/* ===========================================
   成都硅漪科技有限公司 - 官网样式
   主色: #9366D9 | 浅紫: #BFA8E8 | 深紫: #6940B0
   =========================================== */

:root {
    --color-primary: #9366D9;
    --color-light: #BFA8E8;
    --color-dark: #6940B0;
    --color-bg: #ffffff;
    --color-bg-soft: #faf8fd;
    --color-text: #1a1a2e;
    --color-text-soft: #555568;
    --color-border: #ece9f5;
    --gradient-primary: linear-gradient(135deg, #9366D9 0%, #BFA8E8 100%);
    --gradient-soft: linear-gradient(135deg, #f3edff 0%, #faf8fd 100%);
    --gradient-hero: linear-gradient(135deg, #f3edff 0%, #ffffff 50%, #faf8fd 100%);
    --shadow-sm: 0 2px 8px rgba(147, 102, 217, 0.08);
    --shadow-md: 0 8px 24px rgba(147, 102, 217, 0.12);
    --shadow-lg: 0 16px 48px rgba(147, 102, 217, 0.18);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --transition: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    color: var(--color-text);
    line-height: 1.6;
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

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

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

/* ============== 导航栏 ============== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

.navbar.scrolled {
    border-bottom-color: var(--color-border);
    box-shadow: var(--shadow-sm);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.logo-text {
    line-height: 1.2;
}

.logo-name {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text);
}

.logo-sub {
    font-size: 11px;
    color: var(--color-primary);
    font-weight: 500;
    letter-spacing: 0.5px;
}

.nav-menu {
    display: flex;
    gap: 36px;
    align-items: center;
}

.nav-menu a {
    font-size: 15px;
    color: var(--color-text-soft);
    font-weight: 500;
    position: relative;
}

.nav-menu a:hover {
    color: var(--color-primary);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition);
}

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

.nav-cta {
    padding: 8px 20px;
    background: var(--gradient-primary);
    color: #fff !important;
    border-radius: 100px;
    box-shadow: var(--shadow-sm);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--color-primary);
    cursor: pointer;
}

/* ============== Hero 首屏 ============== */
.hero {
    position: relative;
    padding: 140px 0 100px;
    background: var(--gradient-hero);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 20% 30%, rgba(147, 102, 217, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(191, 168, 232, 0.2) 0%, transparent 40%);
    pointer-events: none;
}

.hero-inner {
    position: relative;
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(147, 102, 217, 0.1);
    color: var(--color-primary);
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

.hero-title {
    font-size: 56px;
    line-height: 1.2;
    font-weight: 800;
    color: var(--color-text);
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-slogan {
    font-size: 18px;
    color: var(--color-dark);
    font-weight: 500;
    margin-bottom: 16px;
}

.hero-desc {
    font-size: 16px;
    color: var(--color-text-soft);
    margin-bottom: 32px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 56px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: 100px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-ghost {
    background: rgba(147, 102, 217, 0.08);
    color: var(--color-primary);
    border: 1px solid rgba(147, 102, 217, 0.2);
}

.btn-ghost:hover {
    background: rgba(147, 102, 217, 0.15);
}

.btn-large {
    padding: 18px 40px;
    font-size: 16px;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    padding-top: 32px;
    border-top: 1px solid var(--color-border);
}

.stat-item {
    text-align: left;
}

.stat-num {
    font-size: 32px;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: 6px;
}

.stat-num small {
    font-size: 14px;
    font-weight: 500;
    margin-left: 2px;
}

.stat-label {
    font-size: 13px;
    color: var(--color-text-soft);
}

/* Hero LOGO视觉 */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.logo-card {
    position: relative;
    width: 320px;
    height: 320px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 40px;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

.hero-logo {
    width: 100%;
    height: auto;
    object-fit: contain;
}

.logo-glow {
    position: absolute;
    inset: -20px;
    background: var(--gradient-primary);
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.3;
    z-index: -1;
}

/* ============== 通用Section ============== */
.section {
    padding: 100px 0;
}

.section-head {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 64px;
}

.section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 3px;
    margin-bottom: 16px;
}

