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

:root {
    --c-primary: #0a2540;
    --c-primary-2: #1e3a8a;
    --c-accent: #2563eb;
    --c-gold: #c9a961;
    --c-gold-soft: #e8d5a0;
    --c-text: #1a1a2e;
    --c-text-soft: #4a5568;
    --c-text-mute: #718096;
    --c-bg: #eef2f8;
    --c-bg-soft: #f5f8fc;
    --c-border: #e2e8f0;
    --shadow-sm: 0 2px 8px rgba(10, 37, 64, 0.06);
    --shadow-md: 0 8px 30px rgba(10, 37, 64, 0.08);
    --shadow-lg: 0 20px 60px rgba(10, 37, 64, 0.12);
    --radius: 14px;
    --radius-lg: 22px;
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --font: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
    --font-en: "Inter", "Helvetica Neue", Arial, sans-serif;
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--font);
    color: var(--c-text);
    line-height: 1.75;
    background: var(--c-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* ===================== 顶部导航 ===================== */
.header {
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    height: 76px;
    background: #ffffff;
    border-bottom: 1px solid rgba(232, 237, 243, 0.8);
    z-index: 1000;
    transition: box-shadow 0.4s var(--ease);
}

.header.scrolled {
    box-shadow: var(--shadow-sm);
}

.header-container {
    max-width: 1280px;
    margin: 0 auto;
    height: 100%;
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 14px;
}

.logo-icon {
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: transform 0.5s var(--ease-out);
    cursor: pointer;
    perspective: 400px;
}

.logo-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    transition: transform 0.5s var(--ease-out), filter 0.4s var(--ease);
}

/* 鼠标悬停时 logo 整体微动效 */
.logo:hover .logo-icon {
    transform: scale(1.06);
}

.logo:hover .logo-img {
    filter: drop-shadow(0 6px 14px rgba(30, 58, 138, 0.18));
}

/* 底部 logo 在深色背景上加白色底托 */
.footer .logo-icon {
    width: 64px;
    height: 64px;
    background: #fff;
    border-radius: 12px;
    padding: 6px;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
}

.footer .logo-img {
    filter: none;
}

/* logo 文字悬停微动 */
.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
    transition: transform 0.3s var(--ease);
}

.logo:hover .logo-text {
    transform: translateX(2px);
}

.logo-cn {
    font-size: 17px;
    font-weight: 700;
    color: var(--c-primary);
    letter-spacing: 2px;
}

.logo-en {
    font-family: var(--font-en);
    font-size: 10.5px;
    color: var(--c-text-mute);
    letter-spacing: 1.5px;
    margin-top: 3px;
}

.nav {
    display: flex;
    gap: 38px;
}

.nav a {
    font-size: 15px;
    color: var(--c-text-soft);
    font-weight: 500;
    position: relative;
    padding: 8px 0;
    transition: color 0.3s var(--ease);
}

.nav a::after {
    content: "";
    position: absolute;
    left: 50%; bottom: 0;
    width: 0; height: 2px;
    background: linear-gradient(90deg, var(--c-accent), var(--c-gold));
    transition: all 0.35s var(--ease-out);
    transform: translateX(-50%);
}

.nav a:hover { color: var(--c-primary); }
.nav a:hover::after { width: 100%; }

/* ===================== Hero 横幅 ===================== */
.hero {
    min-height: 700px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    margin-top: 76px;
    padding: 40px 24px 70px;
    overflow: hidden;
    background: #27416e;
}


/* 扫描光带 */
.hero-lines {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.hero-lines span {
    position: absolute;
    top: 0;
    width: 1px;
    height: 100%;
    background: linear-gradient(180deg, transparent 0%, rgba(96, 165, 250, 0.25) 40%, rgba(96, 165, 250, 0.5) 50%, rgba(96, 165, 250, 0.25) 60%, transparent 100%);
    animation: scanLine 5s linear infinite;
}

@keyframes scanLine {
    0% { transform: translateY(-100%); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(100%); opacity: 0; }
}

