/* ========== CSS Variables ========== */
:root {
    --c-primary: #1E40AF;
    --c-primary-light: #3B82F6;
    --c-accent: #D97706;
    --c-accent-light: #FEF3C7;
    --c-text-dark: #0F172A;
    --c-text-medium: #475569;
    --c-text-light: #64748B;
    --c-text-muted: #94A3B8;
    --c-bg-light: #F8FAFC;
    --c-bg-white: #FFFFFF;
    --c-bg-dark: #1E3A8A;
    --c-bg-footer: #0F172A;
    --c-border: #E2E8F0;
    --c-blue-bg: #EFF6FF;
    --c-green: #16A34A;
    --c-green-bg: #F0FDF4;

    --font: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;

    --container: 1200px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 50px;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 12px rgba(6,15,43,0.08);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
    --transition: all 0.3s ease;
}

/* ========== Reset & Base ========== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--font);
    color: var(--c-text-medium);
    background: var(--c-bg-white);
    line-height: 1.6;
    overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img, svg { display: block; max-width: 100%; }

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

/* ========== Buttons ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: var(--radius-full);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    white-space: nowrap;
}
.btn-sm { padding: 10px 24px; font-size: 14px; }
.btn-block { width: 100%; padding: 16px; }
.btn-primary {
    background: var(--c-primary);
    color: #fff;
}
.btn-primary:hover {
    background: #1A3590;
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(30,64,175,0.3);
}
.btn-outline {
    background: #fff;
    color: var(--c-primary);
    border: 1.5px solid var(--c-primary);
}
.btn-outline:hover {
    background: var(--c-blue-bg);
}

/* ========== Header ========== */
#header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(8px);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
#header.scrolled {
    box-shadow: 0 2px 16px rgba(0,0,0,0.06);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}
.logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
    min-width: fit-content;
}
.logo-icon { width: 28px; height: 28px; flex-shrink: 0; }
.logo-text {
    font-size: 22px;
    font-weight: 700;
    color: var(--c-text-dark);
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    writing-mode: horizontal-tb;
    text-orientation: mixed;
    line-height: 1;
}
.nav {
    display: flex;
    align-items: center;
    flex-wrap: nowrap;
    gap: 28px;
}
.nav-link {
    font-size: 14px;
    line-height: 1.4;
    color: var(--c-text-light);
    transition: var(--transition);
    position: relative;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    writing-mode: horizontal-tb;
    text-orientation: mixed;
}
.nav-link:hover, .nav-link.active {
    color: var(--c-primary);
    font-weight: 600;
}
.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -6px; left: 50%;
    transform: translateX(-50%);
    width: 20px; height: 2px;
    background: var(--c-primary);
    border-radius: 2px;
}
.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}
.header-phone {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--c-text-medium);
}
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.menu-toggle span {
    width: 22px; height: 2px;
    background: var(--c-text-dark);
    border-radius: 2px;
    transition: var(--transition);
}
.menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* ========== Hero ========== */
.hero {
    padding-top: 64px;
    background: var(--c-bg-light);
}
.hero-inner {
    display: flex;
    align-items: center;
    gap: 60px;
    padding: 60px 24px 80px;
}
.hero-content { flex: 0 0 580px; }
.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: var(--c-blue-bg);
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
    color: var(--c-primary);
    margin-bottom: 28px;
}
.hero-title {
    font-size: 48px;
    font-weight: 700;
    color: var(--c-text-dark);
    line-height: 1.25;
    margin-bottom: 20px;
}
.hero-subtitle {
    font-size: 17px;
    line-height: 1.65;
    color: var(--c-text-light);
    margin-bottom: 32px;
}
.hero-cta {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
}
.hero-stats {
    display: flex;
    align-items: center;
    gap: 32px;
}
.stat { display: flex; flex-direction: column; gap: 4px; }
.stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--c-primary);
}
.stat-label {
    font-size: 14px;
    color: var(--c-text-light);
}
.stat-divider {
    width: 1px; height: 40px;
    background: var(--c-border);
}

