/* =====================================================
  千里马 SEVALO — 核心模式页专属样式
  ===================================================== */

/* ─── 内页全局楷体设置 ─── */
.battery-sep-page {
    font-family: "楷体", "楷体_GB2312", KaiTi, STKaiti, "Microsoft YaHei", sans-serif;
}

.battery-sep-page h1, .battery-sep-page h2, .battery-sep-page h3,
.battery-sep-page h4, .battery-sep-page h5, .battery-sep-page h6 {
    font-family: "楷体", "楷体_GB2312", KaiTi, STKaiti, "Microsoft YaHei", sans-serif;
}

.battery-sep-page p, .battery-sep-page li {
    font-family: "楷体", "楷体_GB2312", KaiTi, STKaiti, "Microsoft YaHei", sans-serif;
}

/* ─── 老网站 CSS 变量映射（兼容 model-page 内容模块样式）─── */
:root {
    --primary: #0ea5e9;
    --green: #10b981;
    --text-dark: #0f172a;
    --text-light: #64748b;
    --text-body: #334155;
    --text-muted: #94a3b8;
    --shadow: 0 4px 16px rgba(15, 23, 42, 0.08);
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
    --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.12);
    --shadow-blue: 0 8px 32px rgba(14, 165, 233, 0.2);
    --shadow-xl: 0 20px 60px rgba(15, 23, 42, 0.15);
    --radius: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    --transition: all 0.3s ease;
    --transition-slow: all 0.5s ease;
    --grad-hero: linear-gradient(135deg, #0F47AF 0%, #00B876 100%);
}

/* ─── 页面Hero（与zero-carbon等页面风格一致）─── */
.page-hero {
    position: relative;
    min-height: 730px;
    height: 730px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(135deg, #F0F5FF 0%, #E8F4FF 50%, #E0EBFF 100%);
    padding: 50px 40px;
}

.page-hero-bg-shapes {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.hero-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
}

.hero-shape-1 {
    top: -20%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.2) 0%, transparent 70%);
    animation: float-bg 12s ease-in-out infinite;
}

.hero-shape-2 {
    bottom: -20%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 184, 118, 0.15) 0%, transparent 70%);
    animation: float-bg 14s ease-in-out infinite reverse;
}

@keyframes float-bg {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, -40px); }
}

.page-hero .page-hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding: 80px 40px;
}

.page-hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.25);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 700;
    color: var(--primary-blue);
    letter-spacing: 1px;
    margin-bottom: 24px;
}

.page-hero-title {
    font-size: 56px;
    font-weight: 900;
    color: var(--primary-blue);
    margin-bottom: 20px;
    line-height: 1.2;
    letter-spacing: -0.5px;
}

.page-hero-desc {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.8;
    font-weight: 500;
}

/* 统计数字高亮 */
.stat-highlight {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-green) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ─── 面包屑导航 ─── */
.breadcrumb {
    background: var(--bg-light);
    padding: 12px 0;
    border-bottom: 1px solid var(--border-light);
}

.breadcrumb .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

.breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.breadcrumb a:hover {
    color: var(--primary-blue);
}

.breadcrumb .sep {
    color: var(--text-muted);
}

.breadcrumb span:last-child {
    color: var(--primary-blue);
    font-weight: 600;
}

/* ─── 客户价值卡片（升级为business-card风格）─── */
.value-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.value-card {
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: 32px 24px;
    text-align: center;
    transition: all 0.4s var(--easing-bounce);
    position: relative;
    overflow: hidden;
}

.value-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue), var(--secondary-green));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s var(--easing-bounce);
}

.value-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(0, 212, 255, 0.3);
}

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

.value-card .value-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.value-card h3 {
    font-size: 22px;
    font-weight: 800;
    color: var(--primary-blue);
    margin-bottom: 12px;
}

.value-card .value-highlight {
    font-size: 14px;
    font-weight: 600;
    color: var(--secondary-green);
    margin-bottom: 16px;
    padding: 8px 12px;
    background: rgba(0, 184, 118, 0.08);
    border-radius: 8px;
}

.value-card .value-features {
    list-style: none;
    padding: 0;
    margin: 0;
    text-align: left;
}

.value-card .value-features li {
    font-size: 13px;
    color: var(--text-secondary);
    padding: 6px 0;
    padding-left: 16px;
    position: relative;
    line-height: 1.5;
}

.value-card .value-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-green);
    font-weight: 700;
}

/* 卡片颜色区分 */
.value-card.cost .value-highlight { color: #059669; background: rgba(5, 150, 105, 0.08); }
.value-card.efficiency .value-highlight { color: #0284c7; background: rgba(2, 132, 199, 0.08); }
.value-card.carbon .value-highlight { color: #059669; background: rgba(5, 150, 105, 0.08); }
.value-card.peace .value-highlight { color: #7c3aed; background: rgba(124, 58, 237, 0.08); }

/* ─── Hero 强化 ─── */
.model-hero {
    padding-bottom: 100px;
    overflow: visible;
}

.model-hero-particles {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.model-hero-badge {
    display: inline-block;
    padding: 6px 20px;
    background: rgba(14, 165, 233, 0.15);
    border: 1px solid rgba(14, 165, 233, 0.35);
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.hero-highlight {
    display: block;
    background: linear-gradient(90deg, #0ea5e9, #10b981);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-metrics {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0;
    margin-top: 48px;
    background: rgba(255,255,255,0.06);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: var(--radius-lg);
    padding: 28px 0;
    max-width: 680px;
    margin-left: auto;
    margin-right: auto;
}

.hero-metric {
    text-align: center;
    flex: 1;
    position: relative;
}

.hero-metric-divider {
    width: 1px;
    height: 48px;
    background: rgba(255,255,255,0.15);
}

.hm-num {
    display: block;
    font-size: 44px;
    font-weight: 900;
    color: #0A0F1E;
    line-height: 1;
    font-variant-numeric: tabular-nums;
}

.hm-unit {
    font-size: 20px;
    font-weight: 700;
    color: rgba(255,255,255,0.8);
}

.hm-label {
    display: block;
    font-size: 12px;
    color: rgba(255,255,255,0.55);
    margin-top: 6px;
    letter-spacing: 0.3px;
}

/* ─── 通用Section布局 ─── */
.model-section {
    padding: 72px 0;
}

.model-section .container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
    box-sizing: border-box;
}

.model-section:nth-child(even) {
    background: #f8fbff;
}

.model-section:nth-child(odd) {
    background: #fff;
}

.section-header {
    text-align: center;
    margin-bottom: 40px;
}

/* ─── 价值对比板块专属样式 ─── */
.model-compare-section {
    padding: 32px 0 56px;
}

.model-compare-section .section-header {
    margin-bottom: 24px;
}

.model-compare-section .compare-tabs {
    margin-bottom: 16px;
}

.section-tag {
    display: inline-block;
    padding: 5px 16px;
    background: rgba(14, 165, 233, 0.08);
    border: 1px solid rgba(14, 165, 233, 0.2);
    border-radius: 100px;
    font-size: 12px;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: 40px;
    font-weight: 900;
    color: var(--text-dark);
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-header p {
    font-size: 17px;
    color: var(--text-light);
    max-width: 520px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ─── Reveal动效 ─── */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
    opacity: 1;
    transform: none;
}

/* =====================================================
  ① 商业模式重构 — 三栏专业卡片对比
  方案A（传统）/ 方案B（SEVALO）/ 关键指标
  ===================================================== */

.biz-cards {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 20px;
    margin-top: 32px;
    align-items: start;
}

/* ── 通用卡片骨架 ── */
.biz-card {
    background: #fff;
    border-radius: 20px;
    border: 1px solid rgba(148,163,184,0.12);
    padding: 28px;
    position: relative;
    transition: box-shadow 0.3s ease, transform 0.3s ease;
    overflow: hidden;
}

.biz-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(15,23,42,0.1);
}

/* ── 卡片头部 ── */
.biz-card__header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.biz-card__icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.biz-card__icon--neutral { background: rgba(148,163,184,0.1); }
.biz-card__icon--brand   { background: rgba(15,71,175,0.08); }
.biz-card__icon--metrics { background: rgba(148,163,184,0.08); }

.biz-card__icon--neutral svg { stroke: #64748b; }
.biz-card__icon--brand svg    { stroke: #0F47AF; }
.biz-card__icon--metrics svg { stroke: #0F47AF; }

.biz-card__plan-tag {
    padding: 3px 12px;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.biz-card__plan-tag--neutral { background: rgba(148,163,184,0.1); color: #94a3b8; }
.biz-card__plan-tag--brand   { background: rgba(15,71,175,0.1); color: #0F47AF; }
.biz-card__plan-tag--metrics { background: rgba(15,71,175,0.07); color: #0F47AF; }