/* 数据节点 */
.hero-nodes {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero-nodes em {
    position: absolute;
    width: 10px; height: 10px;
    border-radius: 50%;
    background: var(--c-accent);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15), 0 0 16px rgba(37, 99, 235, 0.4);
    animation: nodePulse 3s ease-in-out infinite;
}

.hero-nodes em:nth-child(odd) { background: var(--c-gold); box-shadow: 0 0 0 3px rgba(201, 169, 97, 0.2), 0 0 16px rgba(201, 169, 97, 0.5); animation-delay: 1.5s; }

@keyframes nodePulse {
    0%, 100% { transform: scale(1); opacity: 0.7; }
    50% { transform: scale(1.3); opacity: 1; }
}

.hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    opacity: 0.4;
    pointer-events: none;
}

.hero-orb.o1 { width: 460px; height: 460px; background: #93c5fd; top: -15%; left: -10%; animation: float1 14s ease-in-out infinite; }
.hero-orb.o2 { width: 340px; height: 340px; background: #fde68a; bottom: -8%; right: -6%; animation: float2 16s ease-in-out infinite; }
.hero-orb.o3 { width: 280px; height: 280px; background: #a5b4fc; top: 35%; left: 50%; animation: float1 18s ease-in-out infinite reverse; opacity: 0.3; }

@keyframes float1 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(40px, 30px); }
}
@keyframes float2 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-30px, -40px); }
}

.hero-content {
    position: relative;
    z-index: 4;
    max-width: 920px;
}

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 22px;
    border: 1px solid rgba(201, 169, 97, 0.4);
    border-radius: 50px;
    font-family: var(--font-en);
    font-size: 12px;
    letter-spacing: 3px;
    color: var(--c-gold-soft);
    margin-bottom: 32px;
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
}

.hero-eyebrow::before {
    content: "";
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--c-gold);
    box-shadow: 0 0 10px var(--c-gold);
}

.hero h1 {
    font-size: clamp(36px, 5.5vw, 68px);
    font-weight: 700;
    letter-spacing: 4px;
    line-height: 1.2;
    margin-bottom: 18px;
    background: linear-gradient(135deg, #ffffff 0%, #93c5fd 55%, #c9a961 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-en-name {
    font-family: var(--font-en);
    font-size: clamp(14px, 1.6vw, 19px);
    color: var(--c-gold-soft);
    letter-spacing: 1.5px;
    margin-bottom: 28px;
    font-weight: 400;
}

.hero-tagline {
    font-size: clamp(16px, 2vw, 22px);
    color: #cbd5e1;
    font-weight: 400;
    margin-bottom: 44px;
    letter-spacing: 2px;
}

.hero-tags {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 14px;
}

.hero-tag {
    padding: 9px 22px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 50px;
    font-size: 14px;
    color: #e2e8f0;
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
    transition: all 0.3s var(--ease);
}

.hero-tag:hover {
    background: rgba(201, 169, 97, 0.15);
    border-color: rgba(201, 169, 97, 0.5);
    color: var(--c-gold-soft);
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(201, 169, 97, 0.2);
}

.hero-scroll {
    position: absolute;
    bottom: 36px; left: 50%;
    transform: translateX(-50%);
    z-index: 4;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 11px;
    letter-spacing: 2px;
    font-family: var(--font-en);
}

.hero-scroll-line {
    width: 1px;
    height: 50px;
    background: linear-gradient(180deg, transparent, var(--c-gold));
    position: relative;
    overflow: hidden;
}

.hero-scroll-line::after {
    content: "";
    position: absolute;
    top: -50%; left: 0;
    width: 100%; height: 50%;
    background: var(--c-gold-soft);
    animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
    0% { top: -50%; }
    100% { top: 100%; }
}

/* ===================== 通用区块 ===================== */
.section { padding: 120px 24px; scroll-margin-top: 100px; }
.container { max-width: 1280px; margin: 0 auto; }

.section-title {
    text-align: center;
    margin-bottom: 72px;
}

.section-eyebrow {
    display: block;
    font-family: var(--font-en);
    font-size: 12px;
    letter-spacing: 4px;
    color: var(--c-gold);
    margin-bottom: 14px;
    text-transform: uppercase;
    font-weight: 600;
}

