/* ============================================
   和和新材 H&H NEW MATERIAL
   Premium Editorial Design System v2.0
   暗夜高级感 · 衬线编辑排版 · 发丝线美学
   ============================================ */

:root {
    /* Color — 暗夜 + 暖纸 + 一点红 */
    --red: #e60012;
    --red-deep: #b8000f;
    --ink: #0b0b0c;
    --ink-2: #131315;
    --paper: #f5f3ee;
    --white: #ffffff;
    --text: #17181a;
    --text-2: #54565a;
    --text-3: #8b8d92;
    --line: rgba(11, 11, 12, 0.12);
    --line-soft: rgba(11, 11, 12, 0.07);
    --line-light: rgba(255, 255, 255, 0.16);
    --line-lighter: rgba(255, 255, 255, 0.09);

    /* Type */
    --serif: "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
    --sans: "Inter", "PingFang SC", "Microsoft YaHei", "微软雅黑", sans-serif;

    /* Motion — 高级缓动 */
    --ease: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-io: cubic-bezier(0.65, 0, 0.35, 1);

    --container: 1440px;
    --header-h: 76px;

    /* 兼容旧变量（子页面内联样式在用） */
    --color-primary: var(--red);
    --color-text: var(--text);
    --color-text-light: var(--text-3);
    --color-text-gray: var(--text-2);
    --color-bg: var(--white);
    --color-bg-gray: var(--paper);
    --color-bg-dark: var(--ink);
    --color-border: var(--line);
}

/* ============ Reset & Base ============ */
* { margin: 0; padding: 0; box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--sans);
    color: var(--text);
    background: var(--white);
    line-height: 1.7;
    overflow-x: hidden;
}

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

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--ink); }
::-webkit-scrollbar-thumb { background: #3a3b3e; border: 2px solid var(--ink); }
::-webkit-scrollbar-thumb:hover { background: var(--red); }

a { text-decoration: none; color: inherit; transition: color 0.35s var(--ease); }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 clamp(20px, 4vw, 56px);
}

.container-sm { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* 英文小标签 — 宽字距 */
.label {
    font-family: var(--sans);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.38em;
    text-transform: uppercase;
    color: var(--text-3);
}

.label-red { color: var(--red); }

/* ============ Header ============ */
.header {
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    height: var(--header-h);
    z-index: 1000;
    background: transparent;
    transition: transform 0.5s var(--ease), background 0.4s ease, box-shadow 0.4s ease;
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.86);
    -webkit-backdrop-filter: blur(16px) saturate(1.5);
    backdrop-filter: blur(16px) saturate(1.5);
    box-shadow: inset 0 -1px 0 var(--line-soft);
}

.header.hidden { transform: translateY(-100%); }

.header-inner {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 clamp(20px, 4vw, 56px);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    z-index: 1001;
    text-decoration: none;
}
.logo img {
    display: block;
    height: 44px;
    width: auto;
    transition: opacity 0.4s ease, transform 0.4s ease;
}
.logo .logo-light { display: block; }
.logo .logo-dark { display: none; }
.header.scrolled .logo .logo-light { display: none; }
.header.scrolled .logo .logo-dark { display: block; }
.logo:hover img { transform: scale(1.02); }

/* 兼容：保留 .logo-text 类但隐藏（防止 JS 误操作） */
.logo-text { display: none; }

/* Nav */
.nav { display: flex; align-items: center; gap: 2px; }
.nav-item { position: relative; }

.nav-link {
    display: flex;
    align-items: center;
    padding: 10px 17px;
    color: rgba(255, 255, 255, 0.88);
    font-size: 0.82rem;
    font-weight: 400;
    letter-spacing: 0.14em;
    cursor: pointer;
    transition: color 0.35s ease;
    position: relative;
}

.header.scrolled .nav-link { color: var(--text-2); }
.nav-link:hover, .nav-link.active { color: var(--red) !important; }

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 17px;
    width: 0;
    height: 1px;
    background: var(--red);
    transition: width 0.45s var(--ease);
}

.nav-link:hover::after, .nav-link.active::after { width: calc(100% - 34px); }

/* Dropdown — 直角 + 发丝线 + 毛玻璃 */
.dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(12px);
    background: rgba(255, 255, 255, 0.92);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    min-width: 190px;
    border: 1px solid var(--line-soft);
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s var(--ease);
    padding: 6px 0;
}

.dropdown::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 2px;
    background: var(--red);
}

.nav-item:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown a {
    display: block;
    padding: 11px 22px;
    color: var(--text-2);
    font-size: 0.82rem;
    letter-spacing: 0.1em;
    transition: all 0.3s ease;
    position: relative;
}

.dropdown a::before {
    content: '';
    position: absolute;
    left: 0; top: 50%;
    width: 0; height: 1px;
    background: var(--red);
    transition: width 0.3s var(--ease);
    transform: translateY(-50%);
}

.dropdown a:hover { color: var(--red); padding-left: 34px; }
.dropdown a:hover::before { width: 20px; left: 8px; }

/* Lang switch */
.lang-switch {
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    padding: 7px 15px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    margin-left: 14px;
    transition: all 0.35s ease;
}

