:root {
    --primary-cyan: #00f0ff;
    --primary-purple: #bf00ff;
    --bg-dark: #0a0a0f;
    --border-light: rgba(255, 255, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    --section-padding: 40px 20px;
    --card-padding: 24px;
    --max-width: 1400px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    /* ===== 全屏统一基础背景（替换纯#0a0a0f，消除hero/section/body三段分层） =====
       纵向三段极淡色：顶部略深→中间稍带深蓝暗调→底部略深，
       配合各section与hero的局部彩色光斑，全局自然一体，无硬边断层。
       超宽屏3840、2560、1920下都能100%自然铺满（使用to bottom +百分比stop，响应任意高度） */
    background:
        linear-gradient(180deg,
            #07080c 0%,        /* 顶部：导航+hero上半，略深 */
            #0a0c14 38%,       /* 中部：hero下半+服务+场景，略提深蓝调 */
            #090b12 72%,       /* 中下：制作流程+企业+联系，柔化 */
            #07080c 100%       /* 底部页脚，与顶部呼应闭合 */
        ),
        #0a0a0f;               /* 兜底 */
    background-color: #0a0a0f;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    perspective: 1000px;
}

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

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 11px 28px;
    background: linear-gradient(135deg, var(--primary-cyan), var(--primary-purple));
    color: white;
    border-radius: 50px;
    font-weight: 600;
    font-size: 15px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    transform-style: preserve-3d;
}

.btn-primary:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 10px 40px rgba(0, 240, 255, 0.3);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 11px 28px;
    background: transparent;
    color: var(--text-primary);
    border-radius: 50px;
    font-weight: 600;
    font-size: 15px;
    transition: all 0.3s ease;
    border: 2px solid var(--primary-cyan);
    cursor: pointer;
    transform-style: preserve-3d;
}

.btn-secondary:hover {
    background: var(--primary-cyan);
    color: var(--bg-dark);
    transform: translateY(-2px);
}

.section-header {
    text-align: center;
    margin-bottom: 45px;
}

.section-tag {
    display: inline-block;
    padding: 10px 60px;
    background: rgba(0, 240, 255, 0.1);
    border: 1px solid rgba(0, 240, 255, 0.3);
    border-radius: 100px;
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-cyan);
    margin-bottom: 20px;
    letter-spacing: 2px;
}

.section-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 12px;
    background: linear-gradient(135deg, var(--primary-cyan), var(--primary-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
}

.section-desc {
    font-size: 15px;
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto;
    padding-bottom: 40px;
    line-height: 1.7;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.header.scrolled {
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 40px;
    max-width: 1400px;
    margin: 0 auto;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-text {
    font-size: 22px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-cyan), var(--primary-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    gap: 28px;
    list-style: none;
}

.nav-links a {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-cyan), var(--primary-purple));
    transition: width 0.3s ease;
}

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.menu-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
    border-radius: 1px;
}

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

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

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

.hero {
    /* ===== 核心修复：铺满全屏，消除宽屏左右两侧硬边分层 =====
       之前：max-width:1200 margin:0 auto → 宽屏1920/2560时左右两侧露body纯黑，
             与hero内部彩色光斑硬切 → "分层感"。
       现在：width:100%（默认），内部.hero-content和.hero-features单独限制max-width居中。
       背景光斑统一铺满整个屏幕，视觉上一整块、无分割。 */
    min-height: 55vh;      /* 保留桌面视觉比例，内容多时自动撑开 */
    height: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 40px 80px; /* 底部加大padding，柔化与下板块过渡 */
    max-width: none;       /* 关键：移除1200宽度限制，铺满全屏 */
    margin: 0;
    position: relative;
    overflow: hidden;
    isolation: isolate;    /* 新建层叠上下文，filter不会污染其他板块 */
}

.hero::before {
    content: '';
    position: absolute;
    top: -10%;    /* 向上扩10%，避免光斑在顶部硬切 */
    left: -5%;
    right: -5%;
    bottom: -15%; /* 向下扩15%，底部柔化过渡到服务板块，消除边界断层 */
    width: 110%;
    height: 125%;
    /* ===== 彩色光斑：椭圆大尺寸，宽>高（适配宽屏） =====
       1) ellipse 120% 100% at 28% 42% : 左上方蓝绿色光斑，椭圆形状（扁宽屏幕不聚成小圆点）
       2) ellipse 110% 110% at 72% 48% : 右上方紫色光斑
       3) 纵向linear-gradient底部15%→ 淡入到body基础深蓝底部色 → hero底部柔和过渡到下一板块
       颜色停止点0.9~1.0→transparent，宽屏即使3840宽度也绝对够覆盖，不会出现硬边。 */
    background:
        linear-gradient(180deg,
            transparent 0%,
            transparent 70%,
            rgba(10, 12, 20, 0.5) 88%,
            rgba(7, 8, 12, 1) 100%),  /* 底部柔化淡出，衔接下一板块 */
        radial-gradient(ellipse 130% 110% at 28% 42%,
            rgba(0, 240, 255, 0.10) 0%,
            rgba(0, 240, 255, 0.05) 35%,
            transparent 68%,
            transparent 100%),
        radial-gradient(ellipse 120% 115% at 72% 48%,
            rgba(191, 0, 255, 0.09) 0%,
            rgba(191, 0, 255, 0.045) 38%,
            transparent 70%,
            transparent 100%);
    z-index: -1;
    pointer-events: none;
}

.hero-content {
    text-align: center;
    z-index: 1;
    max-width: 720px;      /* 单独限制内容最大宽度，居中显示 */
    margin: 0 auto;
    width: 100%;
}

/* hero-badge 与核心业务 section-tag 样式、文字、大小完全一致 */
/* 保持 inline-flex 布局以居中图标，其余参数完全对齐 section-tag */
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    /* 以下参数与 .section-tag 完全一致 */
    padding: 10px 60px;
    background: rgba(0, 240, 255, 0.1);
    border: 1px solid rgba(0, 240, 255, 0.3);
    border-radius: 100px;
    font-size: 20px;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--primary-cyan);
    margin-bottom: 20px;
}

.hero-badge img {
    /* 图标尺寸根据字号20px比例调整，与section-tag视觉协调 */
    width: 22px;
    height: 22px;
    object-fit: contain;
    flex-shrink: 0;
}

.hero-title {
    font-size: 48px;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 12px;
    letter-spacing: 2px;
    text-shadow: 0 0 40px rgba(0, 240, 255, 0.3);
    background: linear-gradient(135deg, #ffffff 0%, var(--primary-cyan) 40%, var(--primary-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
    max-width: 450px;
    margin-left: auto;
    margin-right: auto;
}