.biz-card__title {
    font-size: 18px;
    font-weight: 800;
    color: #0f172a;
    margin-bottom: 4px;
    line-height: 1.3;
}

.biz-card__sub {
    font-size: 12.5px;
    color: #475569;
    margin-bottom: 20px;
    font-weight: 500;
}

/* ── 方案A：传统方案（灰边） ── */
.biz-card--trad {
    border: 1.5px solid #c8d0db;
}

.biz-card--trad:hover {
    border-color: #94a3b8;
    box-shadow: 0 12px 40px rgba(148,163,184,0.12);
}

.biz-card--trad .biz-card__title { color: #475569; }

.biz-card--trad .biz-stat {
    background: rgba(220, 38, 38, 0.06);
    border-color: rgba(220, 38, 38, 0.15);
}

.biz-card--trad .biz-stat__num { color: #dc2626; }
.biz-card--trad .biz-stat__label { color: #dc2626; }

.biz-card--trad .biz-detail-dot--neutral { background: #94a3b8; }

.biz-card__stat-row {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}

.biz-stat {
    flex: 1;
    padding: 12px;
    border-radius: 12px;
    background: #f8fafc;
    text-align: center;
    border: 1px solid rgba(148,163,184,0.08);
}

.biz-stat__num {
    display: block;
    font-size: 20px;
    font-weight: 900;
    line-height: 1;
    margin-bottom: 4px;
}

.biz-stat__num--dark   { color: #334155; }
.biz-stat__num--brand  { color: #0F47AF; }
.biz-stat__num--green  { color: #059669; }
.biz-stat__num--danger { color: #dc2626; }

/* 中卡：月付改为蓝色 */
.biz-card--main .biz-stat__num--green { color: #0F47AF; }

/* 右卡：节省60%改为绿色 */
.biz-card--metrics .biz-stat__num--brand { color: #059669; }
.biz-card--metrics .biz-stat__num { color: #059669; }
.biz-stat__num--neutral { color: #64748b; font-size: 16px; }

.biz-stat__label {
    font-size: 12px;
    color: #475569;
    font-weight: 600;
    display: block;
}

.biz-stat__label--danger { color: #dc2626; }

/* ── 详情列表 ── */
.biz-detail-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

.biz-detail-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.biz-detail-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    flex-shrink: 0;
    margin-top: 6px;
}

.biz-detail-dot--neutral { background: #cbd5e1; }
.biz-detail-dot--brand   { background: #0F47AF; }

.biz-detail-text {
    font-size: 13px;
    color: #475569;
    line-height: 1.6;
}

/* ── 底部备注 ── */
.biz-card__footer {
    margin-top: auto;
    padding-top: 16px;
    border-top: 1px solid rgba(148,163,184,0.08);
}

.biz-footnote {
    font-size: 12px;
    color: #475569;
    line-height: 1.5;
    text-align: center;
}

.biz-footnote--center { text-align: center; }

/* ── 方案B：车电分离（视觉焦点） ── */
.biz-card--main {
    border: 2px solid #0F47AF;
    background: linear-gradient(180deg, #f8faff 0%, #ffffff 60px);
    box-shadow: 0 8px 32px rgba(15,71,175,0.12);
}

.biz-card--main:hover {
    box-shadow: 0 16px 48px rgba(15,71,175,0.2);
    transform: translateY(-6px);
}

/* 推荐方案徽章 */
.biz-card__badge-top {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #0F47AF, #00B876);
    color: #fff;
    font-size: 11px;
    font-weight: 800;
    padding: 4px 16px;
    border-radius: 0 0 12px 12px;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(15,71,175,0.25);
}

.biz-card--main .biz-card__title { color: #0F47AF; }

/* CTA 按钮 */
.biz-cta-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 13px 20px;
    border-radius: 12px;
    background: linear-gradient(135deg, #0F47AF, #0ea5e9);
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.25s ease;
    box-shadow: 0 4px 16px rgba(15,71,175,0.3);
    margin-bottom: 12px;
    letter-spacing: 0.3px;
}

.biz-cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(15,71,175,0.4);
    background: linear-gradient(135deg, #0a38a0, #0c8fd4);
}

.biz-cta-btn svg {
    transition: transform 0.2s ease;
}

.biz-cta-btn:hover svg {
    transform: translateX(3px);
}

.biz-card--main .biz-stat {
    background: rgba(15,71,175,0.04);
    border-color: rgba(15,71,175,0.1);
}

.biz-card--main .biz-detail-text { color: #334155; }

/* ── 指标对比卡片（灰边） ── */
.biz-card--metrics {
    border: 1.5px solid #c8d0db;
    background: linear-gradient(180deg, #fafbff, #fff);
}

.biz-card--metrics:hover {
    border-color: #94a3b8;
    box-shadow: 0 12px 40px rgba(148,163,184,0.12);
}

.biz-card--metrics .biz-card__title { color: #334155; }

.biz-card--metrics .biz-card__sub { color: #64748b; font-size: 12px; }

.biz-card--metrics .biz-card__icon svg { stroke: #64748b; }

.biz-card--metrics .biz-card__plan-tag--metrics {
    background: rgba(148,163,184,0.1);
    color: #64748b;
}

/* 指标卡片统计区：绿色调 */
.biz-card--metrics .biz-stat {
    background: rgba(5, 150, 105, 0.06);
    border-color: rgba(5, 150, 105, 0.15);
}

.biz-card--metrics .biz-detail-text { color: #475569; }

/* 指标卡片的对比圆点（交替灰/绿色） */
.biz-detail-dot--metrics-1 { background: #94a3b8; }
.biz-detail-dot--metrics-2 { background: #059669; }

.biz-metric-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.biz-metric-item { }

.biz-metric-label-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.biz-metric-label {
    font-size: 12px;
    font-weight: 700;
    color: #475569;
}

.biz-metric-delta {
    font-size: 11px;
    font-weight: 800;
    padding: 2px 8px;
    border-radius: 100px;
}

.biz-metric-delta--save {
    background: rgba(0,184,118,0.1);
    color: #059669;
}

.biz-metric-bar-row {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.biz-metric-bar-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
}

.biz-metric-bar-title {
    font-size: 10.5px;
    color: #94a3b8;
    font-weight: 600;
    width: 44px;
    flex-shrink: 0;
}

.biz-metric-bar-track {
    flex: 1;
    height: 6px;
    border-radius: 100px;
    background: rgba(148,163,184,0.1);
    overflow: hidden;
}

.biz-metric-bar-fill {
    height: 100%;
    border-radius: 100px;
    transition: width 1s cubic-bezier(0.16, 1, 0.3, 1);
    min-width: 4px;
}

.biz-metric-bar-fill--dark  { background: #cbd5e1; }
.biz-metric-bar-fill--brand { background: linear-gradient(90deg, #0F47AF, #00B876); }

.biz-metric-bar-val {
    font-size: 10.5px;
    font-weight: 700;
    color: #64748b;
    width: 56px;
    text-align: right;
    flex-shrink: 0;
}

/* ── 响应式 ── */
@media (max-width: 1100px) {
    .biz-cards {
        grid-template-columns: 1fr 1fr;
    }
    .biz-card--main {
        grid-column: 1 / -1;
        order: -1;
    }
}

@media (max-width: 680px) {
    .biz-cards {
        grid-template-columns: 1fr;
    }
    .biz-card--main {
        grid-column: auto;
        order: unset;
    }
}

/* =====================================================
  ② 商业流程图解
  ===================================================== */
.flow-diagram {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    border: 1px solid rgba(14,165,233,0.1);
    overflow: hidden;
}

/* 角色行 */
.fd-roles {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    border-bottom: 1px solid rgba(14,165,233,0.1);
    background: linear-gradient(135deg, #f0f9ff, #e8f4ff);
}

.fd-role {
    text-align: center;
    padding: 20px;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.fd-role + .fd-role {
    border-left: 1px solid rgba(14,165,233,0.1);
}

.fd-role-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
}

.fd-role-client .fd-role-icon { background: rgba(14,165,233,0.12); }
.fd-role-sevalo .fd-role-icon { background: rgba(16,185,129,0.12); }
.fd-role-catl .fd-role-icon { background: rgba(234,179,8,0.12); }

.fd-role span {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-dark);
}

/* 步骤 */
.fd-steps { padding: 16px 24px 24px; }

.fd-step {
    display: flex;
    align-items: stretch;
    margin-bottom: 16px;
    gap: 8px;
}