.section-title {
    font-size: 42px;
    font-weight: 800;
    color: var(--color-text);
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.section-sub {
    font-size: 17px;
    color: var(--color-text-soft);
}

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

.about-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.about-card {
    background: #fff;
    padding: 40px 32px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--color-border);
}

.about-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-light);
}

.about-card-wide {
    grid-column: span 2;
}

.about-icon {
    font-size: 36px;
    margin-bottom: 16px;
}

.about-card h3 {
    font-size: 22px;
    color: var(--color-text);
    margin-bottom: 12px;
    font-weight: 700;
}

.about-card p {
    color: var(--color-text-soft);
    line-height: 1.8;
    font-size: 15px;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 8px;
}

.value-item {
    padding: 20px;
    background: var(--gradient-soft);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--color-primary);
}

.value-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 6px;
}

.value-desc {
    font-size: 13px;
    color: var(--color-text-soft);
    line-height: 1.6;
}

.brand-quote {
    text-align: center;
    padding: 48px 32px;
    background: var(--gradient-primary);
    color: #fff;
    border-radius: var(--radius-md);
    font-size: 19px;
    line-height: 1.8;
    font-weight: 500;
    box-shadow: var(--shadow-lg);
}

.brand-quote p {
    max-width: 800px;
    margin: 0 auto;
}

/* ============== 服务 ============== */
.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    position: relative;
    background: #fff;
    padding: 40px 32px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: var(--transition);
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

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

.service-card-featured {
    background: var(--gradient-soft);
    border-color: var(--color-light);
    transform: scale(1.02);
}

.service-card-featured:hover {
    transform: scale(1.02) translateY(-8px);
}

.service-flag {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 4px 12px;
    background: var(--color-primary);
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    border-radius: 100px;
}

.service-num {
    font-size: 48px;
    font-weight: 800;
    color: var(--color-light);
    line-height: 1;
    margin-bottom: 16px;
}

.service-icon {
    font-size: 40px;
    margin-bottom: 16px;
}

.service-card h3 {
    font-size: 22px;
    color: var(--color-text);
    margin-bottom: 12px;
    font-weight: 700;
}

.service-card p {
    color: var(--color-text-soft);
    line-height: 1.8;
    font-size: 15px;
    margin-bottom: 20px;
}

.service-list {
    list-style: none;
    border-top: 1px dashed var(--color-border);
    padding-top: 20px;
}

.service-list li {
    padding: 8px 0;
    font-size: 14px;
    color: var(--color-text-soft);
    position: relative;
    padding-left: 22px;
}

.service-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 8px;
    color: var(--color-primary);
    font-weight: 700;
}

/* ============== 解决方案 ============== */
.solutions {
    background: var(--color-bg-soft);
}

.solution-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.solution-card {
    background: #fff;
    padding: 48px 40px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.solution-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.solution-card-alt {
    background: var(--gradient-soft);
    border-color: var(--color-light);
}

.solution-tag {
    display: inline-block;
    padding: 4px 14px;
    background: var(--color-light);
    color: var(--color-dark);
    font-size: 13px;
    font-weight: 600;
    border-radius: 100px;
    margin-bottom: 20px;
}

.solution-tag-alt {
    background: var(--color-primary);
    color: #fff;
}

.solution-card h3 {
    font-size: 22px;
    color: var(--color-text);
    margin-bottom: 16px;
    font-weight: 700;
    line-height: 1.4;
}

.solution-card p {
    color: var(--color-text-soft);
    line-height: 1.8;
    font-size: 15px;
    margin-bottom: 24px;
}

.solution-features {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.feature-chip {
    padding: 6px 16px;
    background: rgba(147, 102, 217, 0.08);
    color: var(--color-primary);
    border-radius: 100px;
    font-size: 13px;
    font-weight: 500;
}