.header.scrolled .lang-switch { color: var(--text-2); border-color: var(--line); }
.lang-switch:hover { border-color: var(--red); color: var(--red); }

/* Mobile toggle */
.menu-toggle { display: none; flex-direction: column; gap: 6px; cursor: pointer; z-index: 1001; padding: 6px; }
.menu-toggle span { width: 26px; height: 1.5px; background: #fff; transition: all 0.4s var(--ease); }
.header.scrolled .menu-toggle span { background: var(--text); }
.menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5.5px); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5.5px); }

/* ============ Hero — 全屏视频 + 逐行揭示 ============ */
.hero {
    position: relative;
    height: 100vh;
    min-height: 640px;
    display: flex;
    align-items: flex-end;
    overflow: hidden;
    background: var(--ink);
}

.hero-video, .hero-image {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    object-fit: cover;
    z-index: 1;
    will-change: transform;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(11,11,12,0.42) 0%, rgba(11,11,12,0.08) 55%, transparent 100%),
        linear-gradient(180deg, rgba(11,11,12,0.32) 0%, rgba(11,11,12,0.12) 40%, rgba(11,11,12,0.68) 100%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    color: #fff;
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 clamp(20px, 4vw, 56px) clamp(110px, 14vh, 150px);
}

.hero-eyebrow {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 28px;
}

.hero-eyebrow .rule {
    display: inline-block;
    width: 56px;
    height: 1px;
    background: var(--red);
}

.hero-eyebrow .label { color: rgba(255, 255, 255, 0.85); }

.hero-title {
    font-family: var(--serif);
    font-size: clamp(2.6rem, 6.4vw, 5.4rem);
    font-weight: 600;
    line-height: 1.18;
    letter-spacing: 0.06em;
    color: #fff;
}

.hero-title .line {
    display: block;
    overflow: hidden;
}

.hero-title .line > span {
    display: block;
    transform: translateY(115%);
    transition: transform 1.2s var(--ease);
}

body.loaded .hero-title .line:nth-child(1) > span { transform: translateY(0); transition-delay: 0.15s; }
body.loaded .hero-title .line:nth-child(2) > span { transform: translateY(0); transition-delay: 0.32s; }
body.loaded .hero-eyebrow { animation: heroFade 1.2s var(--ease) 0.05s both; }
body.loaded .hero-sub { animation: heroFade 1.2s var(--ease) 0.55s both; }
body.loaded .hero-meta { animation: heroFade 1.2s var(--ease) 0.75s both; }
body.loaded .hero-side { animation: heroFade 1.4s var(--ease) 0.9s both; }

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

.hero-sub {
    margin-top: 26px;
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}

.hero-sub .slogan {
    font-family: var(--serif);
    font-size: 1.05rem;
    font-weight: 400;
    letter-spacing: 0.42em;
    color: rgba(255, 255, 255, 0.78);
}

.hero-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 13px 34px;
    border: 1px solid rgba(255, 255, 255, 0.5);
    color: #fff;
    font-size: 0.78rem;
    letter-spacing: 0.28em;
    transition: all 0.45s var(--ease);
    cursor: pointer;
}

.hero-btn:hover {
    background: var(--red);
    border-color: var(--red);
    letter-spacing: 0.34em;
}

/* 英雄区底部信息栏 */
.hero-meta {
    position: absolute;
    bottom: 0; left: 0;
    width: 100%;
    z-index: 4;
    border-top: 1px solid var(--line-light);
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
}

.hero-meta-inner {
    max-width: var(--container);
    margin: 0 auto;
    padding: 18px clamp(20px, 4vw, 56px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: rgba(255, 255, 255, 0.55);
    font-size: 0.72rem;
    letter-spacing: 0.24em;
    text-transform: uppercase;
}

.hero-meta-item { display: flex; align-items: center; gap: 10px; }
.hero-meta-item em { font-style: normal; color: #fff; font-weight: 500; }
.hero-meta-item .dot { width: 4px; height: 4px; background: var(--red); }

.hero-scroll {
    display: flex;
    align-items: center;
    gap: 12px;
    color: rgba(255, 255, 255, 0.55);
}

.hero-scroll .scroll-line {
    width: 52px;
    height: 1px;
    background: rgba(255, 255, 255, 0.25);
    position: relative;
    overflow: hidden;
}

.hero-scroll .scroll-line::after {
    content: '';
    position: absolute;
    top: 0; left: -50%;
    width: 50%; height: 100%;
    background: var(--red);
    animation: scrollSlide 2.2s var(--ease-io) infinite;
}

@keyframes scrollSlide {
    0% { left: -50%; }
    100% { left: 110%; }
}

/* 侧边竖排英文 */
.hero-side {
    position: absolute;
    right: clamp(20px, 4vw, 56px);
    top: 50%;
    transform: translateY(-50%);
    z-index: 4;
    writing-mode: vertical-rl;
    font-size: 0.7rem;
    letter-spacing: 0.5em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.4);
}

/* ============ Marquee 滚动带 ============ */
.marquee {
    background: var(--ink);
    border-top: 1px solid var(--line-lighter);
    border-bottom: 1px solid var(--line-lighter);
    overflow: hidden;
    padding: 22px 0;
    position: relative;
    z-index: 5;
}