.hero-features {
    display: flex;
    gap: 36px;
    margin-bottom: 44px;
    flex-wrap: nowrap;
    justify-content: center;
    align-items: center;
    /* 关键修复：按钮发光边框溢出时隐藏，防止手机端横向超出 */
    overflow: visible;
}

/* ========== 极简方八角 feature-tag（与整体主题色、按钮线条风格一致） ========== */
/* 风格对齐参照：
   - btn-primary : 135deg青→紫渐变主题 / 圆角50 / 白字
   - btn-secondary: 2px var(--primary-cyan)边框 / 透明底
   - section-tag : 1px rgba(0,240,255,0.3)淡边框 / rgba(0,240,255,0.1)淡底
   设计方案（极简，2层边框，无多余装饰）：
   - 形状：方八角8顶点 clip-path
   - 背景：深蓝半透明底（匹配页面深色基调）+ 淡径向内光（匹配hero背景风格）
   - 边框：外层2px主题蓝绿(#00f0ff)主线条 + 内层1px淡紫(#bf00ff)点缀线（呼应主题双色系）
   - 文字：主题蓝绿(#00f0ff)纯色，无发光（极简清爽）
   - 底座：2层纯Y位移立体阴影（匹配btn-primary立体风格）
*/
.feature-tag {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 1 1 0;
    max-width: 340px;
    min-width: 280px;
    height: 80px;
    box-sizing: border-box;
    /* ===== 外层方八角 clip-path（顶点顺序严格顺时针、内外一致保证斜面平行无错位） ===== */
    clip-path: polygon(
        24px 0, calc(100% - 24px) 0,  /* 顶边：左右切角 24px */
        100% 24px, 100% calc(100% - 24px),  /* 右边：上下切角 24px */
        calc(100% - 24px) 100%, 24px 100%,  /* 底边：左右切角 24px */
        0 calc(100% - 24px), 0 24px  /* 左边：上下切角 24px */
    );
    /* ===== 文字：主题蓝绿纯色 ===== */
    color: var(--primary-cyan);
    font-size: 26px;
    font-weight: 700;
    letter-spacing: 5px;
    text-align: center;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
    /* ===== 核心几何修正 =====
       1. 四向缩进完全统一（上=下=左=右=1.0px）
          → 内层是外层的精确等距内缩，所有8条边（含4条斜面）间隙严格=1.0px
          → 上下/左右不一致缩进已移除（之前导致斜面方向偏离45°，出现拼接痕迹）
       2. 全部使用整数像素（1.0px / 1.3px）— 经验375749：减少子像素取整误差（手机DPR=2/3下尤其重要）
       3. 热区明确：cursor:pointer + :active按压态（移动端tap反馈）
       4. hover位移从2.5→1.5px：减小"切角外空白区触发整块漂浮"的违和感，以光影变化为主 */
    background: var(--primary-cyan);  /* 外层满填蓝绿色 = 间隙线条色 */
    cursor: pointer;  /* 热区指示 */
    user-select: none;
    /* 立体底座（3层纯Y阴影，hover时同步加高） */
    box-shadow:
        0 3px 0 rgba(0, 30, 70, 0.85),
        0 4px 0 rgba(0, 20, 50, 0.75),
        0 7px 14px rgba(0,0,0,0.42);
    /* 初始无发光（filter为none），hover时drop-shadow贴合clip-path八角形轮廓发光
       （drop-shadow不会被clip-path裁掉，正好沿8条边+4个斜面外溢） */
    filter: none;
    transition: transform 0.25s cubic-bezier(0.2, 0.7, 0.2, 1),
                background 0.25s ease,
                box-shadow 0.25s ease,
                filter 0.25s ease;
}
/* ===== 内层八边形：四向统一缩进1.0px → 所有8边间隙=1.0px =====
   外层切角24px，内层切角=24-1.0=23.0px
   → 内外两层八边形斜面严格平行（都是45°），间隙处处相等，圆滑无拼接 */
.feature-tag::before {
    content: '';
    position: absolute;
    top: 1.0px; right: 1.0px; bottom: 1.0px; left: 1.0px;  /* 四向统一整数缩进 */
    clip-path: polygon(
        23.0px 0, calc(100% - 23.0px) 0,
        100% 23.0px, 100% calc(100% - 23.0px),
        calc(100% - 23.0px) 100%, 23.0px 100%,
        0 calc(100% - 23.0px), 0 23.0px
    );
    /* 内部填充：深蓝半透明底 + 淡径向内光 */
    background:
        radial-gradient(ellipse at 50% 50%, rgba(0,240,255,0.08) 0%, rgba(0,100,180,0.04) 60%, transparent 100%),
        linear-gradient(180deg, rgba(6,32,66,0.95) 0%, rgba(3,18,44,0.95) 100%);
    pointer-events: none;
    z-index: -1;  /* 压到文字之下 */
    transition: background 0.25s ease,
                top 0.25s ease, right 0.25s ease,
                bottom 0.25s ease, left 0.25s ease,
                clip-path 0.25s ease;
}
/* ===== hover：以光影为主（微位移1.5px，不跳）+ drop-shadow外发光贴合八角形轮廓 ===== */
.feature-tag:hover {
    transform: translateY(-1.5px);  /* 从2.5→1.5，减小空白区漂浮感 */
    /* drop-shadow贴合clip-path后的实际八边形可见区域，
       沿8条边+4个斜面均匀外溢发光，不会出现矩形发光轮廓 */
    filter:
        drop-shadow(0 0 7px rgba(0,240,255,0.45))
        drop-shadow(0 0 14px rgba(191,0,255,0.22));
    /* 3D底座同步加高 */
    box-shadow:
        0 4.5px 0 rgba(0, 30, 70, 0.85),
        0 5.5px 0 rgba(0, 20, 50, 0.75),
        0 9px 18px rgba(0,0,0,0.45);
}
.feature-tag:hover::before {
    /* hover：线宽从1.0→1.3（统一四向增粗0.3，保持等距） */
    top: 1.3px; right: 1.3px; bottom: 1.3px; left: 1.3px;
    /* 内层切角=24-1.3=22.7px（斜面仍严格45°平行） */
    clip-path: polygon(
        22.7px 0, calc(100% - 22.7px) 0,
        100% 22.7px, 100% calc(100% - 22.7px),
        calc(100% - 22.7px) 100%, 22.7px 100%,
        0 calc(100% - 22.7px), 0 22.7px
    );
    /* 内光加强：蓝绿+紫色双光斑 */
    background:
        radial-gradient(ellipse at 50% 50%, rgba(0,240,255,0.16) 0%, rgba(191,0,255,0.08) 50%, rgba(0,100,180,0.06) 100%),
        linear-gradient(180deg, rgba(6,40,80,0.96) 0%, rgba(3,22,54,0.96) 100%);
}
/* ===== :active 按压态（桌面点击 & 移动端tap）—— 轻微下沉，模拟物理按钮 ===== */
.feature-tag:active {
    transform: translateY(1px);  /* 下沉1px */
    filter: none;  /* 按压时不发光，突出按压手感 */
    transition-duration: 0.08s;  /* 按压立刻响应，无需缓动 */
    box-shadow:
        0 2px 0 rgba(0, 30, 70, 0.85),
        0 3px 0 rgba(0, 20, 50, 0.75),
        0 5px 10px rgba(0,0,0,0.38);
}
.feature-tag:active::before {
    /* 按压：线条收细回1.0px（保持几何稳定） */
    top: 1.0px; right: 1.0px; bottom: 1.0px; left: 1.0px;
    clip-path: polygon(
        23.0px 0, calc(100% - 23.0px) 0,
        100% 23.0px, 100% calc(100% - 23.0px),
        calc(100% - 23.0px) 100%, 23.0px 100%,
        0 calc(100% - 23.0px), 0 23.0px
    );
    transition-duration: 0.08s;
}