.fd-step:last-child { margin-bottom: 0; }

.fd-step-num {
    width: 36px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 900;
    color: var(--primary);
    background: rgba(14,165,233,0.06);
    border-radius: 8px;
    border: 1px solid rgba(14,165,233,0.1);
    letter-spacing: 1px;
}

.fd-step-content {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    align-items: center;
    gap: 8px;
    padding: 12px 0;
    border-bottom: 1px dashed rgba(14,165,233,0.1);
}

.fd-step:last-child .fd-step-content { border-bottom: none; }

.fd-step-box {
    padding: 16px 12px;
    border-radius: var(--radius);
    text-align: center;
    transition: var(--transition);
}

.fd-step-box:hover { transform: translateY(-3px); }

.fd-box-client {
    background: rgba(14,165,233,0.06);
    border: 1px solid rgba(14,165,233,0.15);
}

.fd-box-sevalo {
    background: rgba(16,185,129,0.06);
    border: 1px solid rgba(16,185,129,0.15);
}

.fd-box-catl {
    background: rgba(234,179,8,0.06);
    border: 1px solid rgba(234,179,8,0.15);
}

.fd-box-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px dashed rgba(14,165,233,0.15);
}

.fd-empty-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(14,165,233,0.2);
}

.fd-box-icon { font-size: 24px; margin-bottom: 8px; }

.fd-step-box strong {
    display: block;
    font-size: 13px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.fd-step-box p {
    font-size: 11px;
    color: var(--text-light);
    line-height: 1.5;
    margin: 0;
}

.fd-step-arrow {
    font-size: 18px;
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.5;
}

.fd-arrow-right::before { content: '→'; }
.fd-arrow-both::before { content: '⇌'; }

/* 图例 */
.fd-legend {
    display: flex;
    justify-content: center;
    gap: 32px;
    padding: 20px;
    border-top: 1px solid rgba(14,165,233,0.08);
    background: #f8fbff;
}

.fd-legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--text-light);
}

.legend-line {
    width: 32px;
    height: 3px;
    border-radius: 2px;
}

.legend-blue { background: var(--primary); }
.legend-green { background: var(--green); }
.legend-orange { background: #f59e0b; }

/* =====================================================
  ③ 双合同可视化
  ===================================================== */
.contracts-dual-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 0;
    align-items: stretch;
}

.contract-visual-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid rgba(14,165,233,0.1);
    transition: var(--transition-slow);
}

.contract-visual-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-blue);
}

.cvc-header {
    padding: 32px;
    color: #fff;
    position: relative;
}

.cvc-a .cvc-header {
    background: linear-gradient(135deg, #0369a1, #0ea5e9);
}

.cvc-b .cvc-header {
    background: linear-gradient(135deg, #059669, #10b981);
}

.cvc-badge {
    display: inline-block;
    padding: 4px 14px;
    background: rgba(255,255,255,0.2);
    border-radius: 100px;
    font-size: 11px;
    font-weight: 900;
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.cvc-header h3 {
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 6px;
}

.cvc-subtitle {
    font-size: 13px;
    color: rgba(255,255,255,0.7);
}

.cvc-icon-row {
    display: flex;
    justify-content: center;
    gap: 16px;
    padding: 20px 32px;
    border-bottom: 1px solid rgba(14,165,233,0.08);
    background: linear-gradient(135deg, #f0f9ff, #e8f4ff);
}

.cvc-b .cvc-icon-row {
    background: linear-gradient(135deg, #f0fdf4, #d1fae5);
}

.cvc-item-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(255,255,255,0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.cvc-items {
    padding: 24px 32px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    background: #fff;
}

.cvc-item {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.cvc-check {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 900;
    flex-shrink: 0;
    margin-top: 2px;
}

.cvc-a .cvc-check {
    background: rgba(14,165,233,0.1);
    color: var(--primary);
    border: 1px solid rgba(14,165,233,0.2);
}

.cvc-b .cvc-check {
    background: rgba(16,185,129,0.1);
    color: var(--green);
    border: 1px solid rgba(16,185,129,0.2);
}

.cvc-item strong {
    display: block;
    font-size: 14px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 2px;
}

.cvc-item span {
    font-size: 12px;
    color: var(--text-light);
    line-height: 1.5;
}

.cvc-price-note {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 18px 32px;
    background: linear-gradient(135deg, #f8fbff, #f0f9ff);
    border-top: 1px solid rgba(14,165,233,0.08);
    font-size: 13px;
    color: var(--text-light);
}

.cvc-b .cvc-price-note {
    background: linear-gradient(135deg, #f0fdf4, #ecfdf5);
    border-top-color: rgba(16,185,129,0.08);
}

.price-tag {
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 700;
    background: rgba(14,165,233,0.1);
    color: var(--primary);
}

.cvc-b .price-tag {
    background: rgba(16,185,129,0.1);
    color: var(--green);
}

.contracts-connector {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0 24px;
    position: relative;
}

.connector-circle {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--green));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 900;
    color: #fff;
    box-shadow: 0 0 32px rgba(14,165,233,0.4);
    position: relative;
    z-index: 2;
}

.connector-line {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, transparent, rgba(14,165,233,0.3), rgba(16,185,129,0.3), transparent);
    z-index: 1;
}

/* =====================================================
  ④ 对比分析 — 重构版本
  ===================================================== */

/* ── 资金成本：环形数据可视化 ── */
.vcost-wrap {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 40px;
    align-items: start;
}

.vcost-hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.vcost-ring-container {
    position: relative;
    width: 200px;
    height: 200px;
}

/* 玻璃拟态 + 光效增强 */
.vcost-ring-glass {
    background: rgba(255,255,255,0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 50%;
    border: 1px solid rgba(15,71,175,0.12);
    box-shadow:
        0 8px 32px rgba(15,71,175,0.12),
        0 0 0 1px rgba(255,255,255,0.6),
        inset 0 1px 0 rgba(255,255,255,0.8),
        0 0 40px rgba(15,71,175,0.08);
}

.vcost-ring-svg {
    width: 100%;
    height: 100%;
}

/* 外圈脉冲动画 */
.vcost-pulse-ring {
    position: absolute;
    inset: -8px;
    border-radius: 50%;
    border: 2px solid rgba(15,71,175,0.2);
    animation: pulseRing 2.5s ease-in-out infinite;
    pointer-events: none;
}

.vcost-pulse-ring::after {
    content: '';
    position: absolute;
    inset: -12px;
    border-radius: 50%;
    border: 1px solid rgba(0,184,118,0.12);
    animation: pulseRing 2.5s ease-in-out 0.5s infinite;
}

@keyframes pulseRing {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.6; }
    100% { transform: scale(1); opacity: 1; }
}

.vcost-ring-base {
    animation: ringDraw 1.5s ease forwards;
    filter: drop-shadow(0 0 6px rgba(239,68,68,0.3));
}

.vcost-ring-save {
    animation: ringDrawSave 1.5s ease 0.4s forwards;
    filter: drop-shadow(0 0 8px rgba(15,71,175,0.5));
}

@keyframes ringDraw {
    from { stroke-dashoffset: 502.65; }
    to { stroke-dashoffset: 125.66; }
}

@keyframes ringDrawSave {
    from { stroke-dashoffset: 502.65; }
    to { stroke-dashoffset: 377; }
}

.vcost-ring-center {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.vcost-big-pct {
    font-size: 40px;
    font-weight: 900;
    background: linear-gradient(135deg, #0F47AF, #00B876);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    display: block;
    letter-spacing: -1px;
    filter: drop-shadow(0 2px 8px rgba(15,71,175,0.2));
}

.vcost-pct-label {
    font-size: 12px;
    color: #64748b;
    font-weight: 600;
    letter-spacing: 0.5px;
    display: block;
    margin-top: 4px;
}

.vcost-bottom-cards {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    justify-content: center;
}

.vcost-stat-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 12px 16px;
    border-radius: 12px;
    border: 1.5px solid rgba(148,163,184,0.12);
    flex: 1;
    max-width: 110px;
    backdrop-filter: blur(8px);
    transition: all 0.3s ease;
}

.vcost-stat-card:hover {
    transform: translateY(-2px);
}

.vcost-old {
    background: rgba(239,68,68,0.04);
    border-color: rgba(239,68,68,0.15);
}

.vcost-old:hover {
    background: rgba(239,68,68,0.07);
    box-shadow: 0 4px 16px rgba(239,68,68,0.1);
}

.vcost-new {
    background: rgba(15,71,175,0.04);
    border-color: rgba(15,71,175,0.15);
}

.vcost-new:hover {
    background: rgba(15,71,175,0.08);
    border-color: rgba(15,71,175,0.25);
    box-shadow: 0 4px 16px rgba(15,71,175,0.12);
}