.marquee-track {
    display: flex;
    width: max-content;
    animation: marqueeMove 36s linear infinite;
}

.marquee:hover .marquee-track { animation-play-state: paused; }

.marquee-seg {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.marquee-seg span {
    font-family: var(--serif);
    font-size: 1.05rem;
    letter-spacing: 0.32em;
    color: rgba(255, 255, 255, 0.85);
    white-space: nowrap;
    padding: 0 34px;
}

.marquee-seg span.en {
    font-family: var(--sans);
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.42em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.38);
}

.marquee-seg i {
    width: 7px; height: 7px;
    background: var(--red);
    transform: rotate(45deg);
    flex-shrink: 0;
}

@keyframes marqueeMove {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

/* ============ Section 通用 ============ */
.section { padding: clamp(80px, 10vw, 140px) 0; position: relative; }
.section-gray { background: var(--paper); }
.section-dark { background: var(--ink); color: #fff; }

/* 编辑式分节头：序号 + 英文标签 + 大标题 + 右侧描述 */
.sec-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 40px;
    padding-bottom: 34px;
    border-bottom: 1px solid var(--line);
    margin-bottom: clamp(46px, 6vw, 72px);
}

.section-dark .sec-head { border-color: var(--line-light); }

.sec-head-left { display: flex; align-items: flex-start; gap: 26px; }

.sec-index {
    font-family: var(--sans);
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    color: var(--red);
    padding-top: 12px;
}

.sec-titles h2 {
    font-family: var(--serif);
    font-size: clamp(1.9rem, 3.6vw, 2.9rem);
    font-weight: 600;
    letter-spacing: 0.1em;
    line-height: 1.3;
    color: var(--text);
}

.section-dark .sec-titles h2 { color: #fff; }

.sec-titles .label { display: block; margin-bottom: 12px; }

.sec-head-right {
    max-width: 340px;
    text-align: right;
    padding-bottom: 6px;
}

.sec-head-right p {
    font-size: 0.92rem;
    color: var(--text-3);
    line-height: 1.9;
    margin-bottom: 14px;
}

.section-dark .sec-head-right p { color: rgba(255, 255, 255, 0.5); }

.sec-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 0.78rem;
    letter-spacing: 0.24em;
    color: var(--text);
    border-bottom: 1px solid var(--line);
    padding-bottom: 6px;
    transition: all 0.4s var(--ease);
}

.section-dark .sec-link { color: #fff; border-color: var(--line-light); }
.sec-link:hover { color: var(--red); border-color: var(--red); gap: 16px; }

/* 兼容旧的居中标题（子页面仍在用） */
.section-title { text-align: center; margin-bottom: clamp(44px, 6vw, 68px); }

.section-title .en-title {
    font-family: var(--sans);
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--red);
    text-transform: uppercase;
    letter-spacing: 0.42em;
    margin-bottom: 16px;
    display: block;
}

.section-title h2 {
    font-family: var(--serif);
    font-size: clamp(1.8rem, 3.2vw, 2.5rem);
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--text);
    margin-bottom: 14px;
}

.section-dark .section-title h2 { color: #fff; }
.section-title p { font-size: 0.95rem; color: var(--text-3); letter-spacing: 0.1em; }

/* ============ 按钮 — 直角发丝线 ============ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 14px 38px;
    border: 1px solid var(--text);
    color: var(--text);
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.26em;
    cursor: pointer;
    transition: all 0.45s var(--ease);
    background: transparent;
}

.btn:hover { background: var(--ink); border-color: var(--ink); color: #fff; letter-spacing: 0.32em; }

.btn-red { border-color: var(--red); color: var(--red); }
.btn-red:hover { background: var(--red); border-color: var(--red); color: #fff; }

.btn-white { border-color: rgba(255,255,255,0.6); color: #fff; }
.btn-white:hover { background: #fff; border-color: #fff; color: var(--ink); }

/* ============ 首页 Intro + 数据 ============ */
.intro-grid {
    display: grid;
    grid-template-columns: 1fr 1.35fr;
    gap: clamp(40px, 7vw, 110px);
    align-items: start;
}

.intro-sticky { position: sticky; top: 120px; }

.intro-sticky h2 {
    font-family: var(--serif);
    font-size: clamp(1.9rem, 3.4vw, 2.8rem);
    font-weight: 600;
    letter-spacing: 0.1em;
    line-height: 1.35;
    margin-top: 18px;
}

.intro-sticky .red-mark {
    display: block;
    width: 44px; height: 3px;
    background: var(--red);
    margin-top: 30px;
}

.intro-body p.lead {
    font-family: var(--serif);
    font-size: clamp(1.1rem, 1.6vw, 1.32rem);
    line-height: 2.1;
    letter-spacing: 0.06em;
    color: var(--text);
    margin-bottom: 26px;
}

.intro-body p.normal {
    font-size: 0.95rem;
    color: var(--text-2);
    line-height: 2.1;
    letter-spacing: 0.04em;
    margin-bottom: 18px;
}

/* 数据统计 */
.stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    margin-top: clamp(44px, 5vw, 64px);
    border-top: 1px solid var(--line);
}

.stat {
    padding: 30px 26px 26px 0;
    border-bottom: 1px solid var(--line);
    position: relative;
}

