/* 700bet - Zigzag Stack Layout (全新之字形堆叠布局) */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --electric-purple: #7C3AED;
    --lime-green: #84CC16;
    --hot-magenta: #EC4899;
    --deep-violet: #5B21B6;
    --light-gray: #F9FAFB;
    --text-dark: #111827;
}

body {
    font-family: 'Arial', 'Helvetica Neue', sans-serif;
    line-height: 1.7;
    color: var(--text-dark);
    background: var(--light-gray);
}

/* Header - Non-sticky with Zigzag */
.zigzag-header {
    background: linear-gradient(135deg, var(--electric-purple) 0%, var(--deep-violet) 100%);
    padding: 2rem 0;
    position: relative;
    overflow: hidden;
    clip-path: polygon(0 0, 100% 0, 100% 85%, 95% 100%, 90% 85%, 85% 100%, 80% 85%, 75% 100%, 70% 85%, 65% 100%, 60% 85%, 55% 100%, 50% 85%, 45% 100%, 40% 85%, 35% 100%, 30% 85%, 25% 100%, 20% 85%, 15% 100%, 10% 85%, 5% 100%, 0 85%);
    padding-bottom: 4rem;
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-brand img {
    height: 75px;
    width: auto;
    filter: drop-shadow(0 8px 20px rgba(0,0,0,0.4));
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 3rem;
    align-items: center;
}

.nav-menu a {
    color: white;
    text-decoration: none;
    font-weight: 800;
    font-size: 1.1rem;
    transition: all 0.3s;
    position: relative;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 0;
    height: 4px;
    background: var(--lime-green);
    transition: width 0.3s;
    clip-path: polygon(0 0, 100% 0, 90% 100%, 0 100%);
}

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

.nav-menu a:hover {
    color: var(--lime-green);
    transform: translateY(-3px);
}

.action-button {
    background: linear-gradient(135deg, var(--hot-magenta) 0%, #F43F5E 100%);
    color: white;
    padding: 1rem 3rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.15rem;
    transition: all 0.4s;
    box-shadow: 0 12px 35px rgba(236, 72, 153, 0.5);
    clip-path: polygon(5% 0, 100% 0, 95% 100%, 0 100%);
}

.action-button:hover {
    transform: translateY(-6px) scale(1.05);
    box-shadow: 0 18px 45px rgba(236, 72, 153, 0.7);
}

/* Hero - Zigzag Stack */
.hero-zigzag {
    position: relative;
    min-height: 700px;
    background: linear-gradient(135deg, var(--lime-green) 0%, #65A30D 100%);
    overflow: hidden;
    display: flex;
    align-items: center;
    clip-path: polygon(0 0, 100% 0, 100% 90%, 95% 100%, 90% 90%, 85% 100%, 80% 90%, 75% 100%, 70% 90%, 65% 100%, 60% 90%, 55% 100%, 50% 90%, 45% 100%, 40% 90%, 35% 100%, 30% 90%, 25% 100%, 20% 90%, 15% 100%, 10% 90%, 5% 100%, 0 90%);
    padding-bottom: 6rem;
}

.hero-zigzag::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        45deg,
        transparent,
        transparent 50px,
        rgba(255,255,255,0.05) 50px,
        rgba(255,255,255,0.05) 100px
    );
    animation: zigzag-move 20s linear infinite;
}

@keyframes zigzag-move {
    0% { transform: translateX(0) translateY(0); }
    100% { transform: translateX(100px) translateY(100px); }
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 5rem 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content h1 {
    font-size: 4.2rem;
    color: white;
    margin-bottom: 2rem;
    font-weight: 900;
    line-height: 1.1;
    text-shadow: 3px 3px 20px rgba(0,0,0,0.4);
    text-transform: uppercase;
}

.hero-content p {
    font-size: 1.5rem;
    color: rgba(255,255,255,0.95);
    margin-bottom: 3rem;
    line-height: 1.8;
    font-weight: 500;
}

.hero-visual img {
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 35px 80px rgba(0,0,0,0.5);
    transition: transform 0.6s;
    clip-path: polygon(5% 0, 100% 0, 95% 100%, 0 100%);
}

.hero-visual img:hover {
    transform: scale(1.08) rotate(2deg);
}

/* Zigzag Stack Grid */
.stack-container {
    max-width: 1400px;
    margin: 8rem auto;
    padding: 0 2rem;
}

.zigzag-stack {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
}

.stack-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    padding: 5rem 3rem;
    position: relative;
    background: white;
    margin-bottom: 3rem;
    box-shadow: 0 20px 60px rgba(0,0,0,0.12);
}

.stack-block:nth-child(odd) {
    clip-path: polygon(0 0, 95% 0, 100% 10%, 100% 100%, 0 100%);
    margin-left: 0;
    margin-right: 3rem;
}

.stack-block:nth-child(even) {
    clip-path: polygon(5% 0, 100% 0, 100% 100%, 0 100%, 0 10%);
    margin-left: 3rem;
    margin-right: 0;
    grid-template-columns: 1fr 1fr;
}

.stack-block:nth-child(even) .stack-image {
    order: 2;
}

.stack-block:nth-child(even) .stack-text {
    order: 1;
}

.stack-block::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 8px;
    background: linear-gradient(90deg, var(--electric-purple), var(--hot-magenta), var(--lime-green));
}

.stack-image img {
    width: 100%;
    height: auto;
    border-radius: 18px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
    transition: transform 0.5s;
}

