/* ============================================================
   弈球哥聊球 · 个人主页样式
   域名：890.cn
   设计语言：彭博 / 机构研报 · 深底 + 古铜金 + 数据网格
   目标：专业 · 权威 · 可复盘 · 可验证
   ============================================================ */

/* ===== 字体声明（本地优先 + Google 回退） ===== */
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: local('Inter Regular'), local('Inter-Regular'),
         url('https://fonts.gstatic.com/s/inter/v18/UcCO3FwrK3iLTeHuS_nVMrMxCp50SjIw2boKoduKmMEVuLyfAZ9hjA.woff2') format('woff2');
}
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: local('Inter SemiBold'), local('Inter-SemiBold'),
         url('https://fonts.gstatic.com/s/inter/v18/UcCO3FwrK3iLTeHuS_nVMrMxCp50SjIw2boKoduKmMEVuGKAYXxhJg.woff2') format('woff2');
}
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: local('Inter Bold'), local('Inter-Bold'),
         url('https://fonts.gstatic.com/s/inter/v18/UcCO3FwrK3iLTeHuS_nVMrMxCp50SjIw2boKoduKmMEVuFuYQXxhJg.woff2') format('woff2');
}
@font-face {
    font-family: 'JetBrains Mono';
    font-style: normal;
    font-weight: 500;
    font-display: swap;
    src: local('JetBrains Mono Medium'), local('JetBrainsMono-Medium'),
         url('https://fonts.gstatic.com/s/jetbrainsmono/v20/tDbY2o-flEEny0FZhsIKuSHmLE2WUe6J_qQ9b3D-_f8O-qjkG4lz.woff2') format('woff2');
}
@font-face {
    font-family: 'JetBrains Mono';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: local('JetBrains Mono Bold'), local('JetBrainsMono-Bold'),
         url('https://fonts.gstatic.com/s/jetbrainsmono/v20/tDbY2o-flEEny0FZhsIKuSHmLE2WUe6J_qQ9b3D-_f8O-qjkG4lz.woff2') format('woff2');
}

/* ===== 设计令牌（Design Tokens） ===== */
:root {
    --ink-900: #060d1c;
    --ink-800: #0a1628;
    --ink-700: #15233e;
    --ink-600: #1f3358;
    --gold-500: #d4a24c;
    --gold-600: #b8852e;
    --gold-glow: rgba(212, 162, 76, .18);
    --gold-shadow: 0 4px 16px rgba(212, 162, 76, .15);
    --up: #16a34a;
    --down: #dc2626;
    --neutral: #94a3b8;
    --gray-50:  #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-500: #64748b;
    --gray-700: #334155;
    --gray-900: #0f172a;
    --text-primary: var(--gray-900);
    --text-secondary: var(--gray-700);
    --text-muted: var(--gray-500);
    --bg-page: #f3f5f9;
    --bg-surface: #ffffff;
    --border-subtle: #e8ecf1;
    --border-strong: var(--gray-200);
    --shadow-sm: 0 1px 2px rgba(2, 6, 23, .06);
    --shadow-md: 0 4px 14px rgba(2, 6, 23, .08);
    --shadow-lg: 0 18px 48px rgba(2, 6, 23, .14);
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', Menlo, Consolas, monospace;
    --fs-h1: 32px;
    --fs-h2: 22px;
    --fs-h3: 18px;
    --fs-body: 15px;
    --fs-small: 13px;
    --fs-xs: 11px;
    --primary-dark: var(--ink-800);
    --primary-blue: var(--ink-700);
    --gold: var(--gold-500);
    --gold-dark: var(--gold-600);
    --gray-400: var(--gray-300);
    --white: #ffffff;
}

/* ===== 全局重置 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-sans);
    background: var(--bg-page);
    color: var(--text-primary);
    line-height: 1.7;
    padding: 0 16px 60px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-feature-settings: 'cv02', 'cv03', 'cv11';
}

.hero-stat, .kpi-value, .trust-bar .number, .tnum, .cred-value {
    font-family: var(--font-mono);
    font-variant-numeric: tabular-nums;
    font-feature-settings: 'tnum';
}

/* ===== 容器 ===== */
.container {
    max-width: 860px;
    margin: 0 auto;
    background: var(--bg-surface);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    overflow: hidden;
    margin-top: 24px;
    border: 1px solid var(--border-subtle);
}

/* ===== 导航 ===== */
.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 36px;
    border-bottom: 1px solid var(--border-subtle);
    flex-wrap: wrap;
    gap: 12px;
    background: var(--bg-surface);
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: saturate(180%) blur(6px);
}

.nav-brand {
    font-size: 19px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -.4px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.nav-brand::before {
    content: '';
    width: 6px; height: 18px;
    background: var(--gold-500);
    border-radius: 1px;
}
.nav-brand span { color: var(--gold-500); }

.nav-links {
    display: flex;
    gap: 22px;
    font-size: 13.5px;
    font-weight: 500;
    color: var(--gray-300);
    flex-wrap: wrap;
}
.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color .2s;
    position: relative;
    padding: 2px 0;
}
.nav-links a:hover { color: var(--gold-600); }
.nav-links a:hover::after {
    content: '';
    position: absolute;
    left: 0; right: 0; bottom: -2px;
    height: 1.5px;
    background: var(--gold-500);
}
.nav-toggle { display: none; }