.stat:nth-child(odd) { border-right: 1px solid var(--line); padding-right: 26px; }
.stat:nth-child(even) { padding-left: 26px; }

.stat-num {
    font-family: var(--sans);
    font-size: clamp(2.4rem, 4vw, 3.4rem);
    font-weight: 300;
    letter-spacing: 0.02em;
    color: var(--text);
    line-height: 1.1;
    display: flex;
    align-items: baseline;
    gap: 4px;
}

.stat-num .suffix {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--red);
    letter-spacing: 0.1em;
}

.stat-label {
    margin-top: 10px;
    font-size: 0.8rem;
    letter-spacing: 0.18em;
    color: var(--text-3);
}

/* 兼容旧 about-section（若其他页面用到） */
.about-section { text-align: center; padding: clamp(80px, 10vw, 130px) 0; }
.about-section h2 { font-family: var(--serif); font-size: 2.2rem; font-weight: 600; letter-spacing: 0.12em; margin-bottom: 26px; }
.about-section p { font-size: 1.05rem; color: var(--text-2); line-height: 2.1; max-width: 880px; margin: 0 auto; }

.stock-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 20px;
    border: 1px solid var(--red);
    color: var(--red);
    font-size: 0.75rem;
    letter-spacing: 0.22em;
    margin-bottom: 26px;
}

.stock-badge::before { content: ''; width: 5px; height: 5px; background: var(--red); }

/* ============ 创新中心（首页视差大图） ============ */
.innovation-home {
    position: relative;
    height: clamp(480px, 72vh, 640px);
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--ink);
}

.innovation-home-bg {
    position: absolute;
    top: -12%; left: 0;
    width: 100%; height: 124%;
    z-index: 1;
    will-change: transform;
}

.innovation-home-bg img { width: 100%; height: 100%; object-fit: cover; }

.innovation-home-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(11,11,12,0.78) 0%, rgba(11,11,12,0.35) 55%, rgba(11,11,12,0.1) 100%);
    z-index: 2;
}

.innovation-home-content {
    position: relative;
    z-index: 3;
    color: #fff;
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 clamp(20px, 4vw, 56px);
}

.innovation-home-content h2 {
    font-family: var(--serif);
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 600;
    letter-spacing: 0.12em;
    margin: 18px 0 20px;
}

.innovation-home-content p {
    font-size: 1rem;
    line-height: 2.1;
    letter-spacing: 0.12em;
    margin-bottom: 36px;
    color: rgba(255, 255, 255, 0.75);
}

/* ============ 产品 ============ */
.products-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
}

.product-card {
    position: relative;
    overflow: hidden;
    aspect-ratio: 3 / 4.1;
    cursor: pointer;
    background: var(--ink-2);
}

.product-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(0.35) brightness(0.92);
    transition: transform 1.1s var(--ease), filter 0.8s ease;
}

.product-card:hover img {
    transform: scale(1.07);
    filter: grayscale(0) brightness(1);
}

.product-card-index {
    position: absolute;
    top: 20px; left: 22px;
    z-index: 3;
    font-family: var(--sans);
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    color: rgba(255, 255, 255, 0.85);
    display: flex;
    align-items: center;
    gap: 10px;
}

.product-card-index::after {
    content: '';
    width: 26px; height: 1px;
    background: rgba(255, 255, 255, 0.5);
    transition: background 0.4s ease;
}

.product-card:hover .product-card-index::after { background: var(--red); }

.product-card-overlay {
    position: absolute;
    bottom: 0; left: 0;
    width: 100%;
    padding: 60px 22px 26px;
    background: linear-gradient(transparent, rgba(11, 11, 12, 0.88));
    color: #fff;
    z-index: 2;
}

.product-card-overlay h3 {
    font-family: var(--serif);
    font-size: 1.28rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    margin-bottom: 8px;
}

.product-card-overlay p {
    font-size: 0.78rem;
    letter-spacing: 0.06em;
    color: rgba(255, 255, 255, 0.62);
    line-height: 1.7;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: all 0.55s var(--ease);
}

.product-card:hover .product-card-overlay p { max-height: 60px; opacity: 1; }

.product-card-arrow {
    position: absolute;
    top: 18px; right: 18px;
    width: 38px; height: 38px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 0.9rem;
    z-index: 3;
    opacity: 0;
    transform: translateY(-8px);
    transition: all 0.45s var(--ease);
}

.product-card:hover .product-card-arrow {
    opacity: 1;
    transform: translateY(0);
    background: var(--red);
    border-color: var(--red);
}

/* ============ 品牌轮播 ============ */
.brand-section { position: relative; overflow: hidden; }

.brand-watermark {
    position: absolute;
    top: 40px; left: 50%;
    transform: translateX(-50%);
    font-family: var(--sans);
    font-size: clamp(4rem, 12vw, 10rem);
    font-weight: 700;
    letter-spacing: 0.1em;
    color: transparent;
    -webkit-text-stroke: 1px rgba(255, 255, 255, 0.06);
    white-space: nowrap;
    pointer-events: none;
    user-select: none;
}

.brand-slider {
    position: relative;
    height: clamp(440px, 62vh, 580px);
    overflow: hidden;
    border: 1px solid var(--line-light);
}

