭脂风格样式表
   主色调：中国红 #C41E3A #8B0000 #DC143C + 金色 #D4AF37 #FFD700 + 墨黑 #1a1a1a
   =================================================================== */

/* ============ CSS 变量定义 ============ */
:root {
    --red-deep: #8B0000;        /* 暗红 */
    --red-china: #C41E3A;       /* 中国红 */
    --red-bright: #DC143C;      /* 胭脂红 */
    --gold-deep: #D4AF37;       /* 古金 */
    --gold-bright: #FFD700;     /* 亮金 */
    --ink-black: #1a1a1a;       /* 墨黑 */
    --ink-soft: #2b2522;        /* 墨褐 */
    --paper: #f5ecd9;           /* 宣纸色 */
    --paper-dark: #ead9b8;      /* 深宣纸 */
    --cream: #fbf5e8;           /* 米白 */
    --text-body: #3a2e28;       /* 正文褐 */
    --shadow-red: rgba(139, 0, 0, 0.25);
    --shadow-gold: rgba(212, 175, 55, 0.35);

    --font-title: 'ZCOOL XiaoWei', 'Noto Serif SC', serif;
    --font-body: 'Noto Serif SC', 'Songti SC', serif;
    --font-brush: 'Ma Shan Zheng', cursive;

    --max-width: 1200px;
    --radius: 4px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    color: var(--text-body);
    background-color: var(--paper);
    /* 宣纸纹理：多层渐变模拟纸纹 + 金色祥云暗纹 */
    background-image:
        radial-gradient(circle at 20% 30%, rgba(212, 175, 55, 0.08) 0%, transparent 35%),
        radial-gradient(circle at 80% 70%, rgba(196, 30, 58, 0.06) 0%, transparent 40%),
        repeating-linear-gradient(45deg, rgba(139, 0, 0, 0.015) 0 2px, transparent 2px 6px),
        repeating-linear-gradient(-45deg, rgba(212, 175, 55, 0.02) 0 2px, transparent 2px 8px),
        linear-gradient(180deg, #f7eed9 0%, #f3e6cc 50%, #f5ecd9 100%);
    line-height: 1.8;
    overflow-x: hidden;
    position: relative;
}

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

a {
    color: var(--red-deep);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--gold-deep);
}

ul {
    list-style: none;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.25rem;
}

/* ============ 1. 导航栏 ============ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: linear-gradient(180deg, rgba(26, 26, 26, 0.96) 0%, rgba(43, 37, 34, 0.92) 100%);
    border-bottom: 2px solid var(--gold-deep);
    box-shadow: 0 4px 20px var(--shadow-red);
    transition: all 0.4s ease;
}

.site-header.scrolled {
    background: linear-gradient(180deg, rgba(139, 0, 0, 0.97) 0%, rgba(26, 26, 26, 0.95) 100%);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.4);
}

.header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0.6rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo 区 */
.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--paper);
}

.logo-seal {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--red-china), var(--red-deep));
    color: var(--gold-bright);
    font-family: var(--font-title);
    font-size: 1.6rem;
    border: 2px solid var(--gold-deep);
    border-radius: 50%;
    box-shadow: 0 0 12px var(--shadow-gold), inset 0 0 8px rgba(0, 0, 0, 0.4);
    position: relative;
    flex-shrink: 0;
}

.logo-seal::after {
    content: '';
    position: absolute;
    inset: 3px;
    border: 1px solid rgba(255, 215, 0, 0.5);
    border-radius: 50%;
    pointer-events: none;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-cn {
    font-family: var(--font-title);
    font-size: 1.4rem;
    color: var(--gold-bright);
    letter-spacing: 0.15em;
}

.logo-en {
    font-size: 0.65rem;
    color: var(--paper-dark);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

/* 主导航 */
.main-nav ul {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.main-nav a {
    display: block;
    color: var(--paper);
    padding: 0.5rem 0.9rem;
    font-size: 0.98rem;
    letter-spacing: 0.1em;
    position: relative;
    transition: all 0.3s ease;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    width: 0;
    height: 1px;
    background: var(--gold-bright);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.main-nav a:hover {
    color: var(--gold-bright);
}

.main-nav a:hover::after {
    width: 60%;
}

.main-nav .nav-cta {
    background: linear-gradient(135deg, var(--red-china), var(--red-deep));
    border: 1px solid var(--gold-deep);
    border-radius: var(--radius);
    color: var(--gold-bright);
}