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
    content: '';
    display: block;
    width: 18px; height: 2px;
    background: currentColor;
    border-radius: 1px;
    position: relative;
    transition: transform .25s, top .25s, opacity .2s;
}
.nav-toggle span::before { position: absolute; top: -6px; left: 0; }
.nav-toggle span::after  { position: absolute; top:  6px; left: 0; }
.nav-toggle.is-open span { background: transparent; }
.nav-toggle.is-open span::before { top: 0; transform: rotate(45deg); }
.nav-toggle.is-open span::after  { top: 0; transform: rotate(-45deg); }

/* ===== Hero ===== */
.hero {
    position: relative;
    background:
        radial-gradient(1200px 600px at 50% -10%, var(--gold-glow), transparent 60%),
        linear-gradient(180deg, var(--ink-900) 0%, var(--ink-800) 100%);
    padding: 56px 36px 44px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    overflow: hidden;
}

/* 头像包装 + 在线状态 */
.avatar-wrap {
    position: relative;
    display: inline-block;
    margin-bottom: 20px;
}

.online-dot {
    position: absolute;
    bottom: 8px;
    right: 8px;
    width: 18px;
    height: 18px;
    background: #22c55e;
    border: 3px solid var(--ink-800);
    border-radius: 50%;
    box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7);
    animation: online-pulse 2s infinite;
    z-index: 2;
}

@keyframes online-pulse {
    0%   { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7); }
    70%  { box-shadow: 0 0 0 8px rgba(34, 197, 94, 0); }
    100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
    background-size: 64px 64px;
    -webkit-mask-image: radial-gradient(ellipse at center, #000 25%, transparent 75%);
    mask-image: radial-gradient(ellipse at center, #000 25%, transparent 75%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0; left: 50%;
    transform: translateX(-50%);
    width: 80px; height: 2px;
    background: linear-gradient(90deg, transparent, var(--gold-500), transparent);
}

.hero > * { position: relative; z-index: 1; }

.hero-avatar {
    width: 112px; height: 112px;
    border-radius: 50%;
    display: block;
    object-fit: cover;
    background: #1890ff;
    box-shadow:
        0 0 0 4px var(--ink-800),
        0 0 0 5px var(--gold-500),
        0 0 0 8px rgba(212,162,76,.15),
        0 12px 32px rgba(0,0,0,.35);
    margin-bottom: 20px;
    user-select: none;
}

.hero h1 {
    font-size: var(--fs-h1);
    font-weight: 800;
    color: var(--white);
    letter-spacing: -.6px;
    line-height: 1.2;
}
.hero h1 .highlight { color: var(--gold-500); }

.hero .subtitle {
    font-size: 16px;
    color: var(--gray-300);
    margin-top: 6px;
    font-weight: 400;
    letter-spacing: .3px;
}

.hero .tagline {
    font-size: 14.5px;
    color: var(--gray-300);
    margin-top: 14px;
    max-width: 580px;
    line-height: 1.8;
}
.hero .tagline strong { color: var(--gold-500); font-weight: 600; }

.hero .badge-group {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px 12px;
    margin-top: 18px;
}

.hero .badge-group .badge {
    background: rgba(255,255,255,.06);
    padding: 5px 14px;
    border-radius: 4px;
    font-size: 12.5px;
    color: var(--gray-300);
    font-weight: 500;
    border: 1px solid rgba(255,255,255,.08);
    letter-spacing: .2px;
}

.hero .badge-group .badge.gold {
    background: rgba(212,162,76,.12);
    color: var(--gold-500);
    border-color: rgba(212,162,76,.3);
}

.hero .hero-stat {
    margin-top: 22px;
    padding: 9px 18px;
    background: rgba(212,162,76,.08);
    border: 1px solid rgba(212,162,76,.25);
    border-radius: 4px;
    color: var(--gold-500);
    font-size: 12.5px;
    font-weight: 600;
    letter-spacing: .5px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.hero-stat-num {
    font-family: var(--font-mono);
    font-size: 18px;
    font-weight: 800;
    color: var(--white);
    background: linear-gradient(135deg, var(--gold-500), var(--gold-600));
    padding: 0 8px;
    border-radius: 4px;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 0;
}

.hero-stat-tag {
    background: rgba(255,255,255,.08);
    padding: 2px 8px;
    border-radius: 3px;
    font-size: 11px;
    color: var(--gray-300);
    letter-spacing: .3px;
}

.hero .hero-stat::before {
    content: '';
    width: 7px; height: 7px;
    border-radius: 50%;
    background: #ef4444;
    box-shadow: 0 0 0 0 rgba(239,68,68,.7);
    animation: live-pulse 1.8s infinite;
}
@keyframes live-pulse {
    0%   { box-shadow: 0 0 0 0 rgba(239,68,68,.7); }
    70%  { box-shadow: 0 0 0 8px rgba(239,68,68,0); }
    100% { box-shadow: 0 0 0 0 rgba(239,68,68,0); }
}

/* ==========================================================
   P0 #1：Hero 金色主 CTA · 整页最显眼按钮
   ========================================================== */
.hero-cta-primary {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-top: 24px;
    padding: 14px 32px;
    background: linear-gradient(135deg, var(--gold-500) 0%, var(--gold-600) 100%);
    color: #0a1628;
    font-size: 16px;
    font-weight: 800;
    text-decoration: none;
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,.18);
    box-shadow:
        0 8px 24px rgba(212,162,76,.32),
        0 0 0 1px rgba(255,255,255,.06) inset;
    transition: transform .2s, box-shadow .2s;
    cursor: pointer;
    letter-spacing: .3px;
    position: relative;
    overflow: hidden;
}

.hero-cta-primary::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,.35) 50%, transparent 70%);
    transform: translateX(-100%);
    transition: transform .6s;
}