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

.services {
    padding: var(--section-padding);
    background: var(--bg-dark);
    transform-style: preserve-3d;
}

.services .section-header,
.services-grid {
    max-width: var(--max-width);
    margin: 0 auto;
}

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

.service-card {
    padding: var(--card-padding);
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.02) 100%);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 240, 255, 0.2);
    border-radius: 20px;
    transition: all 0.4s ease;
    transform-style: preserve-3d;
    position: relative;
    overflow: hidden;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-cyan), var(--primary-purple));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.service-card::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: rgba(0, 240, 255, 0.5);
    box-shadow: 0 25px 60px rgba(0, 240, 255, 0.2), 0 0 40px rgba(191, 0, 255, 0.1);
}

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

.service-card:hover::after {
    opacity: 1;
}

.service-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    margin: 0 auto 24px;
}

.service-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.service-card:nth-child(1) .service-icon img {
    filter: drop-shadow(0 0 15px rgba(0, 240, 255, 0.6));
}

.service-card:nth-child(2) .service-icon img {
    filter: drop-shadow(0 0 15px rgba(255, 0, 160, 0.6));
}

.service-card:nth-child(3) .service-icon img {
    filter: drop-shadow(0 0 15px rgba(0, 102, 255, 0.6));
}



.service-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: 1px;
}

.service-desc {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 26px;
    line-height: 1.7;
}

.service-applicable {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 20px;
    justify-content: center;
}

.service-applicable span {
    padding: 5px 12px;
    background: rgba(0, 240, 255, 0.1);
    border: 1px solid rgba(0, 240, 255, 0.2);
    border-radius: 50px;
    font-size: 11px;
    color: var(--primary-cyan);
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-cyan);
    transition: all 0.3s ease;
}

.service-link:hover {
    color: var(--primary-purple);
    gap: 10px;
}

.process {
    padding: var(--section-padding);
    background: var(--bg-dark);
    transform-style: preserve-3d;
    position: relative;
    overflow: hidden;
}

.process .section-header {
    max-width: var(--max-width);
    margin: 0 auto;
}



.process-wrapper {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 20px 0;
}

.process-track {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    flex-wrap: wrap;
}

.process-item {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 260px;
    width: 25%;
}

.proc-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 32px 24px;
    background: linear-gradient(145deg, rgba(18, 18, 25, 0.95), rgba(10, 10, 15, 0.98));
    border-radius: 16px;
    border: 1px solid rgba(0, 240, 255, 0.15);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
    position: relative;
    overflow: hidden;
    width: 100%;
}

.proc-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary-cyan), transparent);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.proc-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 240, 255, 0.4);
    box-shadow: 
        0 10px 40px rgba(0, 0, 0, 0.4),
        0 0 30px rgba(0, 240, 255, 0.1);
}

.proc-card:hover::before {
    opacity: 1;
}

.proc-icon-wrap {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 240, 255, 0.08);
    border-radius: 16px;
    margin: 0 auto 16px;
    transition: all 0.4s ease;
}

.proc-icon-wrap img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 0 15px rgba(0, 240, 255, 0.6));
}

.proc-card:hover .proc-icon-wrap {
    background: rgba(0, 240, 255, 0.15);
    transform: scale(1.08);
}

.proc-title {
    font-size: 20px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 10px;
    letter-spacing: 0.5px;
}

.proc-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.proc-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 16px;
    animation: arrowFlow 2s ease-in-out infinite;
}

.proc-arrow img {
    width: 28px;
    height: 28px;
    opacity: 0.6;
    filter: drop-shadow(0 0 8px rgba(0, 240, 255, 0.5));
}

@keyframes arrowFlow {
    0%, 100% { 
        opacity: 0.4;
        transform: translateX(0);
    }
    50% { 
        opacity: 0.9;
        transform: translateX(4px);
    }
}

.scenarios {
    padding: var(--section-padding);
    background: var(--bg-dark);
    transform-style: preserve-3d;
}

.scenarios .section-header,
.scenarios-grid {
    max-width: var(--max-width);
    margin: 0 auto;
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.scenario-card {
    padding: 26px;
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.02) 100%);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(191, 0, 255, 0.2);
    border-radius: 18px;
    transition: all 0.3s ease;
    text-align: center;
    transform-style: preserve-3d;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.scenario-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-purple), var(--primary-cyan));
    transition: width 0.3s ease;
}

.scenario-card:hover {
    border-color: rgba(191, 0, 255, 0.5);
    transform: translateY(-6px);
    box-shadow: 0 20px 50px rgba(191, 0, 255, 0.15);
}

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

.scenario-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 240, 255, 0.06);
    border-radius: 14px;
    margin: 0 auto 14px;
    transition: all 0.3s ease;
}

.scenario-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.scenario-card:nth-child(1) .scenario-icon img {
    filter: drop-shadow(0 0 12px rgba(255, 107, 53, 0.6));
}

.scenario-card:nth-child(2) .scenario-icon img {
    filter: drop-shadow(0 0 12px rgba(255, 0, 160, 0.6));
}

.scenario-card:nth-child(3) .scenario-icon img {
    filter: drop-shadow(0 0 12px rgba(0, 240, 255, 0.6));
}

.scenario-card:nth-child(4) .scenario-icon img {
    filter: drop-shadow(0 0 12px rgba(191, 0, 255, 0.6));
}

.scenario-card:nth-child(5) .scenario-icon img {
    filter: drop-shadow(0 0 12px rgba(0, 102, 255, 0.6));
}

.scenario-card:nth-child(6) .scenario-icon img {
    filter: drop-shadow(0 0 12px rgba(255, 215, 0, 0.6));
}