.vcost-stat-num {
    font-size: 24px;
    font-weight: 900;
    line-height: 1;
    display: block;
}

.vcost-old .vcost-stat-num { color: #b91c1c; text-decoration: line-through; text-decoration-color: #fca5a5; }
.vcost-new .vcost-stat-num { color: #0F47AF; }

.vcost-stat-desc {
    font-size: 12px;
    color: #475569;
    text-align: center;
    line-height: 1.4;
    margin-top: 4px;
    font-weight: 500;
}

.vcost-arrow {
    color: #94a3b8;
    display: flex;
    align-items: center;
    animation: arrowPulse 2s ease-in-out infinite;
}

@keyframes arrowPulse {
    0%, 100% { transform: translateX(0); opacity: 0.6; }
    50% { transform: translateX(4px); opacity: 1; }
}

/* 右侧详细分解 */
.vcost-detail {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding-top: 8px;
}

.vcost-detail-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 12px 16px;
    border-radius: 12px;
    background: rgba(255,255,255,0.6);
    border: 1px solid rgba(148,163,184,0.08);
    backdrop-filter: blur(8px);
    transition: all 0.3s ease;
}

.vcost-detail-item:hover {
    background: rgba(15,71,175,0.04);
    border-color: rgba(15,71,175,0.12);
    box-shadow: 0 4px 16px rgba(15,71,175,0.08);
    transform: translateX(4px);
}

.vcost-detail-label {
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.vcost-detail-num {
    font-size: 22px;
    font-weight: 900;
    line-height: 1;
    font-variant-numeric: tabular-nums;
}

.vcost-old-num { color: #b91c1c; }

.vcost-new-num {
    color: #0F47AF;
    background: linear-gradient(135deg, #0F47AF, #00B876);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.vcost-detail-name {
    font-size: 12px;
    font-weight: 600;
    color: #64748b;
}

.vcost-detail-bar-track {
    height: 6px;
    background: rgba(148,163,184,0.1);
    border-radius: 100px;
    overflow: hidden;
}

.vcost-detail-bar {
    height: 100%;
    border-radius: 100px;
    background: #e2e8f0;
    transition: width 1s ease;
}

.vcost-detail-bar.vcost-new-bar {
    background: linear-gradient(90deg, #0F47AF, #00B876);
    box-shadow: 0 0 8px rgba(15,71,175,0.3);
}

.vcost-detail-sub {
    font-size: 12px;
    color: #475569;
    line-height: 1.4;
}

.vcost-highlight-box {
    margin-top: 8px;
    padding: 14px 18px;
    background: linear-gradient(135deg, rgba(15,71,175,0.06), rgba(0,184,118,0.04));
    border: 1.5px solid rgba(15,71,175,0.15);
    border-radius: 12px;
    font-size: 13px;
    color: #374151;
    line-height: 1.7;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(15,71,175,0.08), inset 0 1px 0 rgba(255,255,255,0.6);
}

.vcost-highlight-box::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, #0F47AF, #00B876, #0F47AF);
    background-size: 200% 100%;
    animation: shimmerLine 3s linear infinite;
}

@keyframes shimmerLine {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ── 运维保障：现代服务矩阵 ── */
.ops-grid-new {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 16px;
}

.ops-card-new {
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(148,163,184,0.08);
    backdrop-filter: blur(8px);
    transition: all 0.3s ease;
}

.ops-card-new:hover {
    transform: translateY(-2px);
}

.ops-card-old-new {
    background: linear-gradient(180deg, rgba(254,242,242,0.7), rgba(255,255,255,0.5));
}

.ops-card-old-new:hover {
    box-shadow: 0 8px 24px rgba(239,68,68,0.08);
}

.ops-card-new-main {
    background: linear-gradient(180deg, rgba(240,248,255,0.8), rgba(255,255,255,0.5));
    border-color: rgba(15,71,175,0.12);
}

.ops-card-new-main:hover {
    box-shadow: 0 8px 24px rgba(15,71,175,0.1), 0 0 20px rgba(15,71,175,0.05);
}

.ops-card-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 20px;
    font-size: 13px;
    font-weight: 700;
    border-bottom: 1px solid rgba(148,163,184,0.06);
}

.ops-header-old {
    color: #64748b;
    background: rgba(254,226,226,0.5);
    border-bottom-color: rgba(239,68,68,0.1);
}

.ops-header-old svg { stroke: #94a3b8; }

.ops-header-new {
    color: #0F47AF;
    background: rgba(15,71,175,0.06);
    border-bottom-color: rgba(15,71,175,0.1);
}

.ops-header-new svg { stroke: #0F47AF; }

.ops-svc-list {
    padding: 8px 0;
}

.ops-svc-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    transition: background 0.2s ease, transform 0.2s ease;
}

.ops-svc-item:hover {
    transform: translateX(4px);
}

.ops-card-old-new .ops-svc-item:hover { background: rgba(239,68,68,0.03); }
.ops-card-new-main .ops-svc-item:hover { background: rgba(15,71,175,0.03); }

.ops-svc-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: box-shadow 0.2s ease;
}

.ops-svc-icon svg { width: 16px; height: 16px; }

.ops-svc-icon-bad { background: rgba(239,68,68,0.06); }
.ops-svc-icon-bad svg { stroke: #ef4444; }

.ops-svc-icon-good { background: rgba(15,71,175,0.08); }
.ops-svc-icon-good svg { stroke: #0F47AF; }

.ops-svc-badge {
    padding: 3px 10px;
    border-radius: 100px;
    font-size: 11px;
    font-weight: 800;
    flex-shrink: 0;
    letter-spacing: 0.3px;
}

.ops-badge-bad {
    background: rgba(239,68,68,0.08);
    color: #ef4444;
}

.ops-badge-good {
    background: rgba(15,71,175,0.1);
    color: #0F47AF;
    box-shadow: 0 0 8px rgba(15,71,175,0.1);
}

/* ── 残值图表：深色背景 ── */
.vc-chart-dark {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    border-radius: 16px;
    padding: 16px;
    border: 1px solid rgba(255,255,255,0.06);
    box-shadow: 0 8px 32px rgba(0,0,0,0.3), inset 0 1px 0 rgba(255,255,255,0.04);
    position: relative;
    overflow: hidden;
}

/* 角落光点装饰 */
.vc-chart-dark::before {
    content: '';
    position: absolute;
    top: -20px; right: -20px;
    width: 80px; height: 80px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(52,211,153,0.08) 0%, transparent 70%);
    pointer-events: none;
}

.vc-chart-dark::after {
    content: '';
    position: absolute;
    bottom: -20px; left: -20px;
    width: 60px; height: 60px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(248,113,113,0.06) 0%, transparent 70%);
    pointer-events: none;
}

.vc-y-dark { color: rgba(255,255,255,0.4); }
.vc-x-dark { color: rgba(255,255,255,0.4); }

.vc-svg-dark {
    background: transparent;
    border-radius: 0;
}
.compare-tabs {
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap;
}

.compare-tab {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 18px;
    border-radius: 20px;
    font-size: 12.5px;
    font-weight: 600;
    background: var(--bg-white);
    border: 1.5px solid rgba(148,163,184,0.2);
    color: var(--text-light);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: "楷体", "楷体_GB2312", KaiTi, STKaiti, "Microsoft YaHei", sans-serif;
    letter-spacing: 0.3px;
    position: relative;
    overflow: hidden;
}

.compare-tab::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15,71,175,0.05), rgba(0,184,118,0.05));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.compare-tab:hover {
    border-color: rgba(15,71,175,0.35);
    color: #0F47AF;
    background: rgba(15,71,175,0.04);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(15,71,175,0.15), 0 0 0 1px rgba(15,71,175,0.1);
}

.compare-tab:hover::before { opacity: 1; }

.compare-tab.active {
    background: linear-gradient(135deg, #0F47AF, #0080c0);
    border-color: transparent;
    color: #fff;
    box-shadow: 0 6px 24px rgba(15,71,175,0.4), 0 0 20px rgba(15,71,175,0.2), inset 0 1px 0 rgba(255,255,255,0.15);
    transform: translateY(-1px);
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.compare-tab.active svg { stroke: rgba(255,255,255,0.9); }
.compare-tab:not(.active) svg { stroke: currentColor; }

.compare-panels {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 24px rgba(15,23,42,0.08), 0 1px 4px rgba(15,23,42,0.04);
    border: 1px solid rgba(148,163,184,0.1);
    overflow: hidden;
    position: relative;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

/* 顶部渐变光线装饰 */
.compare-panels::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, #0F47AF, #00B876, #0F47AF);
    background-size: 200% 100%;
    animation: shimmerLine 4s linear infinite;
}