.hero-cta-primary:hover {
    transform: translateY(-2px);
    box-shadow:
        0 12px 32px rgba(212,162,76,.42),
        0 0 0 1px rgba(255,255,255,.12) inset;
}

.hero-cta-primary:hover::after {
    transform: translateX(100%);
}

.hero-cta-primary .hero-cta-arrow {
    transition: transform .2s;
}
.hero-cta-primary:hover .hero-cta-arrow {
    transform: translateX(4px);
}

/* 联系区的"暗色"变体 */
.hero-cta-primary--dark {
    background: linear-gradient(135deg, var(--ink-800) 0%, var(--ink-700) 100%);
    color: var(--gold-500);
    border: 1px solid var(--gold-500);
    box-shadow:
        0 8px 24px rgba(0,0,0,.32),
        0 0 0 1px rgba(212,162,76,.18) inset;
}
.hero-cta-primary--dark:hover {
    color: #fff;
    box-shadow:
        0 12px 32px rgba(212,162,76,.32),
        0 0 0 1px rgba(212,162,76,.42) inset;
}

.hero-cta-hint {
    margin-top: 8px;
    font-size: 12.5px;
    color: rgba(255,255,255,.55);
    letter-spacing: .2px;
}
.hero-cta-hint strong {
    color: var(--gold-500);
    font-weight: 700;
}

/* ==========================================================
   凭证条 - 紧凑版
   ========================================================== */
.cred-bar {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    background: var(--ink-900);
    color: var(--white);
    border-top: 1px solid var(--ink-700);
    border-bottom: 1px solid var(--ink-700);
}

.cred-cell {
    padding: 10px 8px;
    border-right: 1px solid rgba(255,255,255,.06);
    position: relative;
    min-height: 0;
}
.cred-cell:last-child { border-right: none; }

.cred-cell::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 12px; height: 1.5px;
    background: var(--gold-500);
}

.cred-cell .cred-label {
    font-size: 8.5px;
    letter-spacing: .8px;
    color: var(--gray-300);
    text-transform: uppercase;
    font-weight: 600;
    line-height: 1.2;
}

.cred-cell .cred-value {
    font-size: 13px;
    font-weight: 700;
    color: var(--white);
    margin-top: 2px;
    letter-spacing: -.2px;
    line-height: 1.25;
}

.cred-cell .cred-value small {
    font-size: 10px;
    font-weight: 400;
    color: var(--gray-300);
    margin-left: 1px;
}

.cred-cell .cred-value.up { color: #4ade80; }

/* ===== 通用标题 ===== */
.section-title {
    font-size: var(--fs-h2);
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 18px;
    letter-spacing: -.4px;
    display: flex;
    align-items: center;
    gap: 12px;
}
.section-title::before {
    content: '';
    width: 3px; height: 18px;
    background: var(--gold-500);
    border-radius: 1px;
    flex-shrink: 0;
}
.section-title .emoji { font-size: 19px; opacity: .85; }

.section-sub {
    font-size: 14.5px;
    color: var(--text-muted);
    margin-bottom: 22px;
    line-height: 1.7;
}

/* ===== 内容区域 ===== */
.content-section {
    padding: 32px 40px;
    border-bottom: 1px solid var(--border-subtle);
}
.content-section:last-of-type { border-bottom: none; }

/* ===== 核心服务 ===== */
.service-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 12px;
}

.service-item {
    position: relative;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    padding: 14px 12px;
    text-align: left;
    transition: border-color .2s, transform .2s;
}

.service-item::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 18px; height: 1.5px;
    background: var(--gold-500);
}

.service-item .icon {
    position: absolute;
    top: 10px; right: 10px;
    font-size: 10px;
    color: var(--gray-300);
    font-family: var(--font-mono);
}

.service-item h4 {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
    letter-spacing: -.2px;
}

.service-item p {
    font-size: 11.5px;
    color: var(--text-muted);
    line-height: 1.5;
}

.service-item:hover {
    border-color: var(--gold-500);
}

/* ===== 内嵌福利钩子 ===== */
.bonus-inline {
    margin-top: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 14px 20px;
    background: linear-gradient(135deg, #eff6ff, #dbeafe);
    border: 1px solid #93c5fd;
    border-radius: 8px;
    flex-wrap: wrap;
    text-decoration: none;
    color: #1e3a8a;
    transition: transform .2s, box-shadow .2s;
}
.bonus-inline:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(147,197,253,.3);
}

.bonus-inline-text {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13.5px;
    line-height: 1.5;
    flex: 1;
    min-width: 0;
}

.bonus-inline-emoji { font-size: 18px; }
.bonus-inline-text strong { color: #dc2626; }

.bonus-inline-meta {
    display: inline-block;
    padding: 0 8px;
    background: rgba(255,255,255,.55);
    border-radius: 4px;
    font-size: 11.5px;
    color: #1e40af;
    white-space: nowrap;
}

.bonus-cta-inline {
    flex-shrink: 0;
    background: linear-gradient(135deg, var(--gold-500), var(--gold-600));
    color: var(--white);
    padding: 10px 22px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
    letter-spacing: .3px;
    transition: transform .2s;
}
.bonus-cta-inline:hover { transform: translateY(-1px); }

/* ==========================================================
   P2 #6：精选教程 3 卡片
   ========================================================== */
.featured-tutorials {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin: 8px 0 24px;
}

.featured-card {
    position: relative;
    background: var(--white);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    padding: 18px;
    transition: transform .2s, box-shadow .2s, border-color .2s;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.featured-card:hover {
    transform: translateY(-3px);
    border-color: var(--gold-500);
    box-shadow: 0 8px 24px rgba(212,162,76,.18);
}