.brand-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 1s var(--ease);
}

.brand-slide.active { opacity: 1; }

.brand-slide img {
    width: 100%; height: 100%;
    object-fit: cover;
    transform: scale(1.06);
    transition: transform 6s var(--ease);
}

.brand-slide.active img { transform: scale(1); }

.brand-slide-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(11,11,12,0.82) 0%, rgba(11,11,12,0.3) 60%, rgba(11,11,12,0.05) 100%);
    display: flex;
    align-items: center;
}

.brand-slide-content {
    color: #fff;
    padding: 0 clamp(30px, 6vw, 80px);
    max-width: 620px;
}

.brand-slide-content .label { color: rgba(255, 255, 255, 0.5); }

.brand-slide-content h2 {
    font-family: var(--serif);
    font-size: clamp(2.4rem, 5vw, 4rem);
    font-weight: 600;
    letter-spacing: 0.14em;
    margin: 16px 0 18px;
}

.brand-slide-content p {
    font-size: 1rem;
    letter-spacing: 0.16em;
    margin-bottom: 34px;
    color: rgba(255, 255, 255, 0.75);
}

.brand-dots {
    display: flex;
    justify-content: center;
    gap: clamp(24px, 5vw, 60px);
    margin-top: 36px;
    align-items: center;
}

.brand-dot {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    opacity: 0.4;
    transition: opacity 0.4s ease;
}

.brand-dot span {
    font-size: 0.82rem;
    letter-spacing: 0.24em;
    color: #fff;
}

.brand-dot.active { opacity: 1; }
.brand-dot img { height: 28px; filter: brightness(0) invert(1); }

.brand-dot-line {
    width: 72px;
    height: 1px;
    background: rgba(255, 255, 255, 0.2);
    overflow: hidden;
}

.brand-dot-line span {
    display: block;
    height: 100%;
    width: 0;
    background: var(--red);
}

.brand-dot.active .brand-dot-line span {
    width: 100%;
    transition: width 4.6s linear;
}

/* ============ 新闻 ============ */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(24px, 3vw, 44px);
}

.news-card {
    background: var(--white);
    border: 1px solid var(--line-soft);
    overflow: hidden;
    cursor: pointer;
    transition: border-color 0.4s ease, transform 0.6s var(--ease);
    display: flex;
    flex-direction: column;
}

.news-card:hover { border-color: var(--text); transform: translateY(-6px); }

.news-card-img {
    width: 100%;
    height: 230px;
    overflow: hidden;
    background: var(--ink-2);
}

.news-card-img img {
    width: 100%; height: 100%;
    object-fit: cover;
    filter: grayscale(0.4);
    transition: transform 1s var(--ease), filter 0.7s ease;
}

.news-card:hover .news-card-img img { transform: scale(1.07); filter: grayscale(0); }

.news-card-body {
    padding: 26px 26px 28px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.news-date {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.72rem;
    letter-spacing: 0.22em;
    color: var(--text-3);
    margin-bottom: 14px;
    text-transform: uppercase;
}

.news-date::before { content: ''; width: 18px; height: 1px; background: var(--red); }

.news-card-body h3 {
    font-family: var(--serif);
    font-size: 1.06rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    margin-bottom: 12px;
    color: var(--text);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.35s ease;
}

.news-card:hover .news-card-body h3 { color: var(--red); }

.news-card-body p {
    font-size: 0.85rem;
    color: var(--text-3);
    line-height: 1.9;
    margin-bottom: 18px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-card-more {
    margin-top: auto;
    font-size: 0.74rem;
    letter-spacing: 0.26em;
    color: var(--text);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.4s var(--ease);
}

.news-card:hover .news-card-more { color: var(--red); gap: 14px; }

.news-more-btn { text-align: center; margin-top: clamp(44px, 5vw, 60px); }

/* 新闻列表页行样式 */
.news-list-item {
    display: grid;
    grid-template-columns: 200px 1fr auto;
    gap: 36px;
    align-items: center;
    padding: 34px 0;
    border-bottom: 1px solid var(--line);
    transition: all 0.4s ease;
    cursor: pointer;
}

.news-list-item:hover { padding-left: 14px; }

.news-list-item .thumb {
    width: 200px; height: 120px;
    overflow: hidden;
    background: var(--ink-2);
}

.news-list-item .thumb img {
    width: 100%; height: 100%;
    object-fit: cover;
    filter: grayscale(0.35);
    transition: all 0.7s var(--ease);
}

.news-list-item:hover .thumb img { filter: grayscale(0); transform: scale(1.06); }

.news-list-item h3 {
    font-family: var(--serif);
    font-size: 1.15rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
    transition: color 0.3s ease;
}

.news-list-item:hover h3 { color: var(--red); }

.news-list-item p { font-size: 0.85rem; color: var(--text-3); line-height: 1.8; }

.news-list-item .date {
    font-size: 0.78rem;
    letter-spacing: 0.14em;
    color: var(--text-3);
    white-space: nowrap;
}

/* ============ CTA ============ */
.cta-section {
    position: relative;
    height: clamp(340px, 48vh, 440px);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--ink);
}

.cta-bg { position: absolute; top: -10%; left: 0; width: 100%; height: 120%; z-index: 1; will-change: transform; }
.cta-bg img { width: 100%; height: 100%; object-fit: cover; }