/* Hero Visual */
.hero-visual {
    flex: 1;
    min-height: 460px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, #1E40AF 0%, #3B82F6 100%);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}
.hero-icon-wrap {
    z-index: 2;
    opacity: 0.15;
    transform: scale(2.5);
}
.float-card {
    position: absolute;
    background: rgba(255,255,255,0.95);
    border-radius: var(--radius-md);
    padding: 16px 24px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
    display: flex;
    flex-direction: column;
    gap: 4px;
    z-index: 3;
    animation: floatAnim 4s ease-in-out infinite;
}
.float-card .fc-label {
    font-size: 12px;
    color: var(--c-text-light);
    font-weight: 500;
}
.float-card .fc-score {
    font-size: 24px;
    font-weight: 700;
    color: var(--c-primary);
}
.card-1 { top: 12%; left: 8%; }
.card-2 { top: 18%; right: 10%; animation-delay: 0.5s; }
.card-3 { bottom: 18%; left: 12%; animation-delay: 1s; }
.card-4 { bottom: 14%; right: 8%; animation-delay: 1.5s; }
@keyframes floatAnim {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}
.deco {
    position: absolute;
    border-radius: 50%;
    background: rgba(255,255,255,0.08);
}
.deco-1 { width: 200px; height: 200px; top: -60px; right: -40px; }
.deco-2 { width: 120px; height: 120px; bottom: -30px; left: -20px; }

/* ========== Section Header ========== */
.section-header {
    text-align: center;
    margin-bottom: 48px;
}
.section-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--c-text-dark);
    margin-bottom: 12px;
}
.section-subtitle {
    font-size: 16px;
    color: var(--c-text-light);
}
.title-light { color: #fff; }
.subtitle-light { color: #B4C6E0; }

/* ========== Courses ========== */
.courses {
    padding: 80px 0;
    background: #fff;
}
.courses-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.course-card {
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}
.course-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}
.card-topbar { height: 6px; }
.bar-blue { background: var(--c-primary-light); }
.bar-amber { background: var(--c-accent); }
.card-body { padding: 28px; display: flex; flex-direction: column; flex: 1; }
.course-name {
    font-size: 20px;
    font-weight: 700;
    color: var(--c-text-dark);
    margin-bottom: 14px;
}
.course-price {
    font-size: 26px;
    font-weight: 700;
    color: var(--c-accent);
    margin-bottom: 6px;
}
.price-unit { font-size: 16px; font-weight: 400; }
.course-duration {
    font-size: 14px;
    color: var(--c-text-light);
    margin-bottom: 16px;
}
.course-features {
    margin-bottom: 20px;
    flex: 1;
}
.course-features li {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--c-text-medium);
    padding: 4px 0;
}
.check-icon {
    width: 18px; height: 18px;
    flex-shrink: 0;
}
.course-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: auto;
}
.course-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--c-primary);
    transition: var(--transition);
    white-space: nowrap;
}
.course-link:hover { opacity: 0.8; }
.btn-buy {
    padding: 8px 20px;
    font-size: 13px;
    border-radius: var(--radius-full);
}

/* ========== Modal ========== */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 20px;
    overflow-y: auto;
}
.modal-overlay.open {
    display: flex;
}
.modal-box {
    background: #fff;
    border-radius: var(--radius-lg);
    max-width: 640px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    padding: 40px;
}
.modal-order {
    max-width: 560px;
}
.modal-close {
    position: absolute;
    top: 16px; right: 16px;
    width: 36px; height: 36px;
    border: none;
    background: #F1F5F9;
    border-radius: 50%;
    font-size: 24px;
    line-height: 1;
    color: var(--c-text-medium);
    cursor: pointer;
    transition: var(--transition);
}
.modal-close:hover { background: #E2E8F0; }