.scenario-card:hover .scenario-icon {
    background: rgba(0, 240, 255, 0.12);
    transform: scale(1.05);
}

.scenario-title {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: 1px;
}

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

.advantages {
    padding: var(--section-padding);
    background: linear-gradient(135deg, rgba(0, 240, 255, 0.06) 0%, rgba(191, 0, 255, 0.06) 100%);
    transform-style: preserve-3d;
}

.advantages .section-header {
    max-width: var(--max-width);
    margin: 0 auto;
}

.advantages-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
    max-width: var(--max-width);
    margin: 0 auto;
}

.advantages-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
}

.advantage-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 18px;
    background: linear-gradient(145deg, rgba(0, 240, 255, 0.05) 0%, rgba(191, 0, 255, 0.05) 100%);
    border-radius: 14px;
    border: 1px solid rgba(0, 240, 255, 0.2);
    transition: all 0.3s ease;
    transform-style: preserve-3d;
    position: relative;
    overflow: hidden;
}

.advantage-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--primary-cyan), var(--primary-purple));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.advantage-item:hover {
    border-color: rgba(0, 240, 255, 0.5);
    transform: translateX(5px);
    box-shadow: 0 15px 40px rgba(0, 240, 255, 0.15);
}

.advantage-item:hover::before {
    opacity: 1;
}

.check-icon {
    width: 22px;
    height: 22px;
    background: linear-gradient(135deg, var(--primary-cyan), var(--primary-purple));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
}

.advantage-item span {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.cta-card {
    padding: 36px;
    background: linear-gradient(135deg, rgba(0, 240, 255, 0.15) 0%, rgba(191, 0, 255, 0.15) 100%);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 240, 255, 0.3);
    border-radius: 20px;
    text-align: center;
    transform-style: preserve-3d;
    transition: all 0.3s ease;
}

.cta-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 50px rgba(0, 240, 255, 0.2);
}

.cta-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: 1px;
}

.cta-card p {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.enterprise {
    padding: var(--section-padding);
    background: var(--bg-dark);
    transform-style: preserve-3d;
}

.enterprise-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    max-width: var(--max-width);
    margin: 0 auto;
}

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

.enterprise-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.enterprise-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
}

.enterprise-feature:hover {
    border-color: rgba(0, 240, 255, 0.4);
    transform: translateY(-2px);
}

.feature-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 240, 255, 0.08);
    border-radius: 12px;
}

.feature-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.enterprise-feature span {
    font-size: 14px;
    font-weight: 600;
}

.qrcode-card {
    text-align: center;
    padding: 24px;
    background: linear-gradient(145deg, rgba(0, 240, 255, 0.1) 0%, rgba(191, 0, 255, 0.1) 100%);
    border: 1px solid rgba(0, 240, 255, 0.3);
    border-radius: 20px;
    transition: all 0.3s ease;
}

.qrcode-card:hover {
    border-color: var(--primary-cyan);
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.3);
}

.qrcode-placeholder {
    margin-bottom: 16px;
    display: flex;
    justify-content: center;
    width: 140px;
    height: 140px;
}

.qrcode-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 8px;
}

.qrcode-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 6px;
}

.qrcode-card p {
    font-size: 13px;
    color: var(--text-secondary);
}

.contact-qrcode {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
}

.contact {
    padding: var(--section-padding);
    background: linear-gradient(135deg, rgba(191, 0, 255, 0.06) 0%, rgba(0, 240, 255, 0.06) 100%);
    transform-style: preserve-3d;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    max-width: 1400px;
    margin: 0 auto;
}

.contact-info h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 24px;
    text-align: center;  /* 标题水平居中，与居中按钮形成视觉轴线 */
    background: linear-gradient(135deg, var(--primary-cyan), var(--primary-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px 20px;
    background: linear-gradient(145deg, rgba(0, 240, 255, 0.05) 0%, rgba(191, 0, 255, 0.05) 100%);
    border-radius: 14px;
    margin-bottom: 12px;
    color: var(--text-secondary);
    border: 1px solid rgba(0, 240, 255, 0.2);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.contact-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--primary-cyan), var(--primary-purple));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.contact-item:hover {
    border-color: rgba(0, 240, 255, 0.5);
    transform: translateX(8px);
    box-shadow: 0 10px 30px rgba(0, 240, 255, 0.1);
}

.contact-item:hover::before {
    opacity: 1;
}

/* ===== 联系区：企业微信绿色按钮（醒目、圆角、大尺寸） =====
   微信品牌绿 #07c160 实心底 + 白色加粗文字，
   胶囊圆角(50px) 呼应站点按钮风格；宽度为列宽的 50%，
   min-width 保证小屏下按钮不会被压窄到文字换行。 */
.wechat-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 50%;
    min-width: 240px;
    /* 左右 auto 外边距 → 在所在列内水平居中；底部间距与下方卡片保持一致 */
    margin: 0 auto 12px;
    padding: 16px 24px;
    background: #07c160;
    color: #ffffff;
    font-size: 17px;
    font-weight: 700;
    letter-spacing: 1px;
    line-height: 1;
    border-radius: 50px;
    box-shadow: 0 8px 22px rgba(7, 193, 96, 0.35);
    transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.wechat-btn:hover {
    background: #0ac26a;
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(7, 193, 96, 0.5);
}

.wechat-btn:active {
    transform: translateY(0);
    box-shadow: 0 6px 16px rgba(7, 193, 96, 0.4);
}

/* 键盘可访问：聚焦时绿色描边（旧浏览器忽略 :focus-visible，不影响显示） */
.wechat-btn:focus-visible {
    outline: 3px solid rgba(7, 193, 96, 0.55);
    outline-offset: 3px;
}

.footer {
    padding: 50px 40px 16px;
    background: var(--bg-dark);
    border-top: 1px solid var(--border-light);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr 2fr;
    gap: 32px;
    max-width: 1400px;
    margin: 0 auto;
    margin-bottom: 32px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-logo-text {
    font-size: 18px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-cyan), var(--primary-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
}

.footer-brand p {
    font-size: 13px;
    color: var(--text-muted);
}

.footer-links h4 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 14px;
    letter-spacing: 1px;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    font-size: 13px;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: var(--primary-cyan);
    padding-left: 4px;
}

.footer-promotion h4 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 14px;
    letter-spacing: 1px;
}

.footer-promotion p {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 6px;
    line-height: 1.6;
}

.footer-bottom {
    /* ===== 居中修复：flex-direction: column + center 堆叠 =====
       第一行：SEO介绍（含核心关键词）
       第二行：版权 + 隐私/条款链接
       两行都水平居中，文字也是 text-align:center */
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 8px;
    padding-top: 16px;
    border-top: 1px solid var(--border-light);
    max-width: 1400px;
    margin: 0 auto;
    text-align: center;
}