.featured-card.is-new {
    background: linear-gradient(135deg, #fdf6ec 0%, #fef9e7 100%);
    border-color: rgba(212,162,76,.3);
}

.featured-tag {
    display: inline-block;
    background: var(--gold-500);
    color: var(--ink-900);
    font-size: 10px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 3px;
    letter-spacing: .5px;
    align-self: flex-start;
}
.featured-tag-blue {
    background: #2563eb;
    color: #fff;
}
.featured-tag-green {
    background: #059669;
    color: #fff;
}

.featured-title {
    font-size: 14.5px;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    line-height: 1.4;
    margin-top: 2px;
}
.featured-title:hover { color: var(--gold-600); }

.featured-desc {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.55;
    flex: 1;
}

.featured-meta {
    font-size: 10.5px;
    color: var(--text-muted);
    font-family: var(--font-mono);
    letter-spacing: .3px;
    padding-top: 6px;
    border-top: 1px dashed var(--border-subtle);
}

/* ===== 教程地图 ===== */
.topic-map {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin: 0 0 24px;
    padding: 18px 20px;
    background:
        radial-gradient(circle at 30% 0%, rgba(212,162,76,.06), transparent 60%),
        var(--gray-50);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    position: relative;
}

.topic-map::before {
    content: 'TOPIC MAP';
    position: absolute;
    top: -9px; left: 18px;
    background: var(--bg-surface);
    padding: 0 8px;
    font-size: 10px;
    letter-spacing: 1.6px;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-weight: 700;
}

.topic-cluster {
    border-left: 2px solid var(--border-subtle);
    padding-left: 12px;
}
.topic-cluster.is-latest { border-left-color: var(--gold-500); }

.topic-head {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}

.topic-tag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px; height: 22px;
    border-radius: 4px;
    background: var(--ink-900);
    color: var(--gold-500);
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 12px;
}
.topic-cluster.is-latest .topic-tag {
    background: linear-gradient(135deg, var(--gold-500), var(--gold-600));
    color: var(--ink-900);
}

.topic-head .topic-cn {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -.2px;
}

.topic-chips {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.chip {
    display: inline-block;
    padding: 4px 10px;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    font-size: 12.5px;
    color: var(--text-secondary);
    text-decoration: none;
    font-family: var(--font-mono);
    letter-spacing: .2px;
    transition: border-color .15s, color .15s, transform .15s;
}
.chip:hover {
    border-color: var(--gold-500);
    color: var(--gold-600);
    transform: translateX(2px);
}
.topic-cluster.is-latest .chip:hover {
    border-color: var(--down);
    color: var(--down);
}

/* ===== 内容作品列表 ===== */
.work-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.work-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    background: var(--gray-50);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    transition: background .2s, border-color .2s, transform .15s;
    flex-wrap: wrap;
    gap: 8px;
}
.work-item:hover {
    background: var(--bg-surface);
    border-color: var(--gold-500);
    transform: translateX(2px);
}

.work-item .info {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.work-item .info .tag {
    background: var(--gold-500);
    color: var(--ink-900);
    font-size: 10.5px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 3px;
}

.work-item .info .tag.tutorial {
    background: linear-gradient(180deg, #2563eb, #1e40af);
    color: #fff;
    font-family: var(--font-mono);
    letter-spacing: .8px;
    padding: 3px 9px;
}

.work-item:last-child .info .tag.tutorial {
    background: linear-gradient(180deg, var(--gold-500), var(--gold-600));
    color: var(--ink-900);
    position: relative;
}
.work-item:last-child .info .tag.tutorial::after {
    content: 'LATEST';
    position: absolute;
    top: -8px; right: -28px;
    font-size: 8px;
    font-family: var(--font-mono);
    letter-spacing: .5px;
    background: var(--down);
    color: #fff;
    padding: 1px 5px;
    border-radius: 2px;
}

.work-item .info .title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}
.work-item .info .title a {
    color: var(--text-primary);
    text-decoration: none;
}
.work-item .info .title a:hover { color: var(--gold-600); }

.work-item .date {
    font-size: 12px;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.work-item.is-folded { display: none; }
.work-list.is-open .work-item.is-folded {
    display: flex;
    animation: fadeIn .3s ease;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to   { opacity: 1; transform: translateY(0); }
}

.works-toggle {
    display: block;
    width: 100%;
    margin-top: 12px;
    padding: 10px 0;
    background: var(--gray-50);
    border: 1px dashed var(--border-subtle);
    border-radius: 6px;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: background .2s, color .2s, border-color .2s;
}
.works-toggle:hover {
    background: var(--bg-surface);
    border-color: var(--gold-500);
    color: var(--gold-600);
}
.works-toggle .works-toggle-arrow {
    display: inline-block;
    margin-left: 6px;
    transition: transform .25s;
    font-family: var(--font-mono);
}
.works-toggle[aria-expanded="true"] .works-toggle-arrow {
    transform: rotate(180deg);
}

/* "每周一更新教程" CTA 钩子 */
.works-more {
    display: block;
    margin-top: 16px;
    padding: 14px;
    background: linear-gradient(135deg, var(--gray-50), #fff);
    border: 1px dashed var(--border-subtle);
    border-radius: 8px;
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
    text-decoration: none;
    transition: border-color .2s, color .2s;
}
.works-more:hover {
    border-color: var(--gold-500);
    color: var(--gold-600);
}
.works-more-cta {
    color: var(--gold-600);
    font-weight: 700;
    margin-left: 4px;
}