.section-title h2 {
    font-size: clamp(28px, 3.5vw, 42px);
    color: var(--c-primary);
    font-weight: 700;
    letter-spacing: 2px;
    line-height: 1.3;
}

.section-title p {
    color: var(--c-text-mute);
    font-size: 16px;
    margin-top: 18px;
    font-weight: 300;
}

/* ===================== 关于我们 ===================== */
.about { background: var(--c-bg-soft); position: relative; }

.about-content {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 70px;
    align-items: center;
}

.about-text {
    position: relative;
    padding-left: 28px;
}

.about-text::before {
    content: "";
    position: absolute;
    left: 0; top: 8px;
    width: 3px; height: 60px;
    background: linear-gradient(180deg, var(--c-gold), var(--c-accent));
    border-radius: 2px;
}

.about-text p {
    color: var(--c-text-soft);
    font-size: 16px;
    margin-bottom: 20px;
    text-align: justify;
    line-height: 2.1;
}

.about-text p:last-child { margin-bottom: 0; }

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 22px;
}

.stat-card {
    background: #fff;
    padding: 34px 28px;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--c-border);
    transition: all 0.4s var(--ease);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 3px;
    background: linear-gradient(90deg, var(--c-gold), var(--c-accent));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s var(--ease);
}

.stat-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}

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

.stat-number {
    font-family: var(--font-en);
    font-size: 38px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-accent) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 6px;
    line-height: 1.1;
}

.stat-label {
    font-size: 13px;
    color: var(--c-text-mute);
    letter-spacing: 1px;
}

/* ===================== 业务领域 ===================== */
.business-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.business-card {
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: 38px 32px;
    transition: all 0.45s var(--ease-out);
    position: relative;
    overflow: hidden;
    cursor: default;
}

.business-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(37, 99, 235, 0.12);
    border-color: rgba(37, 99, 235, 0.2);
    background: linear-gradient(160deg, #fbfdff 0%, #f4f8ff 100%);
}

.business-icon {
    width: 56px; height: 56px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(201, 169, 97, 0.1) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.08);
    transition: all 0.4s var(--ease);
}

.business-card:hover .business-icon {
    transform: rotate(-6deg) scale(1.05);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.2) 0%, rgba(201, 169, 97, 0.2) 100%);
    box-shadow: 0 6px 18px rgba(37, 99, 235, 0.15);
}

.business-icon svg { width: 28px; height: 28px; color: var(--c-accent); }

.business-body h3 {
    font-size: 21px;
    color: var(--c-primary);
    margin-bottom: 14px;
    font-weight: 600;
    letter-spacing: 1px;
}

.business-body p {
    font-size: 14.5px;
    color: var(--c-text-soft);
    line-height: 1.85;
}

/* ===================== 经营范围 ===================== */
.scope {
    background: linear-gradient(135deg, #e6edf7 0%, #f0f5fc 50%, #f5f8fc 100%);
    color: var(--c-primary);
    position: relative;
    overflow: hidden;
}

.scope::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(30, 58, 138, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(30, 58, 138, 0.04) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, #000 0%, transparent 85%);
    -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, #000 0%, transparent 85%);
    pointer-events: none;
}

.scope::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 45% 40% at 10% 20%, rgba(37, 99, 235, 0.12) 0%, transparent 70%),
        radial-gradient(ellipse 45% 40% at 90% 80%, rgba(201, 169, 97, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.scope .container { position: relative; z-index: 2; }

.scope .section-eyebrow { color: var(--c-gold); }
.scope .section-title h2 { color: var(--c-primary); }
.scope .section-title p { color: var(--c-text-mute); }

.scope-wrap {
    max-width: 980px;
    margin: 0 auto;
}

.scope-block {
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid rgba(30, 58, 138, 0.08);
    border-radius: var(--radius-lg);
    padding: 48px 56px;
    backdrop-filter: blur(12px);
    transition: all 0.4s var(--ease);
    position: relative;
    box-shadow: 0 4px 24px rgba(10, 37, 64, 0.06);
}