/* Course Detail Modal */
.course-detail-hero {
    background: linear-gradient(135deg, var(--c-primary), var(--c-primary-light));
    color: #fff;
    border-radius: var(--radius-md);
    padding: 32px;
    margin-bottom: 24px;
}
.cdh-name { font-size: 24px; font-weight: 700; margin-bottom: 8px; }
.cdh-price { font-size: 32px; font-weight: 700; color: #FCD34D; }
.cdh-price-unit { font-size: 18px; }
.cdh-tags { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.cdh-tag {
    background: rgba(255,255,255,0.2);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 13px;
}
.detail-section { margin-bottom: 24px; }
.detail-section h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--c-text-dark);
    margin-bottom: 12px;
}
.detail-section ul li {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 14px;
    color: var(--c-text-medium);
    padding: 6px 0;
}
.detail-schedule {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}
.schedule-item {
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    padding: 16px;
    text-align: center;
}
.schedule-item .si-type { font-size: 15px; font-weight: 600; color: var(--c-text-dark); }
.schedule-item .si-time { font-size: 13px; color: var(--c-text-light); margin-top: 4px; }
.detail-buy-btn {
    width: 100%;
    padding: 16px;
    margin-top: 16px;
}

/* Order Modal */
.order-header { margin-bottom: 24px; }
.order-title { font-size: 22px; font-weight: 700; color: var(--c-text-dark); margin-bottom: 4px; }
.order-subtitle { font-size: 14px; color: var(--c-text-light); }
.order-section { margin-bottom: 24px; }
.order-section-title { font-size: 15px; font-weight: 600; color: var(--c-text-dark); margin-bottom: 12px; }
.order-course-info {
    background: var(--c-bg-light);
    border-radius: var(--radius-md);
    padding: 16px;
}
.oc-row { display: flex; justify-content: space-between; align-items: center; padding: 4px 0; }
.oc-label { font-size: 14px; color: var(--c-text-light); }
.oc-value { font-size: 15px; font-weight: 600; color: var(--c-text-dark); }
.oc-price { font-size: 20px; font-weight: 700; color: var(--c-accent); }
.class-type-options { display: flex; flex-direction: column; gap: 12px; }
.class-type-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    border: 1.5px solid var(--c-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
}
.class-type-option:hover { border-color: var(--c-primary-light); }
.class-type-option:has(input:checked) { border-color: var(--c-primary); background: var(--c-blue-bg); }
.class-type-option input { display: none; }
.ct-radio {
    width: 18px; height: 18px;
    border: 2px solid var(--c-border);
    border-radius: 50%;
    flex-shrink: 0;
    transition: var(--transition);
}
.class-type-option:has(input:checked) .ct-radio {
    border-color: var(--c-primary);
    background: var(--c-primary);
    box-shadow: inset 0 0 0 3px #fff;
}
.ct-name { font-size: 15px; font-weight: 600; color: var(--c-text-dark); }
.ct-desc { font-size: 13px; color: var(--c-text-light); margin-left: auto; }
.order-form { display: flex; flex-direction: column; gap: 16px; }
.form-row { display: flex; flex-direction: column; gap: 6px; }
.form-label { font-size: 14px; font-weight: 500; color: var(--c-text-medium); }
.required { color: #EF4444; }
.form-input {
    padding: 12px 16px;
    border: 1.5px solid var(--c-border);
    border-radius: var(--radius-md);
    font-size: 15px;
    font-family: var(--font);
    transition: var(--transition);
    outline: none;
}
.form-input:focus { border-color: var(--c-primary); }
.order-summary {
    background: var(--c-bg-light);
    border-radius: var(--radius-md);
    padding: 20px;
    margin-bottom: 16px;
}
.os-row { display: flex; justify-content: space-between; align-items: center; padding: 4px 0; font-size: 14px; color: var(--c-text-medium); }
.os-divider { height: 1px; background: var(--c-border); margin: 8px 0; }
.os-total { font-weight: 600; color: var(--c-text-dark); }
.os-amount { font-size: 22px; font-weight: 700; color: var(--c-accent); }
.order-notice { font-size: 12px; color: var(--c-text-muted); text-align: center; margin-top: 12px; line-height: 1.6; }