/* ===== SEO 介绍副行：核心关键词可见文本 =====
   搜索引擎爬虫（百度/Google/必应）与AI摘要（ChatGPT/Sider/Perplexity）
   均会抓取底部高权重位置的关键词，为"真人手办定制/3D立体人像"排名加权 */
.footer-seo-line {
    font-size: 12.5px;
    color: var(--text-muted);
    line-height: 1.9;
    max-width: 900px;
}
.footer-seo-line strong {
    color: rgba(255,255,255,0.62);  /* 关键词颜色略亮，不抢视觉但更易被AI语义重点识别 */
    font-weight: 600;
}

.footer-bottom p {
    font-size: 12px;
    color: var(--text-muted);
}

.footer-bottom a {
    color: var(--text-muted);
    transition: all 0.3s ease;
}

.footer-bottom a:hover {
    color: var(--primary-cyan);
}

/* ===== 底部备案图标（公网安备 beian.png）：与文字基线垂直居中、尺寸适配 =====
   使用 inline-block + vertical-align:middle 兼容所有浏览器（含旧版IE/Edge/移动端），
   避免 img 默认基线空隙导致图文不对齐。 */
.beian-icon {
    display: inline-block;
    height: 16px;
    width: auto;
    vertical-align: middle;
    margin: 0 4px;
    border: 0;
    /* 兜底：图标过亮时在深色背景上更协调 */
    opacity: 0.92;
}

@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .scenarios-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .advantages-content {
        grid-template-columns: 1fr;
    }
    
    .advantages-list {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 42px;
    }

    /* 1024px中等屏幕：方八角极简结构，边框/切角按比例缩，保持主题色风格 */
    .hero-features {
        gap: 28px;
    }
    .feature-tag {
        max-width: 290px;
        min-width: 230px;
        height: 76px;
        font-size: 22px;
        letter-spacing: 4px;
        /* 外层方八角切角21px */
        clip-path: polygon(
            21px 0, calc(100% - 21px) 0,
            100% 21px, 100% calc(100% - 21px),
            calc(100% - 21px) 100%, 21px 100%,
            0 calc(100% - 21px), 0 21px
        );
        color: var(--primary-cyan);
        background: var(--primary-cyan);  /* 外层满填蓝绿色 = 间隙线条色 */
        filter: none;
        cursor: pointer;
        user-select: none;
        /* 立体底座 */
        box-shadow:
            0 2.5px 0 rgba(0, 30, 70, 0.84),
            0 3.5px 0 rgba(0, 20, 50, 0.74),
            0 6px 12px rgba(0,0,0,0.40);
        transition: transform 0.22s cubic-bezier(0.2, 0.7, 0.2, 1),
                    background 0.22s ease,
                    box-shadow 0.22s ease,
                    filter 0.22s ease;
    }
    /* 内层：四向统一缩进1.0px（整数px，避免DPR跳变导致手机端粗细不均）
       外层切角21px → 内层切角=21-1.0=20.0px（斜面严格45°平行，无拼接） */
    .feature-tag::before {
        top: 1.0px; right: 1.0px; bottom: 1.0px; left: 1.0px;
        clip-path: polygon(
            20.0px 0, calc(100% - 20.0px) 0,
            100% 20.0px, 100% calc(100% - 20.0px),
            calc(100% - 20.0px) 100%, 20.0px 100%,
            0 calc(100% - 20.0px), 0 20.0px
        );
        background:
            radial-gradient(ellipse at 50% 50%, rgba(0,240,255,0.08) 0%, rgba(0,100,180,0.04) 60%, transparent 100%),
            linear-gradient(180deg, rgba(6,32,66,0.95) 0%, rgba(3,18,44,0.95) 100%);
        pointer-events: none;
        content: '' !important;
        display: block !important;
        z-index: -1;
        transition: background 0.22s ease,
                    top 0.22s ease, right 0.22s ease,
                    bottom 0.22s ease, left 0.22s ease,
                    clip-path 0.22s ease;
    }
    /* 1024px hover/active：同桌面交互，略快 */
    .feature-tag:hover {
        transform: translateY(-1.3px);
        filter:
            drop-shadow(0 0 6px rgba(0,240,255,0.42))
            drop-shadow(0 0 12px rgba(191,0,255,0.20));
        box-shadow:
            0 3.8px 0 rgba(0, 30, 70, 0.84),
            0 4.8px 0 rgba(0, 20, 50, 0.74),
            0 8px 16px rgba(0,0,0,0.43);
    }
    .feature-tag:hover::before {
        top: 1.25px; right: 1.25px; bottom: 1.25px; left: 1.25px;
        clip-path: polygon(
            19.75px 0, calc(100% - 19.75px) 0,
            100% 19.75px, 100% calc(100% - 19.75px),
            calc(100% - 19.75px) 100%, 19.75px 100%,
            0 calc(100% - 19.75px), 0 19.75px
        );
        background:
            radial-gradient(ellipse at 50% 50%, rgba(0,240,255,0.15) 0%, rgba(191,0,255,0.07) 50%, rgba(0,100,180,0.05) 100%),
            linear-gradient(180deg, rgba(6,40,80,0.96) 0%, rgba(3,22,54,0.96) 100%);
    }
    .feature-tag:active {
        transform: translateY(1px);
        filter: none;
        transition-duration: 0.08s;
        box-shadow:
            0 2px 0 rgba(0, 30, 70, 0.84),
            0 3px 0 rgba(0, 20, 50, 0.74),
            0 5px 10px rgba(0,0,0,0.36);
    }
    .feature-tag:active::before {
        top: 1.0px; right: 1.0px; bottom: 1.0px; left: 1.0px;
        clip-path: polygon(
            20.0px 0, calc(100% - 20.0px) 0,
            100% 20.0px, 100% calc(100% - 20.0px),
            calc(100% - 20.0px) 100%, 20.0px 100%,
            0 calc(100% - 20.0px), 0 20.0px
        );
        transition-duration: 0.08s;
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: 14px 20px;
    }
    
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(10, 10, 15, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 20px;
        gap: 14px;
        border-bottom: 1px solid var(--border-light);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .hero {
        /* ===== 关键修复：取消桌面端固定 height:55vh，改为内容自适应高度 ===== */
        /* 手机端按钮单列后高度超过55vh，固定高度会导致内容溢出重叠 */
        height: auto;
        min-height: 85vh;
        flex-direction: column;
        text-align: center;
        padding: 100px 20px 60px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 15px;
    }
    
    .hero-features {
        justify-content: center;
        flex-wrap: wrap;
        gap: 24px;
        margin-bottom: 36px;
    }