.main-nav .nav-cta:hover {
    background: linear-gradient(135deg, var(--gold-deep), var(--red-china));
    color: var(--ink-black);
}

/* 汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 32px;
    height: 24px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--gold-bright);
    transition: all 0.3s ease;
    border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
    transform: translateY(11px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: translateY(-11px) rotate(-45deg);
}

/* ============ 2. 轮播图（卷轴展开式） ============ */
.hero {
    margin-top: 0;
    height: 100vh;
    min-height: 600px;
    position: relative;
    overflow: hidden;
}

.carousel {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: var(--ink-black);
}

.carousel-track {
    position: relative;
    width: 100%;
    height: 100%;
}

.carousel-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transform: scaleX(0);
    transform-origin: left center;
    transition: opacity 0.8s ease, transform 1s cubic-bezier(0.77, 0, 0.175, 1);
    visibility: hidden;
}

/* 卷轴展开效果：从左向右展开 */
.carousel-slide.active {
    opacity: 1;
    transform: scaleX(1);
    visibility: visible;
    z-index: 2;
}

.carousel-slide.prev-out {
    opacity: 0;
    transform: scaleX(0);
    transform-origin: right center;
    visibility: visible;
}

.carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.carousel-slide::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(26, 26, 26, 0.3) 0%, rgba(139, 0, 0, 0.5) 100%);
}

.slide-caption {
    position: absolute;
    bottom: 18%;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--paper);
    z-index: 3;
    width: 90%;
    max-width: 800px;
    padding: 1.5rem;
}

.slide-title {
    font-family: var(--font-title);
    font-size: clamp(2rem, 5vw, 3.5rem);
    color: var(--gold-bright);
    letter-spacing: 0.2em;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.8), 0 0 20px var(--shadow-gold);
    margin-bottom: 0.75rem;
}

.slide-sub {
    font-size: clamp(0.95rem, 2vw, 1.2rem);
    color: var(--paper-dark);
    letter-spacing: 0.15em;
    text-shadow: 0 1px 6px rgba(0, 0, 0, 0.8);
}

/* 卷轴上下杆 */
.scroll-rod {
    position: absolute;
    left: 0;
    width: 100%;
    height: 14px;
    background: linear-gradient(180deg, var(--gold-deep) 0%, #8b6914 50%, var(--gold-deep) 100%);
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
    z-index: 5;
}

.scroll-rod::before,
.scroll-rod::after {
    content: '';
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 24px;
    background: radial-gradient(circle, var(--red-china) 0%, var(--red-deep) 70%);
    border: 2px solid var(--gold-bright);
    border-radius: 50%;
}

.scroll-rod::before { left: -12px; }
.scroll-rod::after { right: -12px; }

.scroll-rod.top { top: 0; }
.scroll-rod.bottom { bottom: 0; }

/* 轮播按钮 */
.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: rgba(26, 26, 26, 0.6);
    border: 1px solid var(--gold-deep);
    color: var(--gold-bright);
    font-size: 2rem;
    cursor: pointer;
    border-radius: 50%;
    z-index: 6;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.carousel-btn:hover {
    background: var(--red-deep);
    border-color: var(--gold-bright);
    box-shadow: 0 0 16px var(--shadow-gold);
}

.carousel-btn.prev { left: 30px; }
.carousel-btn.next { right: 30px; }

/* 圆点指示 */
.carousel-dots {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 6;
}

.carousel-dots button {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 1px solid var(--gold-deep);
    background: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
}

.carousel-dots button.active {
    background: var(--gold-bright);
    border-color: var(--gold-bright);
    box-shadow: 0 0 8px var(--shadow-gold);
    transform: scale(1.2);
}

/* ============ 通用区块 ============ */
.section {
    padding: 6rem 0;
    position: relative;
}

.section:nth-of-type(even) {
    background:
        radial-gradient(circle at 50% 0%, rgba(139, 0, 0, 0.04) 0%, transparent 50%),
        linear-gradient(180deg, transparent 0%, rgba(234, 217, 184, 0.4) 100%);
}

/* 区块标题 */
.section-head {
    text-align: center;
    margin-bottom: 3.5rem;
    position: relative;
}