/* Payment step */
.order-step.hidden { display: none; }
.pay-qr-area { text-align: center; padding: 32px 0; }
.pay-qr-box {
    width: 200px; height: 200px;
    border: 2px dashed var(--c-border);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}
.pay-amount { font-size: 24px; font-weight: 700; color: var(--c-text-dark); margin-bottom: 8px; }
.pay-tip { font-size: 14px; color: var(--c-text-light); }
.pay-order-info {
    background: var(--c-bg-light);
    border-radius: var(--radius-md);
    padding: 16px;
    margin-bottom: 16px;
}
.poi-row { display: flex; justify-content: space-between; padding: 4px 0; font-size: 14px; color: var(--c-text-medium); }

/* ========== Learning Center ========== */
.learning {
    padding: 80px 0;
    background: var(--c-bg-light);
}
.learning-tabs {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}
.ltab {
    padding: 10px 24px;
    border: 1.5px solid var(--c-border);
    border-radius: var(--radius-full);
    background: #fff;
    font-size: 14px;
    font-weight: 500;
    color: var(--c-text-medium);
    cursor: pointer;
    transition: var(--transition);
}
.ltab:hover { border-color: var(--c-primary-light); }
.ltab.active {
    background: var(--c-primary);
    border-color: var(--c-primary);
    color: #fff;
}
.lpanel { display: none; }
.lpanel.active { display: block; }

/* Video cards */
.video-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.video-card {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.video-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.video-thumb {
    width: 100%;
    aspect-ratio: 16/9;
    background: linear-gradient(135deg, #1E3A8A, #3B82F6);
    position: relative;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}
.play-btn {
    width: 56px; height: 56px;
    background: rgba(255,255,255,0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}
.video-thumb:hover .play-btn { transform: scale(1.1); background: #fff; }
.video-duration {
    position: absolute;
    bottom: 8px; right: 8px;
    background: rgba(0,0,0,0.6);
    color: #fff;
    font-size: 12px;
    padding: 2px 8px;
    border-radius: 4px;
}
.video-info { padding: 16px; }
.video-title { font-size: 15px; font-weight: 600; color: var(--c-text-dark); margin-bottom: 6px; line-height: 1.4; }
.video-meta { font-size: 13px; color: var(--c-text-light); }

/* Exam preview */
.exam-preview {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    box-shadow: var(--shadow-sm);
}
.exam-sidebar {
    flex: 0 0 200px;
    background: #1E293B;
    padding: 16px;
}
.exam-section {
    padding: 10px 12px;
    font-size: 14px;
    color: #94A3B8;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}
.exam-section.active { background: rgba(59,130,246,0.2); color: #fff; }
.exam-timer {
    margin-top: 16px;
    padding: 12px;
    background: rgba(239,68,68,0.15);
    border-radius: var(--radius-sm);
    text-align: center;
}
.timer-label { display: block; font-size: 12px; color: #FCA5A5; }
.timer-value { font-size: 20px; font-weight: 700; color: #FEE2E2; }
.exam-main { flex: 1; padding: 24px; }
.eq-title { font-size: 16px; font-weight: 600; color: var(--c-text-dark); margin-bottom: 12px; }
.eq-passage { font-size: 14px; line-height: 1.8; color: var(--c-text-medium); margin-bottom: 16px; padding: 16px; background: var(--c-bg-light); border-radius: var(--radius-sm); }
.eq-choices { display: flex; flex-direction: column; gap: 8px; }
.eq-choice {
    padding: 12px 16px;
    border: 1.5px solid var(--c-border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--c-text-medium);
    cursor: pointer;
    transition: var(--transition);
}
.eq-choice:hover { border-color: var(--c-primary-light); }
.eq-choice.correct { border-color: var(--c-green); background: var(--c-green-bg); color: var(--c-green); }
.exam-footer { display: flex; align-items: center; justify-content: space-between; margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--c-border); }
.exam-progress { font-size: 14px; color: var(--c-text-light); }