/* ===== FAQ ===== */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.faq-item {
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    overflow: hidden;
    transition: border-color .2s;
}
.faq-item:hover { border-color: var(--gold-500); }

.faq-question {
    width: 100%;
    background: var(--bg-surface);
    border: none;
    padding: 16px 20px;
    font-size: 14.5px;
    font-weight: 600;
    color: var(--text-primary);
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background .2s;
    font-family: inherit;
    line-height: 1.5;
}
.faq-question:hover { background: var(--gray-50); }

.faq-question .arrow {
    font-size: 14px;
    color: var(--text-muted);
    transition: transform .25s;
    flex-shrink: 0;
    margin-left: 12px;
}
.faq-item.open .faq-question .arrow { transform: rotate(180deg); }
.faq-item.open { border-color: var(--gold-500); }

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .3s ease, padding .3s ease;
    padding: 0 20px;
    color: var(--text-secondary);
    font-size: 13.5px;
    line-height: 1.85;
}
.faq-item.open .faq-answer {
    max-height: 600px;
    padding: 4px 20px 18px;
}

/* ===== 联系 ===== */
.contact-section {
    background: linear-gradient(135deg, #fefce8, #fef3c7);
    border-radius: 12px;
    padding: 30px 30px;
    border: 1px solid #fde68a;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.contact-section::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--gold-500), transparent);
}

.contact-section h3 {
    font-size: 20px;
    font-weight: 800;
    color: #92400e;
    margin-bottom: 6px;
    letter-spacing: -.3px;
}
.contact-section .contact-sub {
    font-size: 13.5px;
    color: #78350f;
    margin-bottom: 18px;
}

/* 联系区主 CTA：与 hero CTA 视觉对齐 */
.contact-section .hero-cta-primary {
    margin-top: 0;
    margin-bottom: 18px;
}

.contact-section .contact-item {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--white);
    padding: 12px 28px;
    border-radius: 6px;
    box-shadow: var(--shadow-sm);
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    border: 1px solid #fde68a;
}
.contact-section .contact-item .contact-wechat-label { font-weight: 600; }
.contact-section .contact-item .contact-wechat-no   { font-weight: 700; font-family: var(--font-mono); }

.contact-section .contact-item .copy-hint {
    font-size: 12px;
    font-weight: 400;
    color: var(--text-muted);
    margin-left: 6px;
}

.contact-section .contact-item .copy-btn {
    background: var(--gold-500);
    border: none;
    color: var(--ink-900);
    font-size: 12px;
    font-weight: 700;
    padding: 5px 14px;
    border-radius: 3px;
    cursor: pointer;
    transition: background .2s;
    font-family: inherit;
}
.contact-section .contact-item .copy-btn:hover { background: var(--gold-600); color: var(--white); }

.contact-section .contact-feedback {
    margin: 16px 0 14px;
}
.contact-section .contact-feedback a {
    font-size: 13px;
    color: #92400e;
    text-decoration: none;
    border-bottom: 1px dashed #fde68a;
    padding-bottom: 2px;
    transition: color .2s, border-color .2s;
    cursor: pointer;
}
.contact-section .contact-feedback a:hover {
    color: var(--gold-600);
    border-color: var(--gold-500);
}

.contact-section .social-links {
    display: flex;
    justify-content: center;
    gap: 14px;
    margin-top: 16px;
    flex-wrap: wrap;
}
.contact-section .social-links a {
    font-size: 13.5px;
    color: #78350f;
    text-decoration: none;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 3px;
    background: rgba(255,255,255,.55);
    transition: background .2s;
    border: 1px solid rgba(120,53,15,.12);
}
.contact-section .social-links a:hover { background: var(--white); border-color: var(--gold-500); }

.contact-section .contact-tip {
    margin-top: 16px;
    font-size: 12.5px;
    color: #78350f;
    font-family: var(--font-mono);
}

/* ===== 三维方法论可视化 ===== */
.method-viz {
    display: flex;
    align-items: stretch;
    justify-content: space-between;
    margin: 8px 0 20px;
    background: linear-gradient(135deg, var(--gray-50), #fff);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 16px 18px;
    gap: 0;
}

.method-viz-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 0 8px;
    position: relative;
}

.method-viz-item:not(:last-child)::after {
    content: '+';
    position: absolute;
    right: -8px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 18px;
    color: var(--gold-500);
    font-weight: 300;
    font-family: var(--font-mono);
    line-height: 1;
}

.method-viz-item .method-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--gold-500), var(--gold-600));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 10px;
    box-shadow: 0 4px 12px rgba(212, 162, 76, .25);
}

.method-viz-item .method-label {
    font-size: 14px;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -.2px;
    margin-bottom: 4px;
}

.method-viz-item .method-sub {
    font-size: 11px;
    color: var(--text-muted);
    line-height: 1.5;
    letter-spacing: 0;
}

.method-viz-summary {
    margin-top: 12px;
    padding: 8px 14px;
    background: var(--ink-900);
    color: var(--gold-500);
    border-radius: 6px;
    font-size: 12px;
    font-weight: 700;
    text-align: center;
    letter-spacing: .5px;
}

.method-viz-summary::before { content: '✕ '; color: var(--gold-500); }
.method-viz-summary::after { content: ' · 任一不过即放弃'; color: var(--gray-300); font-weight: 400; }

/* ===== 用户证言 ===== */
.testimonial {
    background: linear-gradient(135deg, #f0f9ff, #fff);
    border: 1px solid #bae6fd;
    border-left: 4px solid #0284c7;
    border-radius: 10px;
    padding: 18px 20px;
    margin-bottom: 24px;
    position: relative;
}