.compare-panel {
    display: none;
    padding: 20px 24px;
}

.compare-panel.active { display: block; }

/* 成本对比面板 */
.compare-visual {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 0;
    margin-bottom: 16px;
    align-items: start;
}

.cv-side {
    padding: 16px 20px;
}

.cv-side h4 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.cv-side-old h4 { color: #ef4444; }
.cv-side-new h4 { color: var(--green); }

.cost-bar-wrap {
    margin-bottom: 12px;
}

.cost-label {
    font-size: 11px;
    color: var(--text-light);
    margin-bottom: 4px;
}

.cost-bar-track {
    background: rgba(14,165,233,0.06);
    border-radius: 100px;
    height: 26px;
    overflow: hidden;
    position: relative;
}

.cost-bar {
    height: 100%;
    border-radius: 100px;
    display: flex;
    align-items: center;
    padding: 0 10px;
    font-size: 11px;
    font-weight: 600;
    color: #fff;
    transition: width 1s ease;
    width: var(--bar-w);
}

.cost-bar-old { background: linear-gradient(90deg, #dc2626, #ef4444); }
.cost-bar-new { background: linear-gradient(90deg, #0369a1, #0ea5e9); }
.cost-bar-save {
    background: linear-gradient(90deg, #0ea5e9 0%, #38bdf8 100%);
}
.cost-bar-save span {
    font-weight: 700;
    letter-spacing: 0.5px;
}

.compare-total {
    margin-top: 20px;
    padding: 14px 22px;
    border-radius: var(--radius);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.compare-total-old {
    background: rgba(239,68,68,0.06);
    border: 1px solid rgba(239,68,68,0.15);
}

.compare-total-new {
    background: linear-gradient(135deg, rgba(14,165,233,0.12) 0%, rgba(56,189,248,0.08) 100%);
    border: 1px solid rgba(14,165,233,0.25);
    box-shadow: 0 2px 12px rgba(14,165,233,0.08), inset 0 1px 0 rgba(255,255,255,0.5);
}

.compare-total span { font-size: 13px; color: #475569; font-weight: 500; }

.compare-total-old strong {
    font-size: 24px;
    font-weight: 900;
    color: #ef4444;
}

.compare-total-new strong {
    font-size: 24px;
    font-weight: 900;
    color: #0369a1;
}

.compare-total-new strong em {
    display: inline-block;
    font-size: 13px;
    font-style: normal;
    color: #0ea5e9;
    font-weight: 700;
    margin-left: 6px;
    padding: 2px 10px;
    background: rgba(14,165,233,0.15);
    border-radius: 100px;
}

.cv-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 20px;
}

.cv-divider-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--green));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: 900;
    color: #fff;
}

.compare-insight {
    margin-top: 16px;
    padding: 14px 18px;
    background: linear-gradient(135deg, rgba(15,71,175,0.07), rgba(0,184,118,0.05));
    border: 1px solid rgba(15,71,175,0.15);
    border-left: 3px solid #0F47AF;
    border-radius: var(--radius);
    font-size: 13px;
    color: var(--text-body);
    display: flex;
    align-items: flex-start;
    gap: 12px;
    line-height: 1.6;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(15,71,175,0.06);
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

.compare-insight::after {
    content: '';
    position: absolute;
    top: 0; right: 0;
    width: 80px;
    height: 80px;
    background: radial-gradient(circle, rgba(15,71,175,0.06) 0%, transparent 70%);
    pointer-events: none;
}

.ci-icon { font-size: 20px; flex-shrink: 0; display: inline-flex; align-items: center; }

.compare-insight strong { color: #0F47AF; }

/* 风险管控 */
.risk-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}

.risk-item {
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s ease;
}

.risk-item:hover { transform: translateY(-2px); }

.risk-header {
    padding: 16px 24px;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

/* 传统模式 - 深色警示风格 */
.risk-header-old {
    background: linear-gradient(135deg, rgba(239,68,68,0.15), rgba(239,68,68,0.08));
    color: #dc2626;
    border-bottom: 2px solid rgba(239,68,68,0.3);
}

.risk-header-new {
    background: linear-gradient(135deg, rgba(15,71,175,0.12), rgba(0,184,118,0.08));
    color: #0F47AF;
    border-bottom: 2px solid rgba(15,71,175,0.2);
}

.risk-list {
    padding: 16px;
    border: 1px solid rgba(148,163,184,0.08);
    border-top: none;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    display: flex;
    flex-direction: column;
    gap: 14px;
    backdrop-filter: blur(4px);
}

/* 传统风险列表 - 暗调 */
.risk-item-old .risk-list {
    background: linear-gradient(180deg, rgba(254,242,242,0.8), rgba(255,255,255,0.6));
}

/* 千里马列表 - 亮调 */
.risk-item-new .risk-list {
    background: linear-gradient(180deg, rgba(240,248,255,0.8), rgba(255,255,255,0.6));
}

.risk-row {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.risk-icon-bad, .risk-icon-good { font-size: 18px; flex-shrink: 0; }

.risk-row > div { flex: 1; }

.risk-row strong {
    display: block;
    font-size: 13px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 6px;
}

.risk-meter {
    height: 6px;
    background: rgba(148,163,184,0.1);
    border-radius: 100px;
    overflow: hidden;
    margin-bottom: 4px;
}

.risk-fill {
    height: 100%;
    border-radius: 100px;
    transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
    width: var(--fill);
    position: relative;
}

.risk-fill::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: inherit;
    box-shadow: 0 0 6px currentColor;
}

.risk-fill-high { background: linear-gradient(90deg, #dc2626, #ef4444); box-shadow: 0 0 8px rgba(239,68,68,0.3); }
.risk-fill-mid { background: linear-gradient(90deg, #d97706, #f59e0b); box-shadow: 0 0 8px rgba(249,115,22,0.3); }
.risk-fill-low { background: linear-gradient(90deg, #059669, #10b981); box-shadow: 0 0 8px rgba(16,185,129,0.3); }

.risk-level {
    font-size: 11px;
    font-weight: 600;
}

.risk-high { color: #dc2626; }
.risk-mid { color: #d97706; }
.risk-low { color: #059669; }

/* 技术升级 */
.tech-tl-title {
    text-align: center;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-light);
    margin-bottom: 24px;
}

.tech-tl-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-bottom: 40px;
    position: relative;
    padding: 16px 40px;
}

.tl-node {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 2;
}

.tl-dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #94a3b8;
    border: 3px solid rgba(148,163,184,0.3);
    margin-bottom: 8px;
    transition: all 0.3s ease;
}

.tl-current .tl-dot,
.tl-node:hover .tl-dot {
    background: linear-gradient(135deg, #0F47AF, #00B876);
    border-color: rgba(15,71,175,0.5);
    box-shadow: 0 0 16px rgba(15,71,175,0.4), 0 0 32px rgba(15,71,175,0.2);
    animation: nodePulse 2s ease-in-out infinite;
}

@keyframes nodePulse {
    0%, 100% { box-shadow: 0 0 16px rgba(15,71,175,0.4), 0 0 32px rgba(15,71,175,0.2); }
    50% { box-shadow: 0 0 24px rgba(15,71,175,0.6), 0 0 48px rgba(15,71,175,0.3); }
}

.tl-label {
    font-size: 11px;
    text-align: center;
    color: var(--text-light);
    line-height: 1.5;
}

.tl-badge {
    margin-top: 6px;
    padding: 2px 10px;
    border-radius: 100px;
    font-size: 10px;
    font-weight: 700;
}

.tl-badge-now { background: rgba(15,71,175,0.12); color: #0F47AF; border: 1px solid rgba(15,71,175,0.2); }
.tl-badge-soon { background: rgba(0,184,118,0.12); color: #059669; border: 1px solid rgba(0,184,118,0.2); }
.tl-badge-future { background: rgba(99,102,241,0.1); color: #6366f1; border: 1px solid rgba(99,102,241,0.15); }

.tl-line {
    height: 2px;
    width: 80px;
    background: linear-gradient(90deg, #94a3b8, #0F47AF, #00B876);
    opacity: 0.25;
    flex-shrink: 0;
    position: relative;
}

.tl-line::before {
    content: '';
    position: absolute;
    top: -2px;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, transparent, rgba(15,71,175,0.4), rgba(0,184,118,0.4), transparent);
    filter: blur(4px);
}

.tech-compare {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.tech-mode {
    padding: 24px;
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

.tech-mode:hover {
    transform: translateY(-3px);
}

.tech-mode-old {
    background: rgba(239,68,68,0.04);
    border: 1px solid rgba(239,68,68,0.12);
}