.cta-overlay {
    position: absolute;
    inset: 0;
    background: rgba(11, 11, 12, 0.72);
    z-index: 2;
}

.cta-content {
    position: relative;
    z-index: 3;
    text-align: center;
    color: #fff;
    padding: 0 24px;
}

.cta-content .label { color: rgba(255, 255, 255, 0.5); display: block; margin-bottom: 20px; }

.cta-content h2 {
    font-family: var(--serif);
    font-size: clamp(1.4rem, 2.8vw, 2.1rem);
    font-weight: 600;
    letter-spacing: 0.14em;
    line-height: 1.8;
    margin-bottom: 38px;
}

/* ============ Footer ============ */
.footer {
    background: var(--ink);
    color: #88898d;
    padding: clamp(60px, 8vw, 100px) 0 0;
    position: relative;
    overflow: hidden;
}

.footer-brand {
    padding-bottom: clamp(40px, 5vw, 64px);
    margin-bottom: clamp(40px, 5vw, 60px);
    border-bottom: 1px solid var(--line-lighter);
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 30px;
    flex-wrap: wrap;
}

.footer-brand-name {
    font-family: var(--serif);
    font-size: clamp(2.6rem, 6vw, 4.6rem);
    font-weight: 600;
    letter-spacing: 0.16em;
    color: #fff;
    line-height: 1.2;
}

.footer-brand-en {
    font-size: 0.72rem;
    letter-spacing: 0.44em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.35);
    margin-top: 14px;
}

.footer-brand-slogan {
    font-family: var(--serif);
    font-size: 1rem;
    letter-spacing: 0.4em;
    color: rgba(255, 255, 255, 0.5);
    padding-bottom: 10px;
}

.footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: clamp(36px, 5vw, 60px);
    padding-bottom: clamp(40px, 5vw, 56px);
    border-bottom: 1px solid var(--line-lighter);
}

.footer-links-col {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.footer-links-col h4,
.footer-contact h4,
.footer-search h4 {
    color: #fff;
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.26em;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 12px;
}

.footer-links-col h4::after,
.footer-contact h4::after,
.footer-search h4::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 20px; height: 1px;
    background: var(--red);
}

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

.footer-links-col ul li a {
    font-size: 0.82rem;
    color: #75767b;
    letter-spacing: 0.08em;
    transition: all 0.35s var(--ease);
}

.footer-links-col ul li a:hover { color: #fff; padding-left: 8px; }

.footer-contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
    font-size: 0.85rem;
    letter-spacing: 0.06em;
}

.footer-contact-item a { color: #b9babd; }
.footer-contact-item a:hover { color: #fff; }

.footer-social { display: flex; gap: 12px; margin-top: 18px; }

.footer-social a {
    width: 38px; height: 38px;
    border: 1px solid var(--line-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.4s var(--ease);
}

.footer-social a:hover { background: var(--red); border-color: var(--red); transform: translateY(-3px); }
.footer-social svg { width: 16px; height: 16px; fill: #fff; }

.footer-search { margin-bottom: 28px; }

.search-box {
    display: flex;
    border: 1px solid var(--line-light);
    overflow: hidden;
    transition: border-color 0.35s ease;
}

.search-box:focus-within { border-color: rgba(255, 255, 255, 0.5); }

.search-box input {
    flex: 1;
    background: transparent;
    border: none;
    padding: 12px 16px;
    color: #fff;
    font-size: 0.82rem;
    letter-spacing: 0.06em;
    outline: none;
    font-family: inherit;
}

.search-box input::placeholder { color: #5a5b60; }

.search-box button {
    background: transparent;
    border: none;
    border-left: 1px solid var(--line-light);
    padding: 0 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.35s ease;
}

.search-box button:hover { background: var(--red); }
.search-box button svg { width: 16px; height: 16px; fill: #fff; }

.footer-bottom {
    padding: 24px 0;
    text-align: center;
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    color: #5a5b60;
}

.footer-bottom a { color: #5a5b60; }
.footer-bottom a:hover { color: #999; }

/* ============ 浮动侧栏 ============ */
.sidebar {
    position: fixed;
    right: 24px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.sidebar-item {
    width: 46px; height: 46px;
    background: rgba(255, 255, 255, 0.9);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border: 1px solid var(--line-soft);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.4s var(--ease);
    position: relative;
}

.sidebar-item:hover { background: var(--red); border-color: var(--red); transform: translateX(-4px); }
.sidebar-item svg { width: 19px; height: 19px; fill: var(--text); transition: fill 0.3s ease; }
.sidebar-item:hover svg { fill: #fff; }

.sidebar-item .tooltip {
    position: absolute;
    right: 58px;
    top: 50%;
    transform: translateY(-50%) translateX(6px);
    background: var(--ink);
    color: #fff;
    padding: 8px 16px;
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.35s var(--ease);
}

.sidebar-item:hover .tooltip { opacity: 1; visibility: visible; transform: translateY(-50%) translateX(0); }

/* ============ 子页面 Banner ============ */
.page-banner {
    height: clamp(380px, 52vh, 480px);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--ink);
    position: relative;
    overflow: hidden;
}