.section-mark {
    display: inline-block;
    width: 56px;
    height: 56px;
    line-height: 52px;
    font-family: var(--font-title);
    font-size: 1.6rem;
    color: var(--gold-bright);
    background: linear-gradient(135deg, var(--red-china), var(--red-deep));
    border: 2px solid var(--gold-deep);
    border-radius: 50%;
    margin-bottom: 1rem;
    box-shadow: 0 4px 14px var(--shadow-red);
}

.section-title {
    font-family: var(--font-title);
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    color: var(--red-deep);
    letter-spacing: 0.25em;
    margin-bottom: 0.4rem;
}

.section-en {
    font-size: 0.85rem;
    color: var(--gold-deep);
    letter-spacing: 0.3em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.title-ornament {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    color: var(--gold-deep);
}

.title-ornament span {
    display: block;
    width: 60px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gold-deep), transparent);
}

.title-ornament i {
    font-style: normal;
    color: var(--red-china);
    font-size: 1.2rem;
}

/* ============ 3. 关于我们 ============ */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 4rem;
}

.about-img .img-frame {
    position: relative;
    padding: 12px;
    background: linear-gradient(135deg, var(--red-deep), var(--ink-black));
    border: 2px solid var(--gold-deep);
    border-radius: var(--radius);
    box-shadow: 0 12px 30px var(--shadow-red);
}

.about-img .img-frame::before {
    content: '';
    position: absolute;
    inset: 4px;
    border: 1px solid rgba(255, 215, 0, 0.4);
    pointer-events: none;
    z-index: 1;
}

.about-img img {
    border-radius: 2px;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.about-text .about-lead {
    font-family: var(--font-title);
    font-size: 1.4rem;
    color: var(--red-deep);
    margin-bottom: 1.25rem;
    letter-spacing: 0.08em;
    border-left: 3px solid var(--gold-deep);
    padding-left: 1rem;
}

.about-text p {
    margin-bottom: 1rem;
    font-size: 1.02rem;
    color: var(--text-body);
    text-indent: 2em;
}

/* 统计数据 */
.stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    padding: 2rem;
    background: linear-gradient(135deg, rgba(139, 0, 0, 0.92), rgba(26, 26, 26, 0.95));
    border: 1px solid var(--gold-deep);
    border-radius: var(--radius);
    box-shadow: 0 8px 24px var(--shadow-red);
}

.stat-item {
    text-align: center;
    color: var(--paper);
    position: relative;
}

.stat-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -0.75rem;
    top: 20%;
    height: 60%;
    width: 1px;
    background: linear-gradient(180deg, transparent, var(--gold-deep), transparent);
}

.stat-num {
    font-family: var(--font-title);
    font-size: clamp(2rem, 5vw, 3rem);
    color: var(--gold-bright);
    font-weight: 700;
    text-shadow: 0 2px 8px var(--shadow-gold);
}

.stat-unit {
    font-size: 1rem;
    color: var(--gold-deep);
    margin-left: 0.2rem;
}

.stat-label {
    display: block;
    font-size: 0.95rem;
    color: var(--paper-dark);
    letter-spacing: 0.15em;
    margin-top: 0.4rem;
}

/* ============ 4. 服务介绍 ============ */
.services-slider {
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    padding: 1rem 0 1.5rem;
    scrollbar-width: thin;
    scrollbar-color: var(--gold-deep) transparent;
}

.services-slider::-webkit-scrollbar {
    height: 6px;
}

.services-slider::-webkit-scrollbar-track {
    background: rgba(139, 0, 0, 0.1);
}

.services-slider::-webkit-scrollbar-thumb {
    background: var(--gold-deep);
    border-radius: 3px;
}

.services-track {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: 320px;
    gap: 1.5rem;
    padding: 0.5rem 1.25rem;
}

.service-card {
    scroll-snap-align: start;
    background: linear-gradient(180deg, var(--cream) 0%, var(--paper-dark) 100%);
    border: 1px solid var(--gold-deep);
    border-radius: var(--radius);
    padding: 2rem 1.5rem;
    text-align: center;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 0%, rgba(196, 30, 58, 0.08) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--red-china);
    box-shadow: 0 14px 30px var(--shadow-red);
}

.service-card:hover::before {
    opacity: 1;
}

/* 中式窗格 */
.window-frame {
    width: 120px;
    height: 120px;
    margin: 0 auto 1.5rem;
    position: relative;
    background: linear-gradient(135deg, var(--red-deep), var(--red-china));
    border: 3px solid var(--gold-deep);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 16px var(--shadow-red), inset 0 0 12px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