.tech-mode-old:hover {
    background: rgba(239,68,68,0.07);
    border-color: rgba(239,68,68,0.2);
    box-shadow: 0 8px 24px rgba(239,68,68,0.08);
}

.tech-mode-new {
    background: rgba(15,71,175,0.04);
    border: 1px solid rgba(15,71,175,0.12);
}

.tech-mode-new:hover {
    background: rgba(15,71,175,0.07);
    border-color: rgba(15,71,175,0.2);
    box-shadow: 0 8px 24px rgba(15,71,175,0.1), 0 0 20px rgba(15,71,175,0.05);
}

.tm-label {
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 12px;
    display: block;
}

.tm-label-old { color: #dc2626; }
.tm-label-new { color: #0F47AF; }

.tech-mode p {
    font-size: 14px;
    color: var(--text-body);
    line-height: 1.7;
    margin-bottom: 16px;
}

.tm-icon {
    font-size: 14px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
}

.tech-mode-old .tm-icon { color: #dc2626; }
.tech-mode-new .tm-icon { color: #0F47AF; }

/* 运维保障 */
.ops-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}

.ops-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.ops-title {
    padding: 14px 20px;
    font-size: 13px;
    font-weight: 700;
}

.ops-title-old { background: rgba(239,68,68,0.08); color: #ef4444; }
.ops-title-new { background: rgba(16,185,129,0.08); color: var(--green); }

.ops-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    font-size: 13px;
    border-bottom: 1px solid rgba(14,165,233,0.06);
}

.ops-item:last-child { border-bottom: none; }

.ops-bad { background: #fff; color: var(--text-body); }
.ops-good { background: #fff; color: var(--text-body); }

.ops-card-old { border: 1px solid rgba(239,68,68,0.12); }
.ops-card-new { border: 1px solid rgba(16,185,129,0.12); }

/* 残值图表 */
.value-compare {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 40px;
    align-items: start;
}

.vc-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-light);
    margin-bottom: 16px;
}

.vc-chart {
    display: flex;
    gap: 12px;
    align-items: stretch;
}

.vc-y-axis {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    font-size: 12px;
    color: #475569;
    padding: 8px 0;
    width: 36px;
    text-align: right;
}

.vc-curves { flex: 1; position: relative; }

.vc-svg {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, #f0f9ff, #f8fbff);
    border-radius: var(--radius);
}

.vc-path-old { animation: drawPath 1.5s ease forwards; }
.vc-path-new { animation: drawPath 1.5s ease 0.3s forwards; }

@keyframes drawPath {
    from { stroke-dashoffset: 600; }
    to { stroke-dashoffset: 0; }
}

.vc-path-old, .vc-path-new {
    stroke-dasharray: 600;
    stroke-dashoffset: 600;
}

.vc-x-axis {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: #475569;
    margin-top: 8px;
    padding: 0 8px;
}

.vt-item {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    margin-bottom: 20px;
    padding: 16px;
    border-radius: 12px;
    border: 1px solid rgba(148,163,184,0.06);
    transition: all 0.3s ease;
}

.vt-item:hover {
    transform: translateX(4px);
    box-shadow: 0 4px 16px rgba(15,23,42,0.06);
}

.vt-bad:hover { background: rgba(254,242,242,0.6); border-color: rgba(239,68,68,0.1); }
.vt-good:hover { background: rgba(240,248,255,0.6); border-color: rgba(15,71,175,0.1); }

.vt-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

.vt-bad { background: rgba(239,68,68,0.08); }
.vt-bad svg { stroke: #dc2626; }
.vt-good { background: rgba(15,71,175,0.08); }
.vt-good svg { stroke: #0F47AF; }

.vt-item strong {
    display: block;
    font-size: 14px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.vt-item p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.6;
    margin: 0;
}

/* =====================================================
  ⑤ 场景卡片（精致紧凑版）
  ===================================================== */
.model-scenarios-section {
    padding: 56px 0;
}

.scenarios-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
}

.sc-card {
    position: relative;
    height: 210px;
    border-radius: 16px;
    overflow: hidden;
    cursor: pointer;
    perspective: 1000px;
    border: 1.5px solid rgba(15,71,175,0.08);
    background: #fff;
    box-shadow: 0 2px 8px rgba(15,71,175,0.05);
    transition:
        transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
        box-shadow 0.3s ease,
        border-color 0.3s ease;
}

.sc-card:hover {
    transform: translateY(-5px);
    border-color: rgba(15,71,175,0.18);
    box-shadow: 0 12px 32px rgba(15,71,175,0.12);
}

.sc-card-accent {
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    z-index: 2;
    transition: height 0.3s ease;
}

.sc-card:hover .sc-card-accent {
    height: 3px;
}

.sc-card-front,
.sc-card-back {
    position: absolute;
    inset: 0;
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 16px;
    backface-visibility: hidden;
    transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.35s ease;
}

.sc-card-front {
    background: #fff;
    padding-top: 20px;
}

.sc-card-back {
    background: linear-gradient(160deg, #0369a1 0%, #0ea5e9 100%);
    color: #fff;
    transform: rotateY(180deg);
    opacity: 0;
    padding: 14px;
}

.sc-card.flipped .sc-card-front,
.sc-card:hover .sc-card-front {
    transform: rotateY(-180deg);
    opacity: 0;
}

.sc-card.flipped .sc-card-back,
.sc-card:hover .sc-card-back {
    transform: rotateY(0deg);
    opacity: 1;
}

.sc-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(15,71,175,0.08), rgba(6,182,212,0.06));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 10px;
    font-size: 24px;
    line-height: 1;
    transition: all 0.3s ease;
    box-shadow: none;
}

.sc-card:hover .sc-icon {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 4px 14px rgba(15,71,175,0.15);
}

.sc-icon svg {
    width: 26px;
    height: 26px;
}

.sc-card-front h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-dark);

    margin-bottom: 5px;
    line-height: 1.3;
}

.sc-card-front p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.4;
}

.sc-card-back h4 {
    font-size: 13px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 8px;
}

.sc-card-back ul {
    text-align: left;
    width: 100%;
    margin-bottom: 8px;
    list-style: none;
    padding: 0;
}

.sc-card-back li {
    font-size: 12px;
    color: rgba(255,255,255,0.88);
    padding: 3px 0;
    line-height: 1.4;
}

.sc-card-back li::before {
    content: '✓ ';
    color: #6ee7b7;
    font-weight: 700;
}

.sc-data {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
}

.sc-data span {
    font-size: 12px;
    color: rgba(255,255,255,0.85);
}

.sc-data strong {
    color: #fff;
    font-weight: 700;
}

/* =====================================================
/* =====================================================
  ⑥ 成本计算器（浅色主题 + 等高双栏布局）
  ===================================================== */
.model-calculator-section {
    background: linear-gradient(180deg, #F8FAFC 0%, #EEF2FF 100%) !important;
    padding: 72px 0;
}

.model-calculator-section .section-title { color: #0F47AF; }
.model-calculator-section .section-subtitle { color: #64748b; }

/* ── 等高双栏布局 ── */
.calc-wrapper {
    display: flex;
    gap: 20px;
    align-items: stretch;   /* 关键：让左右卡片等高 */
}

.calc-left,
.calc-right {
    flex: 1;               /* 关键：左右各占一半 */
    display: flex;
    flex-direction: column;
}

/* ── 表单卡片（浅色 + 顶部蓝色发光条） ── */
.calc-form-wrap {
    background: #fff;
    border-radius: 20px;
    border: 1.5px solid rgba(15,71,175,0.1);
    padding: 28px 24px;
    position: relative;
    overflow: hidden;
    flex: 1;
    display: flex;
    flex-direction: column;
    box-shadow: 0 4px 20px rgba(15,71,175,0.06);
    transition: box-shadow 0.3s ease, border-color 0.3s ease;
}

.calc-form-wrap:hover {
    border-color: rgba(15,71,175,0.2);
    box-shadow: 0 8px 32px rgba(15,71,175,0.1);
}

/* 浅色顶部发光条 */
.calc-form-accent {
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, #0F47AF, #06B6D4);
    box-shadow: 0 0 16px rgba(15,71,175,0.3);
}

.calc-form-title {
    font-size: 13px;
    font-weight: 700;
    color: #475569;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 6px;
    letter-spacing: 0.5px;
}

.calc-form-title svg { stroke: #0F47AF; }

.calc-group {
    margin-bottom: 16px;
}

.calc-group label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: #475569;
    margin-bottom: 8px;
}

.calc-tip {
    font-size: 10px;
    font-weight: 400;
    color: #64748b;
    margin-left: 6px;
}