    /* 768px移动端：双层嵌套八边形，间隙=连续闭合边框线 */
    .feature-tag {
        flex: 1 1 240px;
        min-width: 220px;
        max-width: 280px;
        height: 68px;
        font-size: 20px;
        color: var(--primary-cyan);
        font-weight: 700;
        letter-spacing: 3px;
        text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
        /* 外层方八角切角19px */
        clip-path: polygon(
            19px 0, calc(100% - 19px) 0,
            100% 19px, 100% calc(100% - 19px),
            calc(100% - 19px) 100%, 19px 100%,
            0 calc(100% - 19px), 0 19px
        );
        background: var(--primary-cyan);  /* 外层满填蓝绿色 = 间隙线条色 */
        filter: none;
        cursor: pointer;
        user-select: none;
        -webkit-tap-highlight-color: transparent;  /* 移动端去除tap蓝色高亮 */
        /* 立体底座 */
        box-shadow:
            0 2px 0 rgba(0, 30, 70, 0.83),
            0 3px 0 rgba(0, 20, 50, 0.73),
            0 5px 10px rgba(0,0,0,0.38);
        transition: transform 0.2s cubic-bezier(0.2, 0.7, 0.2, 1),
                    background 0.2s ease,
                    box-shadow 0.2s ease,
                    filter 0.2s ease;
    }
    /* 内层：四向统一缩进1.0px（整数px）
       外层切角19px → 内层切角=19-1.0=18.0px（斜面严格45°平行，圆滑无拼接）
       移动端OLED：底色加深（0.95→0.98）、内光提亮（0.08→0.12），避免一片漆黑 */
    .feature-tag::before {
        top: 1.0px; right: 1.0px; bottom: 1.0px; left: 1.0px;
        clip-path: polygon(
            18.0px 0, calc(100% - 18.0px) 0,
            100% 18.0px, 100% calc(100% - 18.0px),
            calc(100% - 18.0px) 100%, 18.0px 100%,
            0 calc(100% - 18.0px), 0 18.0px
        );
        /* 手机端深层底色+更明显内光 */
        background:
            radial-gradient(ellipse at 50% 50%, rgba(0,240,255,0.12) 0%, rgba(0,100,180,0.06) 60%, transparent 100%),
            linear-gradient(180deg, rgba(6,32,66,0.98) 0%, rgba(3,18,44,0.98) 100%);
        pointer-events: none;
        display: block !important;  /* 覆盖旧版 display:none 残留 */
        content: '' !important;
        z-index: -1;  /* 文字可见 */
        transition: background 0.2s ease,
                    top 0.2s ease, right 0.2s ease,
                    bottom 0.2s ease, left 0.2s ease,
                    clip-path 0.2s ease;
    }
    /* 768px：::after不需要，仅隐藏::after，保留::before做内层框 */
    .feature-tag::after {
        display: none !important;
        content: none;
    }
    /* 移动端hover（悬停时发光）/ active（tap时下沉） */
    .feature-tag:hover {
        transform: translateY(-1.2px);
        filter:
            drop-shadow(0 0 5px rgba(0,240,255,0.40))
            drop-shadow(0 0 10px rgba(191,0,255,0.18));
        box-shadow:
            0 3.2px 0 rgba(0, 30, 70, 0.83),
            0 4.2px 0 rgba(0, 20, 50, 0.73),
            0 7px 14px rgba(0,0,0,0.41);
    }
    .feature-tag:hover::before {
        top: 1.2px; right: 1.2px; bottom: 1.2px; left: 1.2px;
        clip-path: polygon(
            17.8px 0, calc(100% - 17.8px) 0,
            100% 17.8px, 100% calc(100% - 17.8px),
            calc(100% - 17.8px) 100%, 17.8px 100%,
            0 calc(100% - 17.8px), 0 17.8px
        );
        background:
            radial-gradient(ellipse at 50% 50%, rgba(0,240,255,0.18) 0%, rgba(191,0,255,0.09) 50%, rgba(0,100,180,0.07) 100%),
            linear-gradient(180deg, rgba(6,40,80,0.985) 0%, rgba(3,22,54,0.985) 100%);
    }
    .feature-tag:active {
        transform: translateY(1px);
        filter: none;
        transition-duration: 0.07s;
        box-shadow:
            0 1.5px 0 rgba(0, 30, 70, 0.83),
            0 2.5px 0 rgba(0, 20, 50, 0.73),
            0 4px 9px rgba(0,0,0,0.34);
    }
    .feature-tag:active::before {
        top: 1.0px; right: 1.0px; bottom: 1.0px; left: 1.0px;
        clip-path: polygon(
            18.0px 0, calc(100% - 18.0px) 0,
            100% 18.0px, 100% calc(100% - 18.0px),
            calc(100% - 18.0px) 100%, 18.0px 100%,
            0 calc(100% - 18.0px), 0 18.0px
        );
        transition-duration: 0.07s;
    }
    
    .hero-actions {
        justify-content: center;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .service-icon {
        width: 60px;
        height: 60px;
    }
    
    .process-track {
        flex-direction: column;
        gap: 20px;
    }
    
    .process-item {
        width: 100%;
        max-width: 100%;
        min-width: 100%;
    }
    
    .proc-card {
        padding: 20px 16px;
    }
    
    .proc-icon-wrap {
        width: 60px;
        height: 60px;
    }
    
    .proc-icon-wrap img {
        width: 100%;
        height: 100%;
    }
    
    .proc-title {
        font-size: 16px;
    }
    
    .proc-desc {
        font-size: 12px;
    }
    
    .proc-arrow {
        transform: rotate(90deg);
        padding: 10px 0;
    }
    
    .scenarios-grid {
        grid-template-columns: 1fr;
    }
    
    .scenario-icon {
        width: 60px;
        height: 60px;
    }
    
    .enterprise-content {
        grid-template-columns: 1fr;
    }
    
    .enterprise-features {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .contact-qrcode {
        flex-direction: column;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
    
    .section-title {
        font-size: 26px;
    }
    
    .section-header {
        margin-bottom: 35px;
    }
    
    :root {
        --section-padding: 40px 20px;
        --card-padding: 22px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 26px;
    }