.window-lattice {
    position: absolute;
    inset: 6px;
    border-radius: 50%;
    background:
        linear-gradient(0deg, transparent 48%, rgba(255, 215, 0, 0.3) 49%, rgba(255, 215, 0, 0.3) 51%, transparent 52%),
        linear-gradient(90deg, transparent 48%, rgba(255, 215, 0, 0.3) 49%, rgba(255, 215, 0, 0.3) 51%, transparent 52%),
        linear-gradient(45deg, transparent 48%, rgba(255, 215, 0, 0.2) 49%, rgba(255, 215, 0, 0.2) 51%, transparent 52%),
        linear-gradient(-45deg, transparent 48%, rgba(255, 215, 0, 0.2) 49%, rgba(255, 215, 0, 0.2) 51%, transparent 52%);
    pointer-events: none;
}

.service-icon {
    font-family: var(--font-title);
    font-size: 2.6rem;
    color: var(--gold-bright);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    z-index: 1;
    transition: transform 0.4s ease;
}

.service-card:hover .service-icon {
    transform: rotate(360deg) scale(1.1);
}

.service-card h3 {
    font-family: var(--font-title);
    font-size: 1.4rem;
    color: var(--red-deep);
    letter-spacing: 0.15em;
    margin-bottom: 0.75rem;
    position: relative;
    z-index: 1;
}

.service-card p {
    color: var(--text-body);
    font-size: 0.95rem;
    position: relative;
    z-index: 1;
}

/* ============ 5. 客户案例 ============ */
.cases-slider {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
}

.case-card {
    background: var(--cream);
    border: 1px solid var(--gold-deep);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all 0.4s ease;
    box-shadow: 0 4px 14px rgba(139, 0, 0, 0.1);
}

.case-card:hover {
    transform: translateY(-6px);
    border-color: var(--red-china);
    box-shadow: 0 14px 28px var(--shadow-red);
}

.case-img {
    position: relative;
    aspect-ratio: 1 / 1;
    overflow: hidden;
}

.case-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.case-card:hover .case-img img {
    transform: scale(1.08);
}

.case-img::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(139, 0, 0, 0.3) 100%);
}

.case-body {
    padding: 1.5rem;
    text-align: center;
    position: relative;
}

.case-body h3 {
    font-family: var(--font-title);
    font-size: 1.2rem;
    color: var(--red-deep);
    letter-spacing: 0.1em;
    margin-bottom: 0.6rem;
}

.case-body p {
    color: var(--text-body);
    font-size: 0.92rem;
    font-style: italic;
    margin-bottom: 0.8rem;
    line-height: 1.6;
}

.case-tag {
    display: inline-block;
    padding: 0.3rem 0.9rem;
    background: linear-gradient(135deg, var(--red-china), var(--red-deep));
    color: var(--gold-bright);
    font-size: 0.8rem;
    border-radius: 20px;
    border: 1px solid var(--gold-deep);
    letter-spacing: 0.1em;
}

/* ============ 6. 新闻资讯 ============ */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.news-card {
    display: flex;
    gap: 1.25rem;
    padding: 1.5rem;
    background: var(--cream);
    border: 1px solid var(--gold-deep);
    border-left: 4px solid var(--red-china);
    border-radius: var(--radius);
    transition: all 0.4s ease;
}

.news-card:hover {
    background: linear-gradient(135deg, var(--cream), var(--paper-dark));
    box-shadow: 0 10px 24px var(--shadow-red);
    transform: translateX(6px);
}

.news-date {
    flex-shrink: 0;
    text-align: center;
    padding: 0.75rem 0.9rem;
    background: linear-gradient(180deg, var(--red-deep), var(--red-china));
    color: var(--gold-bright);
    border-radius: var(--radius);
    border: 1px solid var(--gold-deep);
    min-width: 70px;
}

.news-day {
    display: block;
    font-family: var(--font-title);
    font-size: 1.8rem;
    line-height: 1;
}

.news-month {
    display: block;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    margin-top: 0.3rem;
    color: var(--paper-dark);
}

.news-content h3 {
    font-family: var(--font-title);
    font-size: 1.1rem;
    color: var(--red-deep);
    margin-bottom: 0.5rem;
    letter-spacing: 0.05em;
    line-height: 1.4;
}