.calc-input-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.calc-btn {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    border: 1.5px solid rgba(15,71,175,0.2);
    background: rgba(15,71,175,0.04);
    color: #0F47AF;
    font-size: 14px;
    line-height: 1;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.calc-btn:hover {
    background: #0F47AF;
    color: #fff;
    border-color: #0F47AF;
    box-shadow: 0 4px 12px rgba(15,71,175,0.3);
}

.calc-input-row input[type="number"] {
    flex: 1;
    padding: 8px 10px;
    border: 1.5px solid rgba(15,71,175,0.15);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 700;
    text-align: center;
    color: #1e293b;
    background: #f8fafc;
    transition: all 0.2s ease;
    min-width: 0;
}

.calc-input-row input[type="number"]:focus {
    border-color: #0F47AF;
    background: #fff;
    box-shadow: 0 0 0 2px rgba(15,71,175,0.1);
    outline: none;
}

.calc-unit {
    font-size: 12px;
    color: #64748b;
    width: 36px;
    flex-shrink: 0;
}

/* 浅色滑块 */
.calc-slider {
    width: 100%;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: linear-gradient(90deg, rgba(15,71,175,0.15), rgba(6,182,212,0.15));
    border-radius: 100px;
    outline: none;
    cursor: pointer;
}

.calc-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0F47AF, #06B6D4);
    border: 2px solid #fff;
    box-shadow: 0 2px 8px rgba(15,71,175,0.3);
    cursor: pointer;
}

.calc-years {
    display: flex;
    gap: 8px;
}

.year-btn {
    flex: 1;
    padding: 8px 4px;
    border-radius: 8px;
    border: 1.5px solid rgba(15,71,175,0.15);
    background: #fff;
    font-size: 13px;
    font-weight: 600;
    color: #64748b;
    cursor: pointer;
    transition: all 0.2s ease;
}

.year-btn:hover {
    border-color: rgba(15,71,175,0.3);
    color: #0F47AF;
    background: rgba(15,71,175,0.04);
}

.year-btn.active {
    background: linear-gradient(135deg, #0F47AF, #0080c0);
    border-color: transparent;
    color: #fff;
    box-shadow: 0 4px 12px rgba(15,71,175,0.25);
}

.calc-rent-rate {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.calc-rent-rate input { flex: 1; min-width: 100px; }

.rate-min, .rate-max {
    font-size: 12px;
    color: #475569;
    flex-shrink: 0;
}

#rentRateDisplay {
    font-size: 18px;
    font-weight: 900;
    color: #0F47AF;
    min-width: 42px;
    text-align: right;
    flex-shrink: 0;
}

.calc-submit-btn {
    width: 100%;
    padding: 13px;
    border-radius: 10px;
    border: none;
    background: linear-gradient(135deg, #0F47AF, #0080c0);
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: auto;       /* 关键：按钮贴底 */
    transition: all 0.25s ease;
    box-shadow: 0 4px 16px rgba(15,71,175,0.3);
    letter-spacing: 0.3px;
}

.calc-submit-btn:hover {
    box-shadow: 0 6px 24px rgba(15,71,175,0.4);
    transform: translateY(-1px);
    background: linear-gradient(135deg, #0a38a0, #0070b0);
}

.calc-submit-btn svg { stroke: #fff; }

/* ── 结果卡片（浅色 + 顶部绿色发光条） ── */
.calc-result-wrap {
    background: #fff;
    border-radius: 20px;
    border: 1.5px solid rgba(16,185,129,0.12);
    padding: 28px 24px;
    position: relative;
    overflow: hidden;
    flex: 1;
    display: flex;
    flex-direction: column;
    box-shadow: 0 4px 20px rgba(16,185,129,0.06);
    transition: box-shadow 0.3s ease, border-color 0.3s ease;
}

.calc-result-wrap:hover {
    border-color: rgba(16,185,129,0.25);
    box-shadow: 0 8px 32px rgba(16,185,129,0.1);
}

/* 绿色顶部发光条 */
.calc-result-accent {
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, #10B981, #06B6D4);
    box-shadow: 0 0 16px rgba(16,185,129,0.3);
}

.calc-result-title {
    font-size: 13px;
    font-weight: 700;
    color: #475569;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 6px;
    letter-spacing: 0.5px;
}

.calc-result-title svg { stroke: #10B981; }

/* 结果柱状条 */
.result-bars {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 20px;
}

.rb-label-row {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 6px;
}

.rb-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.rb-dot-old { background: #ef4444; box-shadow: 0 0 6px rgba(239,68,68,0.4); }
.rb-dot-new { background: #10b981; box-shadow: 0 0 6px rgba(16,185,129,0.4); }

.rb-label {
    font-size: 12px;
    color: #475569;
    flex: 1;
}

.rb-val {
    font-size: 11px;
    font-weight: 800;
}

.rb-val-old { color: #ef4444; }
.rb-val-new { color: #10b981; }

.rb-track {
    height: 10px;
    background: #f1f5f9;
    border-radius: 100px;
    overflow: hidden;
}

.rb-bar {
    height: 100%;
    border-radius: 100px;
    transition: width 0.8s cubic-bezier(0.23,1,0.32,1);
}

.rb-bar-old { background: linear-gradient(90deg, #dc2626, #ef4444); }
.rb-bar-new { background: linear-gradient(90deg, #059669, #10b981); box-shadow: 0 2px 8px rgba(16,185,129,0.3); }

/* 三个指标卡 */
.result-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 20px;
}

.rs-item {
    text-align: center;
    padding: 14px 6px;
    border-radius: 12px;
    background: #f8fafc;
    border: 1.5px solid rgba(148,163,184,0.1);
}

.rs-save {
    background: rgba(16,185,129,0.06);
    border-color: rgba(16,185,129,0.15);
}

.rs-rate {
    background: rgba(15,71,175,0.06);
    border-color: rgba(15,71,175,0.15);
}

.rs-month {
    background: rgba(234,179,8,0.06);
    border-color: rgba(234,179,8,0.15);
}

.rs-num {
    font-size: 18px;
    font-weight: 900;
    line-height: 1.1;
    transition: transform 0.15s ease;
}

.rs-num.animating { transform: scale(1.1); }

.rs-save .rs-num { color: #10b981; }
.rs-rate .rs-num { color: #0F47AF; }
.rs-month .rs-num { color: #d97706; }

.rs-label {
    font-size: 10px;
    color: #64748b;
    margin-top: 4px;
}

/* 圆环图区域 */
.result-breakdown {
    margin-bottom: 16px;
    padding: 16px;
    background: #f8fafc;
    border-radius: 12px;
    border: 1px solid rgba(148,163,184,0.08);
}

.rb-title {
    font-size: 11px;
    font-weight: 700;
    color: #64748b;
    margin-bottom: 12px;
    text-align: center;
}

.rb-compare {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

.rbc-item { text-align: center; }

.rbc-donut {
    width: 64px;
    height: 64px;
    margin: 0 auto 6px;
    position: relative;
}

.rbc-donut svg { width: 100%; height: 100%; transform: rotate(-90deg); }

.rbc-donut span {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 900;
}

.rbc-donut-old span { color: #ef4444; }
.rbc-donut-new span { color: #10b981; }

.rbc-legend {
    font-size: 10px;
    color: #64748b;
    text-align: center;
}

.rbc-vs {
    font-size: 12px;
    font-weight: 800;
    color: #475569;
}

.calc-cta-btn {
    width: 100%;
    padding: 13px;
    border-radius: 10px;
    border: none;
    background: linear-gradient(135deg, #10B981, #06B6D4);
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: auto;       /* 关键：按钮贴底 */
    transition: all 0.25s ease;
    box-shadow: 0 4px 16px rgba(16,185,129,0.3);
    letter-spacing: 0.3px;
}

.calc-cta-btn:hover {
    box-shadow: 0 6px 24px rgba(16,185,129,0.4);
    transform: translateY(-1px);
    background: linear-gradient(135deg, #059669, #0891b2);
}

.calc-cta-btn svg { stroke: #fff; }

/* 响应式 */
@media (max-width: 768px) {
    .calc-wrapper { flex-direction: column; }
    .result-stats { grid-template-columns: repeat(3, 1fr); }
}

/* =====================================================
  ⑦ FAQ
  ===================================================== */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(14,165,233,0.1);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition), border-color 0.3s ease, box-shadow 0.3s ease;
    position: relative;
}

/* 展开时左侧蓝色竖线 */
.faq-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--primary);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.faq-item.open {
    box-shadow: var(--shadow-blue);
    border-color: rgba(14,165,233,0.25);
}

.faq-item.open::before {
    opacity: 1;
}

.faq-question {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    cursor: pointer;
    user-select: none;
    transition: var(--transition), background 0.2s ease;
}