.page-banner img {
    position: absolute;
    inset: 0;
    width: 100%; height: 100%;
    object-fit: cover;
    opacity: 0.45;
}

.page-banner::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(11,11,12,0.5) 0%, rgba(11,11,12,0.2) 50%, rgba(11,11,12,0.65) 100%);
}

.page-banner-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: #fff;
    padding-top: var(--header-h);
}

.page-banner-content h1 {
    font-family: var(--serif);
    font-size: clamp(2.2rem, 5vw, 3.6rem);
    font-weight: 600;
    letter-spacing: 0.2em;
    margin-bottom: 16px;
}

.page-banner-content p {
    font-size: 0.75rem;
    letter-spacing: 0.5em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.55);
}

/* 面包屑 */
.breadcrumb {
    padding: 18px 0;
    background: var(--white);
    border-bottom: 1px solid var(--line-soft);
}

.breadcrumb-inner {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 clamp(20px, 4vw, 56px);
    font-size: 0.75rem;
    letter-spacing: 0.16em;
    color: var(--text-3);
}

.breadcrumb-inner a { color: var(--text-3); }
.breadcrumb-inner a:hover { color: var(--red); }
.breadcrumb-inner span { margin: 0 10px; }

/* ============ 关于页 ============ */
.about-content {
    max-width: 1080px;
    margin: 0 auto;
    padding: clamp(60px, 8vw, 100px) clamp(20px, 4vw, 40px);
}

.about-content h2 {
    font-family: var(--serif);
    font-size: clamp(1.5rem, 2.6vw, 1.9rem);
    font-weight: 600;
    letter-spacing: 0.12em;
    margin-bottom: 26px;
    color: var(--text);
    padding-left: 22px;
    border-left: 3px solid var(--red);
    line-height: 1.4;
}

.about-content p {
    font-size: 0.98rem;
    line-height: 2.2;
    letter-spacing: 0.04em;
    color: var(--text-2);
    margin-bottom: 20px;
}

.about-global { margin: clamp(50px, 7vw, 80px) 0; }

.about-global-items {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
    margin-top: 36px;
}

.about-global-item {
    text-align: center;
    padding: 34px 16px;
    background: var(--white);
    transition: all 0.45s var(--ease);
}

.about-global-item:hover { background: var(--ink); }

.about-global-item h3 {
    font-family: var(--serif);
    font-size: 1.05rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    margin-bottom: 8px;
    transition: color 0.35s ease;
}

.about-global-item:hover h3 { color: #fff; }

.about-global-item p {
    font-size: 0.75rem;
    letter-spacing: 0.14em;
    color: var(--text-3);
    margin: 0;
}

/* 时间轴 */
.timeline { position: relative; padding: 40px 0; }

.timeline-line {
    position: absolute;
    top: 0; bottom: 0;
    left: 50%;
    width: 1px;
    background: var(--line);
    transform: translateX(-50%);
}

.timeline-items { display: flex; flex-direction: column; gap: 44px; }

.timeline-item { display: flex; align-items: center; gap: 34px; position: relative; }
.timeline-item:nth-child(even) { flex-direction: row-reverse; }

.timeline-item::before {
    content: '';
    position: absolute;
    left: 50%; top: 50%;
    width: 9px; height: 9px;
    background: var(--red);
    transform: translate(-50%, -50%) rotate(45deg);
    z-index: 2;
}

.timeline-year {
    font-family: var(--sans);
    font-size: 1.7rem;
    font-weight: 300;
    letter-spacing: 0.06em;
    color: var(--red);
    min-width: 110px;
    text-align: center;
}

.timeline-content {
    flex: 1;
    background: var(--white);
    border: 1px solid var(--line-soft);
    padding: 22px 28px;
    transition: all 0.45s var(--ease);
}

.timeline-content:hover { border-color: var(--ink); transform: translateY(-3px); }

.timeline-content h4 {
    font-family: var(--serif);
    font-size: 1.05rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    margin-bottom: 6px;
}

.timeline-content p { font-size: 0.85rem; color: var(--text-3); margin: 0; line-height: 1.8; }

/* 文化卡片 */
.culture-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
    margin-top: 40px;
}

.culture-card {
    text-align: center;
    padding: clamp(36px, 4vw, 52px) 30px;
    background: var(--white);
    transition: background 0.45s var(--ease);
}

.culture-card:hover { background: var(--paper); }

.culture-card h3 {
    font-family: var(--serif);
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: 0.3em;
    color: var(--red);
    margin-bottom: 18px;
}

.culture-card p {
    font-size: 0.9rem;
    color: var(--text-2);
    line-height: 2;
    letter-spacing: 0.05em;
}

/* ============ 联系页 ============ */
.contact-section { padding: clamp(60px, 8vw, 100px) 0; }

.contact-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: clamp(44px, 6vw, 90px);
    max-width: 1200px;
    margin: 0 auto;
}

.contact-form h2, .contact-info h2 {
    font-family: var(--serif);
    font-size: 1.6rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    margin-bottom: 34px;
    padding-left: 20px;
    border-left: 3px solid var(--red);
}

.form-group { margin-bottom: 24px; }

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-size: 0.78rem;
    letter-spacing: 0.2em;
    color: var(--text-2);
}