.testimonial::before {
    content: '"';
    position: absolute;
    top: 8px;
    left: 14px;
    font-size: 48px;
    color: #0284c7;
    opacity: .15;
    line-height: 1;
    font-family: Georgia, serif;
}

.testimonial-text {
    font-size: 13.5px;
    color: var(--text-primary);
    line-height: 1.85;
    margin: 0 0 8px;
    padding-left: 8px;
    font-style: italic;
}

.testimonial-author {
    font-size: 11.5px;
    color: var(--text-muted);
    padding-left: 8px;
}

/* ===== 信任徽章 ===== */
.trust-badges {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

@media (max-width: 768px) {
    /* 凭证条：移动端3列，更紧凑 */
    .cred-bar { grid-template-columns: repeat(3, 1fr); }
    .cred-cell { padding: 7px 4px; min-height: 38px; }
    .cred-cell:nth-child(3) { border-right: none; }
    .cred-cell:nth-child(-n+3) { border-bottom: 1px solid rgba(255,255,255,.06); }
    .cred-cell:nth-child(4), .cred-cell:nth-child(5), .cred-cell:nth-child(6) { border-bottom: none; }
    .cred-cell .cred-label { font-size: 8px; letter-spacing: .3px; }
    .cred-cell .cred-value { font-size: 11px; }
    .cred-cell .cred-value small { font-size: 9px; }

    .method-viz {
        padding: 12px 8px;
        margin: 4px 0 14px;
    }
    .method-viz-item {
        padding: 0 2px;
    }
    .method-viz-item:not(:last-child)::after {
        right: -4px;
        font-size: 14px;
    }
    .method-icon {
        width: 36px;
        height: 36px;
        font-size: 18px;
        margin-bottom: 6px;
    }
    .method-label {
        font-size: 12px;
    }
    .method-sub {
        font-size: 10px;
    }
    .method-viz-summary {
        font-size: 11px;
        padding: 7px 10px;
    }
    .method-viz-summary::after { content: ' · 不过即放弃'; }

    .testimonial {
        padding: 14px 16px;
        margin-bottom: 16px;
    }
    .testimonial-text { font-size: 12.5px; line-height: 1.7; }
    .testimonial-author { font-size: 11px; }

    .hero-stat-num { font-size: 16px; }
    .hero-stat-tag { font-size: 10px; }

    .online-dot { width: 14px; height: 14px; bottom: 6px; right: 6px; }

    .hero .hero-stat { font-size: 11px; padding: 7px 10px; gap: 5px; }
}

.trust-badge-item {
    background: linear-gradient(135deg, #fffbf2, #fff);
    border: 1px solid rgba(212, 162, 76, .3);
    border-radius: 8px;
    padding: 14px 12px;
    text-align: center;
    transition: transform .2s, border-color .2s, box-shadow .2s;
    position: relative;
    overflow: hidden;
}

.trust-badge-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 24px;
    height: 1.5px;
    background: var(--gold-500);
}

.trust-badge-item:hover {
    transform: translateY(-2px);
    border-color: var(--gold-500);
    box-shadow: 0 8px 20px rgba(212, 162, 76, .15);
}

.trust-badge-icon {
    display: block;
    font-size: 22px;
    margin-bottom: 6px;
}

.trust-badge-label {
    display: block;
    font-size: 10px;
    color: var(--text-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 4px;
}

.trust-badge-value {
    display: block;
    font-size: 12px;
    color: var(--text-primary);
    font-weight: 600;
    font-family: var(--font-mono);
    letter-spacing: -.2px;
}

/* 联系区补充提示 */
.contact-tip-sub {
    margin-top: 6px;
    font-size: 11.5px;
    color: #92400e;
    opacity: 0.85;
    font-style: italic;
}

/* ===== 风险揭示 ===== */
.disclaimer-box {
    background: linear-gradient(135deg, #fef2f2, #fee2e2);
    border-radius: 10px;
    padding: 22px 24px;
    border: 1px solid #fecaca;
    color: #7f1d1d;
    position: relative;
    overflow: hidden;
}
.disclaimer-box::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 4px; height: 100%;
    background: #dc2626;
}
.disclaimer-box h3 {
    font-size: 16px;
    font-weight: 800;
    color: #991b1b;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.disclaimer-box p {
    font-size: 13.5px;
    line-height: 1.85;
}
.disclaimer-box p strong { color: #991b1b; }
.disclaimer-box ul {
    margin-top: 12px;
    padding-left: 22px;
}
.disclaimer-box li {
    font-size: 13px;
    line-height: 1.9;
}
.disclaimer-box li strong { color: #991b1b; }

/* ===== 页脚 ===== */
.footer {
    text-align: center;
    font-size: 12.5px;
    color: var(--text-muted);
    padding: 22px 40px 28px;
    border-top: 1px solid var(--border-subtle);
    background: var(--bg-surface);
}

.footer .footer-beian {
    margin-top: 8px;
    font-size: 12px;
    color: var(--gray-300);
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
}

.footer .footer-beian a {
    color: var(--gray-300);
    text-decoration: none;
    transition: color .2s;
}
.footer .footer-beian a:hover { color: var(--gold-600); }

.footer .footer-risk {
    margin-top: 12px;
    font-size: 12px;
    color: #94a3b8;
    line-height: 1.7;
}