.news-content p {
    font-size: 0.9rem;
    color: var(--text-body);
    margin-bottom: 0.6rem;
    line-height: 1.7;
}

.news-more {
    font-size: 0.85rem;
    color: var(--red-china);
    letter-spacing: 0.1em;
    font-weight: 600;
}

/* ============ 7. 常见问题 FAQ ============ */
.faq-list {
    max-width: 820px;
    margin: 0 auto;
}

.faq-item {
    background: var(--cream);
    border: 1px solid var(--gold-deep);
    border-radius: var(--radius);
    margin-bottom: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: var(--red-china);
    box-shadow: 0 4px 14px var(--shadow-red);
}

.faq-question {
    width: 100%;
    background: transparent;
    border: none;
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
    text-align: left;
    font-family: var(--font-body);
    transition: background 0.3s ease;
}

.faq-question:hover {
    background: linear-gradient(90deg, rgba(196, 30, 58, 0.06), transparent);
}

.faq-q-mark {
    flex-shrink: 0;
    width: 34px;
    height: 34px;
    line-height: 30px;
    text-align: center;
    background: linear-gradient(135deg, var(--red-china), var(--red-deep));
    color: var(--gold-bright);
    border: 1px solid var(--gold-deep);
    border-radius: 50%;
    font-family: var(--font-title);
    font-size: 1rem;
}

.faq-q-text {
    flex: 1;
    font-size: 1.05rem;
    color: var(--red-deep);
    font-weight: 600;
    letter-spacing: 0.05em;
}

.faq-arrow {
    flex-shrink: 0;
    color: var(--gold-deep);
    font-size: 1.5rem;
    transition: transform 0.4s ease;
    line-height: 1;
}

.faq-item.open .faq-arrow {
    transform: rotate(45deg);
    color: var(--red-china);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease, padding 0.5s ease;
    padding: 0 1.5rem;
}

.faq-item.open .faq-answer {
    max-height: 400px;
    padding: 0 1.5rem 1.25rem;
}

.faq-answer p {
    padding-left: 3rem;
    color: var(--text-body);
    line-height: 1.8;
    position: relative;
}

.faq-answer p::before {
    content: '答';
    position: absolute;
    left: -3rem;
    top: 0;
    width: 34px;
    height: 34px;
    line-height: 30px;
    text-align: center;
    background: linear-gradient(135deg, var(--gold-deep), #8b6914);
    color: var(--ink-black);
    border: 1px solid var(--red-deep);
    border-radius: 50%;
    font-family: var(--font-title);
    font-size: 0.95rem;
}

/* ============ 8. 联系我们 ============ */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 3rem;
    align-items: start;
}

.contact-info {
    background: linear-gradient(160deg, var(--red-deep), var(--ink-black));
    color: var(--paper);
    padding: 2.5rem 2rem;
    border: 2px solid var(--gold-deep);
    border-radius: var(--radius);
    box-shadow: 0 10px 30px var(--shadow-red);
    position: relative;
}

.contact-info::before {
    content: '';
    position: absolute;
    inset: 6px;
    border: 1px solid rgba(255, 215, 0, 0.3);
    border-radius: 2px;
    pointer-events: none;
}

.contact-cn {
    font-family: var(--font-title);
    font-size: 1.5rem;
    color: var(--gold-bright);
    letter-spacing: 0.15em;
    margin-bottom: 0.3rem;
}

.contact-en {
    font-size: 0.8rem;
    color: var(--paper-dark);
    letter-spacing: 0.1em;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
}

.info-list li {
    display: flex;
    gap: 1rem;
    padding: 0.7rem 0;
    border-bottom: 1px dashed rgba(212, 175, 55, 0.3);
    font-size: 0.95rem;
}

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

.info-label {
    flex-shrink: 0;
    width: 50px;
    color: var(--gold-deep);
    font-family: var(--font-title);
    letter-spacing: 0.1em;
}

.info-val {
    color: var(--paper);
    flex: 1;
}

/* 表单 */
.contact-form {
    background: var(--cream);
    padding: 2.5rem 2rem;
    border: 2px solid var(--red-china);
    border-radius: var(--radius);
    box-shadow: 0 10px 30px var(--shadow-red);
    position: relative;
}