.feature-chip-alt {
    background: var(--color-primary);
    color: #fff;
}

/* ============== 联系我们 ============== */
.contact {
    padding: 80px 0 120px;
}

.contact-card {
    background: #fff;
    padding: 64px 48px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
    background-image: radial-gradient(circle at 90% 10%, rgba(147, 102, 217, 0.05) 0%, transparent 40%);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin: 48px 0;
}

.contact-item {
    text-align: center;
    padding: 24px 16px;
    background: var(--gradient-soft);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.contact-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-sm);
}

.contact-icon {
    font-size: 32px;
    margin-bottom: 12px;
}

.contact-label {
    font-size: 13px;
    color: var(--color-text-soft);
    margin-bottom: 8px;
}

.contact-value {
    display: block;
    font-size: 16px;
    font-weight: 700;
    color: var(--color-dark);
}

a.contact-value:hover {
    color: var(--color-primary);
}

.contact-cta {
    text-align: center;
    padding-top: 32px;
    border-top: 1px solid var(--color-border);
}

.contact-cta p {
    font-size: 16px;
    color: var(--color-text-soft);
    margin-bottom: 20px;
}

/* ============== 页脚 ============== */
.footer {
    background: #1a1a2e;
    color: #cfcfd9;
    padding: 64px 0 0;
}

.footer-inner {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 60px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-logo-img {
    width: 44px;
    height: 44px;
    background: #fff;
    border-radius: 8px;
    padding: 4px;
}

.footer-name {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 4px;
}

.footer-slogan {
    font-size: 13px;
    color: var(--color-light);
}

.footer-desc {
    font-size: 14px;
    line-height: 1.8;
    color: #a0a0b0;
}

.footer-cols {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.footer-col h4 {
    color: #fff;
    font-size: 15px;
    margin-bottom: 16px;
    font-weight: 600;
}

.footer-col a,
.footer-col div {
    display: block;
    color: #a0a0b0;
    font-size: 14px;
    margin-bottom: 10px;
    transition: var(--transition);
}

.footer-col a:hover {
    color: var(--color-light);
    padding-left: 4px;
}

.footer-bottom {
    padding: 24px 0;
    font-size: 13px;
    color: #6a6a7a;
}

.footer-bottom .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

/* ============== 响应式 ============== */
@media (max-width: 1024px) {
    .hero-title { font-size: 44px; }
    .section-title { font-size: 36px; }
    .hero-inner { grid-template-columns: 1fr; gap: 40px; }
    .hero-visual { order: -1; }
    .logo-card { width: 240px; height: 240px; }
    .about-grid { grid-template-columns: 1fr; }
    .about-card-wide { grid-column: span 1; }
    .service-grid { grid-template-columns: 1fr; }
    .solution-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-inner { grid-template-columns: 1fr; gap: 40px; }
    .values-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .container { padding: 0 16px; }
    .section { padding: 64px 0; }
    .hero { padding: 110px 0 64px; }
    .hero-title { font-size: 32px; }
    .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .section-title { font-size: 28px; }
    .nav-menu {
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 20px;
        gap: 16px;
        box-shadow: var(--shadow-md);
        display: none;
    }
    .nav-menu.active { display: flex; }
    .menu-toggle { display: block; }
    .hero-actions { flex-direction: column; }
    .btn { width: 100%; }
    .contact-card { padding: 40px 24px; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-cols { grid-template-columns: 1fr; gap: 24px; }
    .values-grid { grid-template-columns: 1fr; }
    .footer-bottom .container { flex-direction: column; text-align: center; }
}

/* ============== 关于老赵（创始人故事） ============== */
.founder {
    background: #faf8fd;
}

.founder-story {
    max-width: 820px;
    margin: 0 auto;
    font-size: 16px;
    line-height: 2;
    color: #4a4a5a;
}

.founder-story p {
    margin-bottom: 18px;
}

.founder-story .founder-list {
    margin: 0 0 18px 22px;
    padding: 0;
}

.founder-story .founder-list li {
    margin-bottom: 10px;
    list-style: disc;
    line-height: 1.9;
}

@media (max-width: 768px) {
    .founder-story {
        font-size: 15px;
        line-height: 1.9;
    }
}