/* ==========================================================
   P0：底部浮动 CTA · 全程可见
   ========================================================== */
.floating-cta {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 90;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 22px;
    background: linear-gradient(135deg, var(--gold-500), var(--gold-600));
    color: var(--ink-900);
    border-radius: 36px;
    font-size: 14.5px;
    font-weight: 800;
    box-shadow:
        0 8px 28px rgba(212,162,76,.42),
        0 2px 8px rgba(0,0,0,.16);
    cursor: pointer;
    user-select: none;
    opacity: 0;
    transform: translateY(80px);
    transition: opacity .35s, transform .35s;
    border: 1px solid rgba(255,255,255,.18);
}

.floating-cta.show {
    opacity: 1;
    transform: translateY(0);
}

.floating-cta:hover {
    transform: translateY(-2px);
    box-shadow:
        0 12px 36px rgba(212,162,76,.52),
        0 2px 8px rgba(0,0,0,.16);
}

.floating-cta .floating-emoji {
    font-size: 18px;
}

/* 浮动 CTA 脉冲提示 */
.floating-cta::after {
    content: '';
    position: absolute;
    top: -4px; right: -4px;
    width: 12px; height: 12px;
    border-radius: 50%;
    background: var(--down);
    box-shadow: 0 0 0 0 rgba(220,38,38,.5);
    animation: live-pulse 1.8s infinite;
}

/* ==========================================================
   P1 #4-A：Toast 通知
   ========================================================== */
.toast {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(80px);
    background: rgba(10, 22, 40, .96);
    color: #fde68a;
    padding: 14px 24px;
    border-radius: 32px;
    font-size: 14px;
    font-weight: 600;
    border: 1px solid rgba(212,162,76,.3);
    box-shadow: 0 12px 36px rgba(0,0,0,.32);
    z-index: 100;
    opacity: 0;
    transition: opacity .3s, transform .3s;
    white-space: nowrap;
    backdrop-filter: blur(8px);
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .container { max-width: 760px; }
}

@media (max-width: 768px) {
    /* 减少四周空白 */
    body { padding: 0 0 60px; }
    .container { 
        border-radius: 0; 
        max-width: 100%; 
        margin-top: 0;
        box-shadow: none;
        border-left: none;
        border-right: none;
    }

    .nav { position: relative; padding: 14px 16px; gap: 8px; }
    .nav-brand { font-size: 17px; }
    .nav-toggle { display: inline-flex; }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%; left: 0; right: 0;
        background: var(--bg-surface);
        flex-direction: column;
        gap: 0;
        padding: 6px 0;
        border-bottom: 1px solid var(--border-subtle);
        box-shadow: var(--shadow-md);
        font-size: 14px;
    }
    .nav-links.is-open { display: flex; }
    .nav-links a {
        padding: 13px 16px;
        width: 100%;
        color: var(--text-primary);
        border-bottom: 1px solid var(--border-subtle);
    }
    .nav-links a:last-child { border-bottom: none; }
    .nav-links a:hover { background: var(--gray-50); }
    .nav-links a:hover::after { display: none; }

    .hero { padding: 32px 16px 24px; }
    .hero-avatar { width: 80px; height: 80px; margin-bottom: 16px; }
    .hero h1 { font-size: 22px; line-height: 1.25; }
    .hero .subtitle { font-size: 13px; }
    .hero .tagline { font-size: 13px; line-height: 1.6; max-width: 100%; margin-top: 10px; }
    .hero::before { display: none; }
    .hero::after { width: 56px; }
    .hero .badge-group { gap: 6px 8px; margin-top: 14px; }
    .hero .badge-group .badge { font-size: 11px; padding: 3px 10px; }
    .hero .hero-stat { font-size: 11px; padding: 7px 10px; letter-spacing: .2px; margin-top: 14px; }

    /* Hero CTA 移动端：满宽 */
    .hero-cta-primary { width: 100%; justify-content: center; padding: 12px 16px; font-size: 15px; margin-top: 18px; }
    .hero-cta-hint { font-size: 11px; }

    /* 凭证条：2列3行，紧凑布局 */
    .cred-bar { 
        grid-template-columns: repeat(2, 1fr); 
    }
    .cred-cell { 
        padding: 8px 6px; 
        min-height: 44px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        text-align: center;
        border-right: 1px solid rgba(255,255,255,.06) !important;
        border-bottom: 1px solid rgba(255,255,255,.06) !important;
    }
    .cred-cell:nth-child(2n) { border-right: none !important; }
    .cred-cell:nth-child(5), .cred-cell:nth-child(6) { border-bottom: none !important; }
    .cred-cell::before { display: none; }
    .cred-cell .cred-label { 
        font-size: 9px; 
        letter-spacing: .5px; 
        margin-bottom: 2px;
    }
    .cred-cell .cred-value { 
        font-size: 12px; 
        line-height: 1.2;
        word-break: keep-all;
    }
    .cred-cell .cred-value small { font-size: 9.5px; }

    /* 核心服务：保持2行3列 */
    .service-grid { grid-template-columns: repeat(3, 1fr); gap: 8px; }
    .service-item { padding: 10px 8px; }
    .service-item::before { width: 14px; height: 1px; }
    .service-item .icon { top: 8px; right: 8px; font-size: 9px; }
    .service-item h4 { font-size: 11px; margin-bottom: 2px; }
    .service-item p { font-size: 10px; line-height: 1.4; }

    .bonus-inline { flex-direction: column; align-items: stretch; padding: 12px 14px; gap: 10px; }
    .bonus-inline-text { flex-direction: column; align-items: flex-start; gap: 4px; font-size: 12.5px; }
    .bonus-cta-inline { width: 100%; text-align: center; padding: 10px 16px; }