/* Progress dashboard */
.progress-dashboard { max-width: 700px; margin: 0 auto; }
.pd-card { background: #fff; border-radius: var(--radius-lg); padding: 32px; box-shadow: var(--shadow-sm); }
.pd-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.pd-title { font-size: 18px; font-weight: 700; color: var(--c-text-dark); }
.pd-badge { padding: 4px 12px; background: var(--c-blue-bg); color: var(--c-primary); border-radius: var(--radius-full); font-size: 12px; font-weight: 600; }
.pd-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 24px; }
.pd-stat { text-align: center; }
.pd-value { display: block; font-size: 24px; font-weight: 700; color: var(--c-primary); margin-bottom: 4px; }
.pd-label { font-size: 12px; color: var(--c-text-light); }
.pd-bar-wrap { height: 8px; background: var(--c-border); border-radius: 4px; margin-bottom: 24px; overflow: hidden; }
.pd-bar { height: 100%; background: var(--c-primary); border-radius: 4px; transition: width 1s ease; }
.pd-subjects { display: flex; flex-direction: column; gap: 12px; }
.pd-subj { display: flex; align-items: center; gap: 12px; }
.ps-name { font-size: 14px; font-weight: 500; color: var(--c-text-medium); width: 50px; }
.ps-bar-wrap { flex: 1; height: 6px; background: var(--c-border); border-radius: 3px; overflow: hidden; }
.ps-bar { height: 100%; background: var(--c-primary-light); border-radius: 3px; }
.ps-score { font-size: 14px; font-weight: 600; color: var(--c-primary); width: 32px; text-align: right; }

/* Q&A */
.qa-list { display: flex; flex-direction: column; gap: 16px; max-width: 800px; margin: 0 auto; }
.qa-item { display: flex; gap: 16px; background: #fff; border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow-sm); }
.qa-avatar {
    width: 40px; height: 40px;
    border-radius: 50%;
    background: var(--c-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 600;
    flex-shrink: 0;
}
.qa-content { flex: 1; }
.qa-header { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.qa-name { font-size: 14px; font-weight: 600; color: var(--c-text-dark); }
.qa-tag { font-size: 12px; color: var(--c-primary); background: var(--c-blue-bg); padding: 2px 8px; border-radius: var(--radius-full); }
.qa-time { font-size: 12px; color: var(--c-text-muted); margin-left: auto; }
.qa-question { font-size: 14px; color: var(--c-text-medium); margin-bottom: 12px; line-height: 1.6; }
.qa-answer { background: var(--c-bg-light); border-radius: var(--radius-md); padding: 16px; }
.qa-answer-header { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.qa-avatar-sm { width: 28px; height: 28px; border-radius: 50%; background: var(--c-accent); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 600; }
.qa-teacher { font-size: 13px; font-weight: 600; color: var(--c-text-dark); }
.qa-answer p { font-size: 14px; color: var(--c-text-medium); line-height: 1.6; }

/* Learning CTA */
.learning-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-top: 32px;
    padding: 24px;
    background: linear-gradient(135deg, var(--c-blue-bg), #DBEAFE);
    border-radius: var(--radius-lg);
}
.lc-text { font-size: 15px; color: var(--c-text-medium); }

/* ========== Teachers ========== */
.teachers {
    padding: 80px 0;
    background: #fff;
}
.teachers-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.teacher-card {
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition);
}
.teacher-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}
.teacher-avatar {
    width: 80px; height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}
.ta-text { font-size: 32px; font-weight: 700; color: #fff; }
.teacher-name { font-size: 20px; font-weight: 700; color: var(--c-text-dark); margin-bottom: 4px; }
.teacher-title { font-size: 13px; color: var(--c-text-light); margin-bottom: 12px; }
.teacher-tags { display: flex; justify-content: center; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.tt-tag { font-size: 12px; color: var(--c-primary); background: var(--c-blue-bg); padding: 4px 10px; border-radius: var(--radius-full); }
.teacher-desc { font-size: 13px; line-height: 1.6; color: var(--c-text-medium); margin-bottom: 16px; }
.teacher-rating { display: flex; align-items: center; justify-content: center; gap: 6px; }
.tr-score { font-size: 16px; font-weight: 700; color: var(--c-accent); }
.tr-stars { font-size: 14px; color: var(--c-accent); }
.tr-count { font-size: 12px; color: var(--c-text-muted); }