.scope-block::before {
    content: "";
    position: absolute;
    top: 0; left: 50%;
    width: 60%; height: 2px;
    background: linear-gradient(90deg, transparent, var(--c-accent), var(--c-gold), transparent);
    transform: translateX(-50%);
}

.scope-block:hover {
    background: rgba(255, 255, 255, 0.95);
    border-color: rgba(37, 99, 235, 0.18);
    box-shadow: 0 12px 32px rgba(37, 99, 235, 0.1);
    transform: translateY(-3px);
}

.scope-block h3 {
    font-size: 20px;
    color: var(--c-primary);
    margin-bottom: 32px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(30, 58, 138, 0.08);
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    letter-spacing: 2px;
    justify-content: center;
}

.scope-block h3::before {
    content: "";
    width: 4px; height: 20px;
    background: linear-gradient(180deg, var(--c-gold), var(--c-accent));
    border-radius: 2px;
}

.scope-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 6px 40px;
}

.scope-list li {
    padding: 11px 0 11px 26px;
    position: relative;
    color: var(--c-text-soft);
    font-size: 15px;
    transition: color 0.3s, padding-left 0.3s;
}

.scope-list li::before {
    content: "";
    position: absolute;
    left: 6px; top: 50%;
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--c-accent);
    transform: translateY(-50%);
    transition: all 0.3s;
}

.scope-list li:hover {
    color: var(--c-accent);
    padding-left: 32px;
}

.scope-list li:hover::before {
    background: var(--c-gold);
    box-shadow: 0 0 8px var(--c-gold);
}

.scope-note {
    text-align: center;
    margin: 40px auto 0;
    max-width: 900px;
    padding: 22px 36px;
    color: var(--c-primary-2);
    font-size: 15px;
    line-height: 1.9;
    border: 1px solid rgba(201, 169, 97, 0.3);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(8px);
}

/* ===================== 经营理念 ===================== */
.philosophy { text-align: center; background: var(--c-bg-soft); }

.philosophy-values {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 26px;
}

.value-card {
    padding: 50px 24px 40px;
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.4s var(--ease-out);
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}

.value-card::before {
    content: "";
    position: absolute;
    top: 0; left: 50%;
    width: 0; height: 4px;
    background: linear-gradient(90deg, var(--c-gold), var(--c-accent));
    transform: translateX(-50%);
    transition: width 0.4s var(--ease);
}

.value-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(37, 99, 235, 0.1);
    border-color: rgba(37, 99, 235, 0.18);
    background: linear-gradient(160deg, #fbfdff 0%, #f4f8ff 100%);
}

.value-card:hover::before { width: 80%; }

.value-char {
    font-family: "STSong", "SimSun", serif;
    font-size: 26px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-accent) 60%, var(--c-gold) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 16px;
    line-height: 1;
}

.value-desc {
    font-size: 16px;
    color: var(--c-text-mute);
    letter-spacing: 1px;
}

/* ===================== 底部 ===================== */
.footer {
    background: linear-gradient(180deg, #0f1e35 0%, #0a1628 100%);
    color: #94a3b8;
    padding: 48px 24px 20px;
    position: relative;
    overflow: hidden;
    border-top: none;
}

.footer::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--c-accent), var(--c-gold), transparent);
}

.footer::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(148, 163, 184, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148, 163, 184, 0.04) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse 65% 55% at 50% 100%, #000 0%, transparent 85%);
    -webkit-mask-image: radial-gradient(ellipse 65% 55% at 50% 100%, #000 0%, transparent 85%);
    pointer-events: none;
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 28px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.12);
    position: relative;
    z-index: 2;
}

.footer-brand .logo-cn { color: #fff; }
.footer-brand .logo-en { color: var(--c-gold-soft); }

.footer-en-name {
    font-family: var(--font-en);
    font-size: 12px;
    color: var(--c-gold-soft);
    margin-top: 8px;
    letter-spacing: 0.8px;
}

.footer-brand p {
    margin-top: 16px;
    font-size: 13.5px;
    color: #94a3b8;
    line-height: 1.8;
    max-width: 400px;
}