.contact-form::before {
    content: '';
    position: absolute;
    inset: 6px;
    border: 1px solid var(--gold-deep);
    border-radius: 2px;
    pointer-events: none;
}

.form-group {
    margin-bottom: 1.2rem;
    position: relative;
}

.form-group label {
    display: block;
    font-family: var(--font-title);
    color: var(--red-deep);
    margin-bottom: 0.4rem;
    letter-spacing: 0.1em;
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--paper);
    border: 1px solid var(--gold-deep);
    border-radius: var(--radius);
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--text-body);
    transition: all 0.3s ease;
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--red-china);
    box-shadow: 0 0 0 3px rgba(196, 30, 58, 0.15);
    background: var(--cream);
}

.form-group input.invalid,
.form-group textarea.invalid {
    border-color: var(--red-bright);
    background: rgba(220, 20, 60, 0.05);
}

.form-error {
    display: block;
    color: var(--red-bright);
    font-size: 0.82rem;
    margin-top: 0.3rem;
    min-height: 1em;
}

.form-submit {
    width: 100%;
    padding: 0.9rem;
    background: linear-gradient(135deg, var(--red-china), var(--red-deep));
    color: var(--gold-bright);
    border: 1px solid var(--gold-deep);
    border-radius: var(--radius);
    font-family: var(--font-title);
    font-size: 1.1rem;
    letter-spacing: 0.3em;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 0.5rem;
}

.form-submit:hover {
    background: linear-gradient(135deg, var(--gold-deep), var(--red-china));
    color: var(--ink-black);
    box-shadow: 0 6px 18px var(--shadow-gold);
    transform: translateY(-2px);
}

.form-success {
    display: none;
    margin-top: 1rem;
    padding: 0.75rem;
    background: rgba(212, 175, 55, 0.15);
    border: 1px solid var(--gold-deep);
    color: var(--red-deep);
    text-align: center;
    border-radius: var(--radius);
    font-size: 0.92rem;
}

.form-success.show {
    display: block;
    animation: fadeIn 0.5s ease;
}

/* ============ 9. 页脚 ============ */
.site-footer {
    background: linear-gradient(180deg, var(--ink-black) 0%, #0d0d0d 100%);
    color: var(--paper-dark);
    padding: 3rem 0 1.5rem;
    border-top: 2px solid var(--gold-deep);
    position: relative;
}

.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--red-deep), var(--gold-deep), var(--red-china), var(--gold-deep), var(--red-deep));
}

.footer-links {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px dashed rgba(212, 175, 55, 0.3);
}

.footer-title {
    font-family: var(--font-title);
    color: var(--gold-bright);
    letter-spacing: 0.3em;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.footer-links ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--paper-dark);
    font-size: 0.92rem;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.2rem 0;
}

.footer-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--gold-bright);
    transition: width 0.3s ease;
}

.footer-links a:hover {
    color: var(--gold-bright);
}

.footer-links a:hover::after {
    width: 100%;
}

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

.footer-seal {
    font-family: var(--font-title);
    color: var(--red-china);
    font-size: 1.4rem;
    letter-spacing: 0.3em;
    margin-bottom: 0.6rem;
    text-shadow: 0 0 10px var(--shadow-red);
}

.footer-copy {
    font-size: 0.82rem;
    color: var(--paper-dark);
    margin-bottom: 0.3rem;
}

.footer-addr {
    font-size: 0.82rem;
    color: rgba(245, 236, 217, 0.5);
}

/* ============ 回到顶部 ============ */
.back-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--red-china), var(--red-deep));
    color: var(--gold-bright);
    border: 2px solid var(--gold-deep);
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s ease;
    z-index: 999;
    box-shadow: 0 4px 14px var(--shadow-red);
}

.back-top.show {
    opacity: 1;
    visibility: visible;
}

.back-top:hover {
    background: linear-gradient(135deg, var(--gold-deep), var(--red-china));
    color: var(--ink-black);
    transform: translateY(-4px);
}

/* ============ 花瓣飘落 ============ */
.petals {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 998;
    overflow: hidden;
}

.petal {
    position: absolute;
    top: -30px;
    width: 16px;
    height: 16px;
    background: radial-gradient(circle at 30% 30%, var(--red-bright) 0%, var(--red-deep) 100%);
    border-radius: 0 100% 0 100%;
    opacity: 0.7;
    animation: fall linear infinite;
    box-shadow: 0 0 4px var(--shadow-red);
}