.stack-image img:hover {
    transform: scale(1.05);
}

.stack-text h3 {
    color: var(--electric-purple);
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    font-weight: 900;
    text-transform: uppercase;
}

.stack-text p {
    color: #4B5563;
    line-height: 2;
    margin-bottom: 1.2rem;
    font-size: 1.05rem;
}

/* Content Sections */
.content-section {
    max-width: 1200px;
    margin: 7rem auto;
    padding: 0 2rem;
}

.section-heading {
    font-size: 3.8rem;
    color: var(--deep-violet);
    margin-bottom: 4rem;
    text-align: center;
    font-weight: 900;
    position: relative;
    text-transform: uppercase;
}

.section-heading::after {
    content: '';
    display: block;
    width: 200px;
    height: 8px;
    background: linear-gradient(90deg, var(--electric-purple), var(--hot-magenta), var(--lime-green));
    margin: 2rem auto 0;
    clip-path: polygon(0 0, 100% 0, 95% 100%, 5% 100%);
}

.info-box {
    background: white;
    padding: 4.5rem;
    border-radius: 20px;
    box-shadow: 0 15px 50px rgba(0,0,0,0.1);
    margin-bottom: 4rem;
    border-left: 12px solid var(--hot-magenta);
    clip-path: polygon(0 0, 100% 0, 98% 100%, 0 100%);
}

.info-box h4 {
    color: var(--electric-purple);
    font-size: 2.2rem;
    margin-bottom: 2rem;
    font-weight: 900;
    text-transform: uppercase;
}

.info-box p {
    color: #4B5563;
    line-height: 2.1;
    margin-bottom: 1.5rem;
}

/* Reviews - Zigzag Stack */
.reviews-zigzag {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: 3.5rem;
    margin-top: 4rem;
}

.review-zigzag-card {
    background: white;
    padding: 3.5rem;
    border-radius: 18px;
    box-shadow: 0 15px 45px rgba(0,0,0,0.1);
    border-top: 8px solid var(--lime-green);
    transition: all 0.4s;
    position: relative;
    clip-path: polygon(0 0, 100% 0, 97% 100%, 3% 100%);
}

.review-zigzag-card::after {
    content: '';
    position: absolute;
    top: -25px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--hot-magenta);
    clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
    box-shadow: 0 6px 18px rgba(236, 72, 153, 0.6);
}

.review-zigzag-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 25px 60px rgba(0,0,0,0.18);
}

.review-stars {
    color: var(--hot-magenta);
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
}

.reviewer-info {
    margin-bottom: 2rem;
}

.reviewer-name {
    font-weight: 900;
    color: var(--deep-violet);
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.reviewer-city {
    color: #6B7280;
    font-size: 1rem;
}

.review-content {
    color: #4B5563;
    line-height: 2;
    margin-bottom: 1.5rem;
}

.review-timestamp {
    color: #9CA3AF;
    font-size: 0.9rem;
    font-style: italic;
}

/* FAQ - Zigzag Style */
.faq-section {
    max-width: 1000px;
    margin: 5rem auto;
}

.faq-block {
    background: white;
    margin-bottom: 3rem;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    overflow: hidden;
    border-left: 10px solid var(--lime-green);
    clip-path: polygon(0 0, 100% 0, 98% 100%, 0 100%);
}

.faq-query {
    padding: 3rem;
    font-weight: 900;
    color: var(--electric-purple);
    font-size: 1.4rem;
    background: linear-gradient(to right, rgba(132, 204, 22, 0.08), transparent);
    text-transform: uppercase;
}

.faq-response {
    padding: 0 3rem 3rem;
    color: #4B5563;
    line-height: 2.1;
}

/* Footer */
.zigzag-footer {
    background: var(--deep-violet);
    color: white;
    padding: 7rem 2rem 3rem;
    margin-top: 10rem;
    position: relative;
    clip-path: polygon(0 10%, 5% 0, 10% 10%, 15% 0, 20% 10%, 25% 0, 30% 10%, 35% 0, 40% 10%, 45% 0, 50% 10%, 55% 0, 60% 10%, 65% 0, 70% 10%, 75% 0, 80% 10%, 85% 0, 90% 10%, 95% 0, 100% 10%, 100% 100%, 0 100%);
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
}

.footer-layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 5rem;
    margin-bottom: 5rem;
}

.footer-column h4 {
    color: var(--lime-green);
    margin-bottom: 2rem;
    font-size: 1.5rem;
    font-weight: 900;
    text-transform: uppercase;
}

.footer-column a {
    color: #D1D5DB;
    text-decoration: none;
    display: block;
    margin-bottom: 1.3rem;
    transition: color 0.3s;
}

.footer-column a:hover {
    color: var(--lime-green);
}

.footer-column p {
    color: #D1D5DB;
    margin-bottom: 1.2rem;
    line-height: 1.9;
}

.footer-base {
    text-align: center;
    padding-top: 4rem;
    border-top: 1px solid rgba(255,255,255,0.15);
    color: #9CA3AF;
}

.footer-base p {
    margin-bottom: 1rem;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .nav-menu {
        flex-direction: column;
        gap: 2rem;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
    }
    
    .hero-content h1 {
        font-size: 3rem;
    }
    
    .stack-block {
        grid-template-columns: 1fr !important;
        clip-path: none !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
    }
    
    .stack-block:nth-child(even) .stack-image {
        order: 1;
    }
    
    .stack-block:nth-child(even) .stack-text {
        order: 2;
    }
    
    .reviews-zigzag {
        grid-template-columns: 1fr;
    }
}