.form-group label .required { color: var(--red); }

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 13px 16px;
    border: 1px solid var(--line);
    border-radius: 0;
    background: var(--white);
    font-size: 0.92rem;
    font-family: inherit;
    letter-spacing: 0.04em;
    transition: all 0.35s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--ink);
    outline: none;
    box-shadow: inset 0 -2px 0 var(--red);
}

.form-group textarea { resize: vertical; min-height: 130px; }

.form-tip { font-size: 0.78rem; letter-spacing: 0.1em; color: var(--text-3); margin-top: 18px; }

.contact-info-item { display: flex; gap: 18px; margin-bottom: 32px; }

.contact-info-item-icon {
    width: 48px; height: 48px;
    border: 1px solid var(--line);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.4s var(--ease);
}

.contact-info-item:hover .contact-info-item-icon { background: var(--red); border-color: var(--red); }
.contact-info-item-icon svg { width: 20px; height: 20px; fill: var(--red); transition: fill 0.3s ease; }
.contact-info-item:hover .contact-info-item-icon svg { fill: #fff; }

.contact-info-item h4 { font-size: 0.92rem; letter-spacing: 0.14em; margin-bottom: 6px; }
.contact-info-item p { font-size: 0.88rem; color: var(--text-2); line-height: 1.9; }

/* ============ 进入动画系统 ============ */
.fade-in,
[data-reveal] {
    opacity: 0;
    transform: translateY(36px);
    transition: opacity 1s var(--ease), transform 1s var(--ease);
}

.fade-in.visible,
[data-reveal].revealed {
    opacity: 1;
    transform: translateY(0);
}

[data-delay="1"] { transition-delay: 0.12s; }
[data-delay="2"] { transition-delay: 0.24s; }
[data-delay="3"] { transition-delay: 0.36s; }
[data-delay="4"] { transition-delay: 0.48s; }
[data-delay="5"] { transition-delay: 0.6s; }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    .fade-in, [data-reveal] { opacity: 1; transform: none; }
}

/* ============ 响应式 ============ */
@media (max-width: 1200px) {
    .products-grid { grid-template-columns: repeat(3, 1fr); }
    .footer-links-col { grid-template-columns: repeat(2, 1fr); }
    .hero-side { display: none; }
}

@media (max-width: 992px) {
    .nav {
        position: fixed;
        top: 0; right: -100%;
        width: 300px;
        height: 100vh;
        background: rgba(255, 255, 255, 0.97);
        -webkit-backdrop-filter: blur(20px);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: flex-start;
        padding: 90px 28px 28px;
        transition: right 0.45s var(--ease);
        box-shadow: -1px 0 0 var(--line-soft);
    }

    .nav.active { right: 0; }
    .nav-item { width: 100%; }

    .nav-link {
        color: var(--text) !important;
        width: 100%;
        padding: 15px 0;
        border-bottom: 1px solid var(--line-soft);
        font-size: 0.9rem;
    }

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

    .dropdown {
        position: static;
        transform: none;
        opacity: 1;
        visibility: visible;
        box-shadow: none;
        border: none;
        min-width: 100%;
        padding: 0 0 0 20px;
        display: none;
        background: transparent;
        -webkit-backdrop-filter: none;
        backdrop-filter: none;
    }

    .dropdown::before { display: none; }
    .nav-item:hover .dropdown, .nav-item.active .dropdown { display: block; }

    .menu-toggle { display: flex; }
    .lang-switch { display: none; }

    .hero-content { padding-bottom: 130px; }
    .hero-meta-inner { font-size: 0.62rem; letter-spacing: 0.14em; }
    .hero-meta-item:nth-child(2) { display: none; }

    .intro-grid { grid-template-columns: 1fr; }
    .intro-sticky { position: static; }

    .sec-head { flex-direction: column; align-items: flex-start; gap: 22px; }
    .sec-head-right { text-align: left; max-width: 100%; }

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

    .footer-main { grid-template-columns: 1fr; gap: 36px; }
    .footer-links-col { grid-template-columns: repeat(2, 1fr); }
    .footer-brand-slogan { display: none; }

    .contact-grid { grid-template-columns: 1fr; }
    .culture-grid { grid-template-columns: 1fr; }
    .about-global-items { grid-template-columns: repeat(2, 1fr); }
    .sidebar { display: none; }

    .timeline-line { left: 14px; }
    .timeline-item { flex-direction: row !important; padding-left: 44px; }
    .timeline-item::before { left: 14px; }
    .timeline-year { position: absolute; left: 0; top: -30px; font-size: 1.2rem; min-width: auto; }

    .news-list-item { grid-template-columns: 1fr; gap: 16px; }
    .news-list-item .thumb { width: 100%; height: 180px; }
}

@media (max-width: 576px) {
    .products-grid { grid-template-columns: 1fr; }
    .about-global-items { grid-template-columns: 1fr; }
    .stats { grid-template-columns: 1fr; }
    .stat:nth-child(odd) { border-right: none; padding-right: 0; }
    .stat:nth-child(even) { padding-left: 0; }
    .hero-title { letter-spacing: 0.04em; }
    .brand-slide-content h2 { font-size: 2rem; }
    .marquee-seg span { font-size: 0.9rem; padding: 0 22px; }
}