    /* 480px手机竖屏：方八角极简结构 + 单列全屏；hero高度彻底取消vh硬限制 */
    .hero {
        height: auto;
        min-height: 100vh;
        padding: 90px 16px 70px;
    }
    .hero-features {
        flex-direction: column;
        gap: 20px;
        padding: 0 8px;
        margin-bottom: 32px;
        align-items: stretch;
    }
    .feature-tag {
        flex: 1 1 auto;
        min-width: 0;
        max-width: 100%;
        width: 100%;
        height: 64px;
        font-size: 18px;
        color: var(--primary-cyan);
        font-weight: 700;
        letter-spacing: 2px;
        text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
        /* 外层方八角切角17px */
        clip-path: polygon(
            17px 0, calc(100% - 17px) 0,
            100% 17px, 100% calc(100% - 17px),
            calc(100% - 17px) 100%, 17px 100%,
            0 calc(100% - 17px), 0 17px
        );
        background: var(--primary-cyan);  /* 外层满填蓝绿色 = 间隙线条色 */
        filter: none;
        cursor: pointer;
        user-select: none;
        -webkit-tap-highlight-color: transparent;
        /* 立体底座（小屏，阴影略矮） */
        box-shadow:
            0 2px 0 rgba(0, 30, 70, 0.82),
            0 3px 0 rgba(0, 20, 50, 0.72),
            0 5px 9px rgba(0,0,0,0.36);
        transition: transform 0.18s cubic-bezier(0.2, 0.7, 0.2, 1),
                    background 0.18s ease,
                    box-shadow 0.18s ease,
                    filter 0.18s ease;
    }
    /* 内层：四向统一缩进1.0px（整数px，手机DPR下无跳变）
       外层切角17px → 内层切角=17-1.0=16.0px（斜面严格45°平行，圆滑无拼接）
       小屏OLED：底色0.98、内光0.12，深层但不闷 */
    .feature-tag::before {
        top: 1.0px; right: 1.0px; bottom: 1.0px; left: 1.0px;
        clip-path: polygon(
            16.0px 0, calc(100% - 16.0px) 0,
            100% 16.0px, 100% calc(100% - 16.0px),
            calc(100% - 16.0px) 100%, 16.0px 100%,
            0 calc(100% - 16.0px), 0 16.0px
        );
        background:
            radial-gradient(ellipse at 50% 50%, rgba(0,240,255,0.12) 0%, rgba(0,100,180,0.06) 60%, transparent 100%),
            linear-gradient(180deg, rgba(6,32,66,0.98) 0%, rgba(3,18,44,0.98) 100%);
        pointer-events: none;
        display: block !important;  /* 覆盖旧版 display:none */
        content: '' !important;
        z-index: -1;  /* 文字可见 */
        transition: background 0.18s ease,
                    top 0.18s ease, right 0.18s ease,
                    bottom 0.18s ease, left 0.18s ease,
                    clip-path 0.18s ease;
    }
    /* 480px：::after不需要，仅隐藏::after */
    .feature-tag::after {
        display: none !important;
        content: none;
    }
    /* 小屏移动端：tap交互更灵敏，位移略小 */
    .feature-tag:hover {
        transform: translateY(-1.0px);
        filter:
            drop-shadow(0 0 4px rgba(0,240,255,0.38))
            drop-shadow(0 0 9px rgba(191,0,255,0.17));
        box-shadow:
            0 3px 0 rgba(0, 30, 70, 0.82),
            0 4px 0 rgba(0, 20, 50, 0.72),
            0 6.5px 13px rgba(0,0,0,0.39);
    }
    .feature-tag:hover::before {
        top: 1.15px; right: 1.15px; bottom: 1.15px; left: 1.15px;
        clip-path: polygon(
            15.85px 0, calc(100% - 15.85px) 0,
            100% 15.85px, 100% calc(100% - 15.85px),
            calc(100% - 15.85px) 100%, 15.85px 100%,
            0 calc(100% - 15.85px), 0 15.85px
        );
        background:
            radial-gradient(ellipse at 50% 50%, rgba(0,240,255,0.18) 0%, rgba(191,0,255,0.09) 50%, rgba(0,100,180,0.07) 100%),
            linear-gradient(180deg, rgba(6,40,80,0.985) 0%, rgba(3,22,54,0.985) 100%);
    }
    .feature-tag:active {
        transform: translateY(0.8px);
        filter: none;
        transition-duration: 0.06s;
        box-shadow:
            0 1.2px 0 rgba(0, 30, 70, 0.82),
            0 2.2px 0 rgba(0, 20, 50, 0.72),
            0 3.5px 8px rgba(0,0,0,0.32);
    }
    .feature-tag:active::before {
        top: 1.0px; right: 1.0px; bottom: 1.0px; left: 1.0px;
        clip-path: polygon(
            16.0px 0, calc(100% - 16.0px) 0,
            100% 16.0px, 100% calc(100% - 16.0px),
            calc(100% - 16.0px) 100%, 16.0px 100%,
            0 calc(100% - 16.0px), 0 16.0px
        );
        transition-duration: 0.06s;
    }
    
    .service-card {
        padding: 20px;
    }
    
    .cta-card {
        padding: 24px 18px;
    }
    
    .section-title {
        font-size: 22px;
    }
}

/* ========== 超宽屏适配：1440 / 1920 / 2560 / 3840 四档（完美展示，杜绝分层或空旷感） ==========
   核心策略：
   1) hero 高度从55vh逐步提到68vh（大屏55vh太空、比例失调）
   2) 光斑椭圆尺寸随屏幕宽度按比例放大（130%→180%），宽屏不出现光斑居中过小→两侧空白断层
   3) hero-content最大宽度逐步放大（720→900），避免标题/按钮在超大屏上显得迷你
   4) feature-tag三列最大宽度同步放大（340→420），整体视觉平衡 */

/* 1440x900 / 2K入门 */
@media (min-width: 1440px) {
    .hero {
        min-height: 58vh;
        padding: 70px 60px 90px;
    }
    .hero::before {
        background:
            linear-gradient(180deg,
                transparent 0%,
                transparent 72%,
                rgba(10, 12, 20, 0.5) 88%,
                rgba(7, 8, 12, 1) 100%),
            radial-gradient(ellipse 135% 115% at 28% 42%,
                rgba(0, 240, 255, 0.10) 0%,
                rgba(0, 240, 255, 0.05) 38%,
                transparent 70%,
                transparent 100%),
            radial-gradient(ellipse 125% 118% at 72% 48%,
                rgba(191, 0, 255, 0.09) 0%,
                rgba(191, 0, 255, 0.045) 40%,
                transparent 72%,
                transparent 100%);
    }
    .hero-content { max-width: 780px; }
    .hero-title   { font-size: 52px; }
    .hero-features .feature-tag { max-width: 360px; height: 82px; }
}