@keyframes fall {
    0% {
        transform: translateY(0) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.7;
    }
    90% {
        opacity: 0.7;
    }
    100% {
        transform: translateY(105vh) rotate(720deg);
        opacity: 0;
    }
}

/* ============ 滚动揭示动画 ============ */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 水墨晕染过渡 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes inkSpread {
    0% {
        clip-path: circle(0% at 50% 50%);
        opacity: 0;
    }
    100% {
        clip-path: circle(150% at 50% 50%);
        opacity: 1;
    }
}

/* ============ 响应式 - 平板 ============ */
@media (max-width: 992px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .about-img {
        max-width: 600px;
        margin: 0 auto;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

    .stat-item:nth-child(2)::after {
        display: none;
    }

    .section {
        padding: 4.5rem 0;
    }
}

/* ============ 响应式 - 移动端 ============ */
@media (max-width: 768px) {
    /* 移动端导航 */
    .hamburger {
        display: flex;
    }

    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 75%;
        max-width: 320px;
        height: 100vh;
        background: linear-gradient(180deg, rgba(26, 26, 26, 0.98), rgba(139, 0, 0, 0.95));
        border-left: 2px solid var(--gold-deep);
        padding: 5rem 1.5rem 2rem;
        transition: right 0.4s cubic-bezier(0.77, 0, 0.175, 1);
        overflow-y: auto;
        box-shadow: -8px 0 30px rgba(0, 0, 0, 0.5);
    }

    .main-nav.open {
        right: 0;
    }

    .main-nav ul {
        flex-direction: column;
        align-items: stretch;
        gap: 0.5rem;
    }

    .main-nav a {
        display: block;
        padding: 0.9rem 1rem;
        font-size: 1.05rem;
        border-bottom: 1px dashed rgba(212, 175, 55, 0.3);
    }

    .main-nav a::after {
        display: none;
    }

    .main-nav .nav-cta {
        text-align: center;
        margin-top: 0.5rem;
    }

    .logo-en {
        display: none;
    }

    .logo-cn {
        font-size: 1.2rem;
    }

    .logo-seal {
        width: 40px;
        height: 40px;
        font-size: 1.3rem;
    }

    /* 轮播图 */
    .hero {
        min-height: 500px;
        height: 85vh;
    }

    .carousel-btn {
        width: 40px;
        height: 40px;
        font-size: 1.5rem;
    }

    .carousel-btn.prev { left: 12px; }
    .carousel-btn.next { right: 12px; }

    .scroll-rod { height: 10px; }
    .scroll-rod::before, .scroll-rod::after { width: 18px; height: 18px; }

    /* 区块 */
    .section {
        padding: 3.5rem 0;
    }

    .section-head {
        margin-bottom: 2.5rem;
    }

    .section-mark {
        width: 48px;
        height: 48px;
        line-height: 44px;
        font-size: 1.3rem;
    }

    /* 统计 */
    .stats {
        padding: 1.5rem 1rem;
        gap: 1.5rem 0.5rem;
    }

    .stat-item::after { display: none !important; }

    /* 服务 */
    .services-track {
        grid-auto-columns: 85vw;
    }

    /* 案例 */
    .cases-slider {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    /* 新闻 */
    .news-card {
        flex-direction: column;
        gap: 1rem;
    }

    .news-date {
        align-self: flex-start;
    }

    /* FAQ */
    .faq-answer p {
        padding-left: 0;
    }

    .faq-answer p::before {
        position: static;
        display: inline-block;
        margin-right: 0.5rem;
        vertical-align: middle;
    }

    /* 联系 */
    .contact-info,
    .contact-form {
        padding: 1.75rem 1.25rem;
    }

    /* 页脚 */
    .footer-links ul {
        gap: 1rem;
    }

    .back-top {
        bottom: 20px;
        right: 20px;
        width: 42px;
        height: 42px;
        font-size: 1.3rem;
    }
}

/* ============ 小屏手机 ============ */
@media (max-width: 480px) {
    .stats {
        grid-template-columns: 1fr;
    }

    .slide-caption {
        bottom: 12%;
        padding: 1rem;
    }

    .container {
        padding: 0 1rem;
    }

    .section-title {
        letter-spacing: 0.15em;
    }
}

/* ============ 减少动画偏好 ============ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }

    .petals { display: none; }
}