@charset "utf-8";
/* CSS Document */
/* ===== 全局样式 ===== */
:root {
    --color-black-industrial: #121212;
    --color-black-secondary: #1E1E1E;
    --color-orange-vitality: #FF8C00;
    --color-text-primary: #FFFFFF;
    --color-text-secondary: #A0A0A0;
    --header-height: 70px;
}

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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
    background-color: var(--color-black-industrial);
    color: var(--color-text-primary);
    overflow-x: hidden;
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 80px 0;
    overflow: hidden;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--color-text-primary);
    margin-bottom: 10px;
    position: relative;
    display: inline-block;
    text-transform: uppercase;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background-color: var(--color-orange-vitality);
}

.section-title p {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 15px auto 0;
}

/* ===== 动画效果 ===== */
.reveal { opacity: 0; transform: translateY(40px); transition: opacity 0.8s ease-out, transform 0.8s ease-out; }
.reveal-left { opacity: 0; transform: translateX(-50px); transition: opacity 0.8s ease-out, transform 0.8s ease-out; }
.reveal-right { opacity: 0; transform: translateX(50px); transition: opacity 0.8s ease-out, transform 0.8s ease-out; }
.reveal-top { opacity: 0; transform: translateY(-30px); transition: opacity 0.8s ease-out, transform 0.8s ease-out; }
.reveal-bottom { opacity: 0; transform: translateY(30px); transition: opacity 0.8s ease-out, transform 0.8s ease-out; }

.reveal.visible,
.reveal-left.visible,
.reveal-right.visible,
.reveal-top.visible,
.reveal-bottom.visible {
    opacity: 1;
    transform: translate(0);
}

/* ===== 按钮样式 ===== */
.cta-button {
    display: inline-block;
    padding: 15px 35px;
    background-color: var(--color-orange-vitality);
    color: #fff;
    font-size: 1.1rem;
    font-weight: bold;
    border-radius: 5px;
    transition: all 0.3s ease;
    border: none;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    transition: all 0.5s ease;
    z-index: -1;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(255, 140, 0, 0.3);
}

.cta-button:hover::before {
    left: 100%;
}

/* ===== 响应式设计 ===== */
@media (max-width: 1024px) {
    .section-title h2 { font-size: 2.2rem; }
    .zhefeng-content h1 { font-size: 3rem; }
}

@media (max-width: 768px) {
    .section-title { margin-bottom: 40px; }
    .section-title h2 { font-size: 2rem; }
    .zhefeng-content h1 { font-size: 2.5rem; }
    .zhefeng-content p { font-size: 1.1rem; }
    .phone-link span { display: none; }
    section { padding: 60px 0; }
    .social-icon { width: 120px; }
    .footer-content { flex-direction: column; }
    .footer-column { text-align: center; width: 100%; }
    .footer-column h4::after { left: 50%; transform: translateX(-50%); }
}

@media (max-width: 480px) {
    .section-title h2 { font-size: 1.8rem; }
    .zhefeng-content h1 { font-size: 2rem; }
    .cta-button { padding: 12px 25px; font-size: 1rem; }
    .social-icon { width: 100px; }
    .header-left { gap: 10px; }
}