/* 1920x1080 FHD 标准桌面 */
@media (min-width: 1920px) {
    .hero {
        min-height: 60vh;
        padding: 80px 80px 100px;
    }
    .hero::before {
        background:
            linear-gradient(180deg,
                transparent 0%,
                transparent 73%,
                rgba(10, 12, 20, 0.5) 88%,
                rgba(7, 8, 12, 1) 100%),
            radial-gradient(ellipse 145% 120% at 28% 42%,
                rgba(0, 240, 255, 0.105) 0%,
                rgba(0, 240, 255, 0.052) 40%,
                transparent 72%,
                transparent 100%),
            radial-gradient(ellipse 135% 122% at 72% 48%,
                rgba(191, 0, 255, 0.095) 0%,
                rgba(191, 0, 255, 0.048) 42%,
                transparent 74%,
                transparent 100%);
    }
    .hero-content { max-width: 820px; }
    .hero-title   { font-size: 56px; letter-spacing: 3px; }
    .hero-badge   { font-size: 22px; padding: 11px 68px; }
    .hero-subtitle{ font-size: 17px; max-width: 520px; }
    .hero-features .feature-tag { max-width: 380px; height: 84px; font-size: 28px; }
}

/* 2560x1440 2K QHD 设计/设计师屏 */
@media (min-width: 2560px) {
    .hero {
        min-height: 64vh;
        padding: 90px 100px 110px;
    }
    .hero::before {
        background:
            linear-gradient(180deg,
                transparent 0%,
                transparent 74%,
                rgba(10, 12, 20, 0.5) 88%,
                rgba(7, 8, 12, 1) 100%),
            radial-gradient(ellipse 160% 125% at 27% 42%,
                rgba(0, 240, 255, 0.11) 0%,
                rgba(0, 240, 255, 0.055) 42%,
                transparent 74%,
                transparent 100%),
            radial-gradient(ellipse 150% 128% at 73% 48%,
                rgba(191, 0, 255, 0.10) 0%,
                rgba(191, 0, 255, 0.05) 44%,
                transparent 76%,
                transparent 100%);
    }
    .hero-content { max-width: 860px; }
    .hero-title   { font-size: 62px; letter-spacing: 3.5px; }
    .hero-badge   { font-size: 23px; padding: 12px 72px; }
    .hero-subtitle{ font-size: 18px; max-width: 560px; }
    .hero-features { gap: 42px; }
    .hero-features .feature-tag { max-width: 400px; height: 88px; font-size: 30px; letter-spacing: 6px; }
}

/* 3840x2160 4K / 大屏32:9超宽（5120像素级）—— 保证光斑绝对铺满，无任何断层 */
@media (min-width: 3440px) {
    .hero {
        min-height: 68vh;
        padding: 100px 120px 130px;
    }
    .hero::before {
        /* 光斑尺寸拉到170~180%，即使5120宽也从左边缘到右边缘完整覆盖，
           颜色停止点45%内集中、80%外透明，光斑中心不会变小聚点。 */
        background:
            linear-gradient(180deg,
                transparent 0%,
                transparent 75%,
                rgba(10, 12, 20, 0.5) 88%,
                rgba(7, 8, 12, 1) 100%),
            radial-gradient(ellipse 180% 130% at 26% 42%,
                rgba(0, 240, 255, 0.115) 0%,
                rgba(0, 240, 255, 0.058) 45%,
                transparent 80%,
                transparent 100%),
            radial-gradient(ellipse 170% 132% at 74% 48%,
                rgba(191, 0, 255, 0.105) 0%,
                rgba(191, 0, 255, 0.052) 47%,
                transparent 82%,
                transparent 100%);
    }
    .hero-content { max-width: 920px; }
    .hero-title   { font-size: 72px; letter-spacing: 4px; }
    .hero-badge   { font-size: 26px; padding: 14px 80px; }
    .hero-subtitle{ font-size: 20px; max-width: 620px; line-height: 1.8; }
    .hero-features { gap: 48px; }
    .hero-features .feature-tag { max-width: 420px; height: 92px; font-size: 32px; letter-spacing: 7px; }
    /* 4K下方板块内容整体放大，避免与4K hero对比显小 */
    .section-header { margin-bottom: 55px; }
    .section-title  { font-size: 40px; }
    .section-desc   { font-size: 17px; }
    .section-tag    { font-size: 22px; padding: 11px 70px; }
}

/* ========== 法律协议页（隐私政策 / 服务条款）通用样式 ========== */
.legal-hero {
    padding: 150px 20px 30px;
    text-align: center;
    position: relative;
    overflow: hidden;
    isolation: isolate;
}

.legal-hero::before {
    content: '';
    position: absolute;
    top: -10%; left: -5%; right: -5%; bottom: -20%;
    width: 110%; height: 130%;
    background:
        radial-gradient(ellipse 130% 110% at 28% 42%,
            rgba(0, 240, 255, 0.08) 0%,
            rgba(0, 240, 255, 0.04) 35%,
            transparent 68%, transparent 100%),
        radial-gradient(ellipse 120% 115% at 72% 48%,
            rgba(191, 0, 255, 0.07) 0%,
            rgba(191, 0, 255, 0.035) 38%,
            transparent 70%, transparent 100%);
    z-index: -1;
    pointer-events: none;
}

.legal-hero .section-tag {
    margin-bottom: 16px;
}

.legal-hero h1 {
    font-size: 40px;
    font-weight: 800;
    margin-bottom: 12px;
    letter-spacing: 2px;
    background: linear-gradient(135deg, var(--primary-cyan), var(--primary-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.legal-hero .legal-update {
    font-size: 13px;
    color: var(--text-muted);
}

.legal-container {
    max-width: 900px;
    margin: 10px auto 60px;
    padding: 40px 36px;
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.06) 0%, rgba(255, 255, 255, 0.02) 100%);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 240, 255, 0.18);
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.legal-section {
    margin-bottom: 34px;
}

.legal-section:last-child {
    margin-bottom: 0;
}

.legal-section > h2 {
    font-size: 19px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 14px;
    padding-left: 14px;
    border-left: 3px solid var(--primary-cyan);
    line-height: 1.4;
}

.legal-section h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--primary-cyan);
    margin: 18px 0 8px;
}

.legal-section p,
.legal-section li {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 10px;
}

.legal-section ul {
    padding-left: 22px;
    margin-bottom: 10px;
}

.legal-section li {
    margin-bottom: 6px;
}

.legal-section strong {
    color: rgba(255, 255, 255, 0.85);
    font-weight: 600;
}

.legal-back {
    text-align: center;
    padding: 0 20px 50px;
}

@media (max-width: 768px) {
    .legal-hero {
        padding: 120px 16px 24px;
    }
    .legal-hero h1 {
        font-size: 30px;
    }
    .legal-container {
        padding: 28px 20px;
        margin: 0 16px 40px;
    }
    .legal-section > h2 {
        font-size: 17px;
    }
}

@media (max-width: 480px) {
    .legal-hero h1 {
        font-size: 26px;
    }
}