.footer-info {
    margin-top: 18px;
    display: flex;
    flex-direction: column;
    gap: 7px;
}

.footer-info-item {
    display: flex;
    align-items: baseline;
    gap: 12px;
    font-size: 13px;
}

.footer-info-label {
    color: var(--c-gold-soft);
    font-family: var(--font-en);
    letter-spacing: 0.5px;
    min-width: 72px;
    flex-shrink: 0;
}

.footer-info-value {
    color: #cbd5e1;
}

.footer-desc {
    margin-top: 16px;
    font-size: 13.5px;
    color: #94a3b8;
    line-height: 1.8;
    max-width: 380px;
}

.footer-col h4 {
    color: #fff;
    font-size: 15px;
    margin-bottom: 16px;
    font-weight: 600;
    letter-spacing: 1px;
    position: relative;
    padding-left: 14px;
}

.footer-col h4::before {
    content: "";
    position: absolute;
    left: 0; top: 50%;
    width: 4px; height: 14px;
    background: linear-gradient(180deg, var(--c-accent), var(--c-gold));
    transform: translateY(-50%);
    border-radius: 2px;
}

.footer-col li {
    padding: 5px 0;
    font-size: 13.5px;
    color: #94a3b8;
    cursor: default;
    transition: color 0.3s, transform 0.3s;
}

.footer-col li:hover {
    color: var(--c-gold-soft);
    transform: translateX(4px);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    position: relative;
    z-index: 2;
}

.footer-copy {
    font-family: var(--font-en);
    font-size: 12.5px;
    color: #64748b;
    margin-bottom: 8px;
}

.footer-icp {
    display: flex;
    gap: 6px;
    justify-content: center;
    align-items: center;
}

.footer-icp a,
.footer-icp span {
    font-size: 12.5px;
    color: #64748b;
    transition: color 0.3s;
}

.footer-icp a:hover { color: var(--c-gold-soft); }

.footer-company {
    margin-top: 6px;
    color: #94a3b8;
    font-size: 13px;
    letter-spacing: 1px;
}

/* ===================== 滚动渐入动画 ===================== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

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

.reveal.d1 { transition-delay: 0.1s; }
.reveal.d2 { transition-delay: 0.2s; }
.reveal.d3 { transition-delay: 0.3s; }
.reveal.d4 { transition-delay: 0.4s; }
.reveal.d5 { transition-delay: 0.5s; }

/* ===================== 严正声明弹窗 ===================== */
.notice-modal {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s var(--ease), visibility 0.4s;
}

.notice-modal.show {
    opacity: 1;
    visibility: visible;
}

.notice-overlay {
    position: absolute;
    inset: 0;
    background: rgba(5, 13, 28, 0.75);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.notice-dialog {
    position: relative;
    width: 100%;
    max-width: 720px;
    max-height: 86vh;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 20px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid rgba(201, 169, 97, 0.3);
    transform: translateY(30px) scale(0.96);
    transition: transform 0.45s var(--ease-out);
}

.notice-modal.show .notice-dialog {
    transform: translateY(0) scale(1);
}

.notice-dialog::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    /* background: linear-gradient(90deg, var(--c-accent), var(--c-gold), var(--c-accent)); */
}

.notice-header {
    padding: 32px 36px 20px;
    text-align: center;
    border-bottom: 1px solid var(--c-border);
    background: linear-gradient(180deg, #f0f5ff 0%, transparent 100%);
}

.notice-badge {
    display: inline-block;
    padding: 6px 18px;
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-accent) 100%);
    color: #fff;
    font-size: 13px;
    letter-spacing: 3px;
    border-radius: 50px;
    margin-bottom: 16px;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}

.notice-title {
    font-size: clamp(18px, 2.4vw, 24px);
    color: var(--c-primary);
    font-weight: 700;
    line-height: 1.5;
    letter-spacing: 1px;
}

.notice-body {
    padding: 28px 36px;
    overflow-y: auto;
    flex: 1;
}

.notice-body::-webkit-scrollbar { width: 6px; }
.notice-body::-webkit-scrollbar-track { background: transparent; }
.notice-body::-webkit-scrollbar-thumb { background: rgba(37, 99, 235, 0.2); border-radius: 3px; }