.faq-question:hover { background: rgba(14,165,233,0.03); }

.faq-q-icon {
    width: 30px;
    height: 30px;
    border-radius: 8px;
    background: rgba(14,165,233,0.1);
    color: var(--primary);
    font-size: 14px;
    font-weight: 900;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: transform 0.2s ease, background 0.2s ease;
}

.faq-item.open .faq-q-icon {
    background: var(--primary);
    color: #fff;
    transform: scale(1.05);
}

.faq-question h4 {
    flex: 1;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0;
    line-height: 1.5;
    transition: color 0.2s ease;
}

.faq-item.open .faq-question h4 {
    color: var(--primary);
}

.faq-toggle {
    font-size: 22px;
    color: var(--primary);
    line-height: 1;
    transition: transform 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    flex-shrink: 0;
}

.faq-item.open .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
    padding: 0;
}

.faq-item.open .faq-answer {
    /* max-height由JS计算，这里设置一个较大的值 */
    max-height: 600px;
}

.faq-answer p {
    padding: 0 24px 20px 70px;
    font-size: 14px;
    color: var(--text-body);
    line-height: 1.8;
    border-top: 1px solid rgba(14,165,233,0.08);
    margin: 0;
    padding-top: 16px;
}

/* =====================================================
  CTA区域
  ===================================================== */
.model-cta-section {
    background: #f8fbff;
    padding: 32px 0;
}

.model-cta {
    background: var(--grad-hero);
    border-radius: 16px;
    padding: 28px 40px;
    position: relative;
    overflow: hidden;
    text-align: center;
}

/* CTA按钮脉冲动画 */
.cta-btns .btn-primary {
    position: relative;
    animation: ctaPulse 2s ease-in-out infinite;
}

@keyframes ctaPulse {
    0%, 100% {
        box-shadow: 0 4px 15px rgba(14,165,233,0.3);
    }
    50% {
        box-shadow: 0 4px 25px rgba(14,165,233,0.5), 0 0 40px rgba(14,165,233,0.2);
    }
}

.cta-btns .btn-primary:hover {
    animation: none;
    box-shadow: 0 6px 30px rgba(14,165,233,0.5);
}

.cta-bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(14,165,233,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(14,165,233,0.03) 1px, transparent 1px);
    background-size: 32px 32px;
    pointer-events: none;
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-badge {
    display: inline-block;
    padding: 4px 14px;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 100px;
    font-size: 11px;
    font-weight: 700;
    color: rgba(255,255,255,0.9);
    margin-bottom: 12px;
    letter-spacing: 0.5px;
}

.cta-content h2 {
    font-size: 22px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 8px;
    line-height: 1.3;
}

.cta-content p {
    font-size: 13px;
    color: rgba(255,255,255,0.7);
    margin-bottom: 16px;
}

/* =====================================================
   车电分离 - 紧凑CTA横条
   ===================================================== */

/* 横条容器：固定高度极窄，上色下白 */
.bs-cta-bar {
    background: #fff;
    border-top: 2px solid transparent;
    border-image: linear-gradient(90deg, #0F47AF, #10B981) 1;
    margin: 0 auto 0;
    padding: 0;
    box-shadow: 0 -2px 20px rgba(15,71,175,0.06);
}

.bs-cta-inner {
    max-width: 900px;
    margin: 0 auto;
    padding: 18px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

/* 左侧：图标 + 文案 */
.bs-cta-left {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    min-width: 0;
}

.bs-cta-icon {
    font-size: 22px;
    flex-shrink: 0;
    line-height: 1;
}

.bs-cta-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.bs-cta-title {
    font-size: 15px;
    font-weight: 800;
    color: #1e293b;
    background: linear-gradient(90deg, #0F47AF, #10B981);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    white-space: nowrap;
}

.bs-cta-sub {
    font-size: 12px;
    color: #64748b;
    white-space: nowrap;
}

/* 右侧：双按钮 */
.bs-cta-right {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.bs-cta-btn-primary {
    padding: 8px 20px;
    border-radius: 8px;
    border: none;
    background: linear-gradient(135deg, #0F47AF, #0a38a0);
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s ease;
    box-shadow: 0 3px 10px rgba(15,71,175,0.25);
}

.bs-cta-btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 5px 16px rgba(15,71,175,0.35);
    background: linear-gradient(135deg, #0a38a0, #082a80);
}

.bs-cta-btn-ghost {
    padding: 8px 16px;
    border-radius: 8px;
    border: 1.5px solid rgba(15,71,175,0.2);
    background: transparent;
    color: #0F47AF;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
    transition: all 0.2s ease;
}

.bs-cta-btn-ghost:hover {
    background: rgba(15,71,175,0.06);
    border-color: rgba(15,71,175,0.35);
}

/* 移动端：垂直堆叠 */
@media (max-width: 600px) {
    .bs-cta-inner {
        flex-direction: column;
        align-items: flex-start;
        padding: 16px 20px;
        gap: 14px;
    }

    .bs-cta-right {
        width: 100%;
    }

    .bs-cta-btn-primary,
    .bs-cta-btn-ghost {
        flex: 1;
        text-align: center;
    }
}

.cta-btns {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

.btn-lg {
    padding: 10px 24px;
    font-size: 13px;
}

.btn-outline-white {
    background: transparent;
    border: 1.5px solid rgba(255,255,255,0.35);
    color: #fff;
    border-radius: var(--radius-full);
    padding: 10px 24px;
    font-weight: 600;
    font-size: 13px;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
}

.btn-outline-white:hover {
    background: rgba(255,255,255,0.12);
    border-color: rgba(255,255,255,0.6);
}

.cta-trust {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    font-size: 11px;
    color: rgba(255,255,255,0.55);
}

/* =====================================================
  响应式
  ===================================================== */
@media (max-width: 1200px) {
    .value-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 1024px) {
    /* 商业模式卡片 — 已有CSS内置响应式，此处补充 */
    .biz-cards {
        grid-template-columns: 1fr 1fr;
    }
    .biz-card--main {
        grid-column: 1 / -1;
        order: -1;
    }

    .fd-roles { grid-template-columns: repeat(3, 1fr); }
    .fd-step-content { grid-template-columns: 1fr auto 1fr auto 1fr; }

    .contracts-dual-grid { grid-template-columns: 1fr; }
    .contracts-connector { flex-direction: row; height: 60px; padding: 0 32px; }
    .connector-line { width: 100%; height: 2px; }

    .compare-visual { grid-template-columns: 1fr; }
    .cv-divider { padding: 12px 0; }

    .scenarios-cards { grid-template-columns: repeat(2, 1fr); }
    .calc-wrapper { flex-direction: column; }
    .calc-left, .calc-right { flex: none; }
    .value-compare { grid-template-columns: 1fr; }
    .tech-compare { grid-template-columns: 1fr; }
    .risk-grid { grid-template-columns: 1fr; }
    .ops-grid { grid-template-columns: 1fr; }
    
    .page-hero-title { font-size: 42px; }
    .page-hero .page-hero-content { padding: 60px 30px; }
}

@media (max-width: 768px) {
    .model-section { padding: 64px 0; }
    .section-header h2 { font-size: 30px; }
    .hero-metrics { flex-wrap: wrap; padding: 20px; }
    .hero-metric-divider { display: none; }
    .hero-metric { min-width: 45%; padding: 10px; }
    .hm-num { font-size: 34px; }

    .fd-step-content { grid-template-columns: 1fr; }
    .fd-step-arrow { transform: rotate(90deg); }
    .fd-box-empty { display: none; }

    .scenarios-cards { grid-template-columns: 1fr 1fr; }
    .sc-card { height: 200px; }

    .compare-tabs { gap: 6px; }
    .compare-tab { padding: 8px 14px; font-size: 12px; }

    .compare-panel { padding: 20px; }
    .result-stats { grid-template-columns: repeat(3, 1fr); }
    .rb-compare { flex-direction: row; }

    .model-cta { padding: 40px 24px; }
    .cta-content h2 { font-size: 28px; }
    .cta-btns { flex-direction: column; align-items: center; }
    .cta-trust { flex-direction: column; gap: 8px; }
    
    .page-hero { min-height: 400px; }
    .page-hero-title { font-size: 32px; }
    .page-hero-desc { font-size: 16px; }
    .page-hero-stats {
        padding: 20px 0;
        max-width: 100%;
    }
    .ph-stat .hm-num { font-size: 32px; }
    .value-grid { grid-template-columns: 1fr; }

    /* 商业模式卡片小屏 */
    .biz-cards {
        grid-template-columns: 1fr;
    }
    .biz-card--main {
        grid-column: auto;
        order: unset;
    }
}