    /* 精选教程：移动端只显示1个最新 */
    .featured-tutorials { 
        grid-template-columns: 1fr; 
        gap: 10px; 
        margin-bottom: 14px; 
    }
    .featured-card { 
        display: none;  /* 默认隐藏 */
    }
    .featured-card:last-child { 
        display: flex;  /* 只显示最后一个（最新） */
    }
    .featured-card { padding: 12px 10px; }
    .featured-tag { font-size: 9px; padding: 2px 6px; }
    .featured-title { font-size: 13px; }
    .featured-desc { font-size: 11px; line-height: 1.5; }
    .featured-meta { font-size: 9px; }

    /* 教程地图：移动端隐藏 */
    .topic-map { display: none; }

    /* 内容区域：减少内边距 */
    .content-section { padding: 16px 14px; }
    .section-title { font-size: 16px; gap: 8px; margin-bottom: 10px; }
    .section-title::before { height: 14px; width: 3px; }
    .section-title .emoji { font-size: 16px; }
    .section-sub { font-size: 12px; line-height: 1.4; margin-bottom: 12px; }

    .work-list { gap: 6px; }
    .work-item { padding: 10px 12px; flex-direction: column; align-items: flex-start; gap: 6px; }
    .work-item .info { width: 100%; flex-wrap: nowrap; }
    .work-item .info .tag { font-size: 9px; padding: 2px 6px; }
    .work-item .info .tag.tutorial { padding: 2px 6px; }
    .work-item .info .title { font-size: 12.5px; }
    .work-item .date { margin-left: 0; font-size: 10.5px; }
    .works-toggle { padding: 8px 0; font-size: 12px; margin-top: 8px; }
    .works-more { padding: 10px; font-size: 12px; margin-top: 10px; }

    .faq-question { font-size: 13px; padding: 12px 14px; }
    .faq-answer { font-size: 12.5px; padding: 0 14px; }
    .faq-item.open .faq-answer { padding: 4px 14px 14px; }

    .contact-section { padding: 20px 14px; }

    /* 信任徽章：移动端2列 */
    .trust-badges {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
        margin-bottom: 16px;
    }
    .trust-badge-item { padding: 10px 8px; }
    .trust-badge-icon { font-size: 18px; margin-bottom: 4px; }
    .trust-badge-label { font-size: 9px; }
    .trust-badge-value { font-size: 11px; }
    .contact-section h3 { font-size: 18px; }
    .contact-section .contact-sub { font-size: 12.5px; margin-bottom: 14px; }
    .contact-section .hero-cta-primary { margin-bottom: 14px; }
    .contact-section .contact-item {
        font-size: 14px;
        padding: 10px 16px;
        flex-wrap: wrap;
        justify-content: center;
    }
    .contact-section .contact-item .copy-hint { width: 100%; text-align: center; margin: 4px 0 0; }
    .contact-section .contact-feedback { margin: 12px 0 10px; font-size: 12px; }
    .contact-section .social-links { gap: 10px; margin-top: 12px; }
    .contact-section .social-links a { font-size: 12px; padding: 5px 10px; }
    .contact-section .contact-tip { margin-top: 12px; font-size: 11px; }

    .disclaimer-box { padding: 14px 16px; }
    .disclaimer-box::before { width: 3px; }
    .disclaimer-box h3 { font-size: 14px; margin-bottom: 8px; }
    .disclaimer-box p { font-size: 12px; }
    .disclaimer-box li { font-size: 11.5px; line-height: 1.7; }
    .disclaimer-box ul { margin-top: 8px; padding-left: 18px; }

    .footer { padding: 16px 14px 18px; font-size: 11px; }
    .footer .footer-risk { font-size: 11px; }

    /* 浮动 CTA 移动端 */
    .floating-cta {
        padding: 12px 16px;
        font-size: 13px;
        bottom: 16px;
        right: 16px;
    }

    /* Toast 移到偏底部，避开 FAB */
    .toast { bottom: 70px; font-size: 13px; padding: 12px 20px; }
}

@media (max-width: 480px) {
    /* 核心服务：保持2列 */
    .service-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
    .service-item { padding: 10px 8px; }
    .service-item h4 { font-size: 11px; }
    .service-item p { font-size: 10px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
    
    .hero .badge-group .badge { font-size: 10.5px; padding: 3px 10px; }
    .trust-bar { grid-template-columns: 1fr; gap: 0; padding: 16px; }
    .trust-bar .item { align-items: center; border: none; padding: 0; margin: 0; text-align: center; }
    
    .work-list { gap: 6px; }
    .work-item { padding: 10px 12px; }
    .work-item .info .title { font-size: 12px; }
    
    .cred-bar { grid-template-columns: repeat(3, 1fr); }
    .cred-cell { padding: 6px 4px; min-height: 36px; }
    .cred-cell .cred-label { font-size: 7.5px; }
    .cred-cell .cred-value { font-size: 10.5px; }
    .bonus-section .bonus-cta { padding: 11px 28px; font-size: 14.5px; }
    .footer { font-size: 11px; }
    .disclaimer-box li { font-size: 11px; }

    /* 浮动 CTA 缩小文字 */
    .floating-cta .floating-text { font-size: 12px; }
    .floating-cta { padding: 10px 14px; }
    .floating-emoji { font-size: 18px; margin: 0; }
}

/* ===== 信任条（保留兼容） ===== */
.trust-bar { display: none; }

/* ===== KPI 面板（已并入 cred-bar · 保留兼容壳） ===== */
.kpi-panel { display: none; }