.notice-lead {
    color: var(--c-text-soft);
    font-size: 15px;
    line-height: 1.9;
    margin-bottom: 24px;
    text-indent: 2em;
}

.notice-clause {
    margin-bottom: 22px;
}

.notice-clause h3 {
    font-size: 16px;
    color: var(--c-primary);
    font-weight: 600;
    margin-bottom: 10px;
    padding-left: 14px;
    position: relative;
}

.notice-clause h3::before {
    content: "";
    position: absolute;
    left: 0; top: 50%;
    width: 4px; height: 16px;
    background: linear-gradient(180deg, var(--c-accent), var(--c-gold));
    transform: translateY(-50%);
    border-radius: 2px;
}

.notice-clause p {
    color: var(--c-text-soft);
    font-size: 14.5px;
    line-height: 1.9;
    padding-left: 14px;
}

.notice-end {
    text-align: center;
    font-size: 16px;
    color: var(--c-primary);
    font-weight: 600;
    margin: 28px 0 12px;
    letter-spacing: 2px;
}

.notice-sign {
    text-align: right;
    color: var(--c-text-soft);
    font-size: 14.5px;
    line-height: 2;
    padding-right: 14px;
}

.notice-footer {
    padding: 20px 36px 28px;
    border-top: 1px solid var(--c-border);
    background: #f8fafc;
    text-align: center;
}

.notice-close {
    padding: 13px 40px;
    border: none;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s var(--ease);
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-accent) 100%);
    color: #fff;
    box-shadow: 0 6px 18px rgba(37, 99, 235, 0.25);
    min-width: 240px;
    position: relative;
}

.notice-close:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 10px 26px rgba(37, 99, 235, 0.35);
}

.notice-close:active:not(:disabled) {
    transform: translateY(0);
}

.notice-close:disabled {
    background: linear-gradient(135deg, #94a3b8 0%, #cbd5e1 100%);
    cursor: not-allowed;
    box-shadow: none;
    opacity: 0.85;
}

.notice-close .notice-countdown { display: inline; }
.notice-close .notice-done { display: none; }
.notice-close:not(:disabled) .notice-countdown { display: none; }
.notice-close:not(:disabled) .notice-done { display: inline; }

@media (max-width: 968px) {
    .notice-header { padding: 24px 20px 16px; }
    .notice-body { padding: 20px; }
    .notice-footer { padding: 16px 20px 22px; }
    .notice-close { min-width: 200px; padding: 12px 28px; }
}

/* ===================== 响应式 ===================== */
/* 汉堡菜单按钮 */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 6px;
    z-index: 1001;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--c-primary);
    border-radius: 2px;
    transition: all 0.3s var(--ease);
}

.menu-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}
.menu-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 968px) {
    .menu-toggle { display: flex; }

    .nav {
        position: fixed;
        top: 76px;
        right: 0;
        width: 240px;
        height: calc(100vh - 76px);
        background: #fff;
        box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
        flex-direction: column;
        gap: 0;
        padding: 20px 0;
        transform: translateX(100%);
        transition: transform 0.35s var(--ease-out);
        z-index: 999;
    }

    .nav.open {
        transform: translateX(0);
    }

    .nav a {
        padding: 16px 28px;
        border-bottom: 1px solid var(--c-border);
        font-size: 15px;
    }

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

@media (max-width: 968px) {
    .header-container { padding: 0 20px; }

    .about-content { grid-template-columns: 1fr; gap: 40px; }

    .scope-block { padding: 36px 28px; }
    .scope-list { grid-template-columns: 1fr; gap: 4px; }

    .business-grid { grid-template-columns: 1fr; }
    .philosophy-values { grid-template-columns: repeat(2, 1fr); }

    .footer-container { grid-template-columns: 1fr; gap: 32px; }
    .section { padding: 80px 20px; }
    .section-title { margin-bottom: 50px; }
}

@media (max-width: 480px) {
    .philosophy-values { grid-template-columns: 1fr; }
    .about-stats { grid-template-columns: 1fr; }
    .logo-en { display: none; }
}