/* ========== Student Cases ========== */
.cases {
    padding: 80px 0;
    background: var(--c-bg-light);
}
.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.case-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.case-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.case-header { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.case-avatar { width: 44px; height: 44px; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 18px; font-weight: 600; flex-shrink: 0; }
.case-info { flex: 1; }
.case-name { font-size: 16px; font-weight: 700; color: var(--c-text-dark); }
.case-target { font-size: 12px; color: var(--c-text-light); }
.case-score-badge { display: flex; align-items: center; gap: 4px; }
.cs-before { font-size: 16px; font-weight: 600; color: var(--c-text-muted); text-decoration: line-through; }
.cs-after { font-size: 20px; font-weight: 700; color: var(--c-primary); }
.case-comment { font-size: 14px; line-height: 1.7; color: var(--c-text-medium); margin-bottom: 16px; }
.case-meta { display: flex; gap: 12px; }
.cm-course { font-size: 12px; color: var(--c-primary); background: var(--c-blue-bg); padding: 4px 10px; border-radius: var(--radius-full); }
.cm-time { font-size: 12px; color: var(--c-text-muted); }

/* ========== Learning Process ========== */
.process {
    padding: 80px 0;
    background: #fff;
}
.process-steps {
    display: flex;
    align-items: stretch;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 16px;
}
.process-step {
    flex: 1;
    min-width: 200px;
    background: var(--c-bg-light);
    border-radius: var(--radius-lg);
    padding: 28px 20px;
    text-align: center;
    position: relative;
    transition: var(--transition);
}
.process-step:hover { background: var(--c-blue-bg); transform: translateY(-2px); }
.ps-num {
    width: 40px; height: 40px;
    background: var(--c-primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    margin: 0 auto 16px;
}
.ps-title { font-size: 16px; font-weight: 700; color: var(--c-text-dark); margin-bottom: 8px; }
.ps-desc { font-size: 13px; line-height: 1.6; color: var(--c-text-light); }
.process-arrow {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

/* ========== About ========== */
.about {
    padding: 80px 0;
    background: var(--c-bg-light);
}
.about-content {
    display: flex;
    gap: 60px;
    align-items: center;
}
.about-text {
    flex: 0 0 520px;
}
.about-text p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--c-text-medium);
    margin-bottom: 20px;
}
.about-stats {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}
.stat-box {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 28px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(6,15,43,0.06);
    transition: var(--transition);
}
.stat-box:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}
.sb-value {
    display: block;
    font-size: 32px;
    font-weight: 700;
    color: var(--c-primary);
    margin-bottom: 8px;
}
.sb-label {
    font-size: 14px;
    color: var(--c-text-light);
}

/* ========== Service ========== */
.service {
    padding: 80px 0;
    background: var(--c-bg-dark);
}
.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.service-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}
.service-card:hover {
    transform: translateY(-4px);
}
.service-icon {
    width: 48px; height: 48px;
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}
.icon-blue { background: var(--c-blue-bg); }
.icon-amber { background: var(--c-accent-light); }
.service-card-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--c-text-dark);
    margin-bottom: 12px;
}
.service-card-desc {
    font-size: 14px;
    line-height: 1.7;
    color: var(--c-text-medium);
}

/* ========== FAQ ========== */
.faq {
    padding: 80px 0;
    background: #fff;
}
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}
.faq-item {
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    overflow: hidden;
    transition: var(--transition);
}
.faq-item.open { border-color: var(--c-primary-light); box-shadow: var(--shadow-sm); }
.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
    color: var(--c-text-dark);
    font-family: var(--font);
}
.faq-arrow { transition: transform 0.3s ease; flex-shrink: 0; }
.faq-item.open .faq-arrow { transform: rotate(180deg); }
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 24px;
}
.faq-item.open .faq-answer {
    max-height: 300px;
    padding: 0 24px 20px;
}
.faq-answer p { font-size: 14px; line-height: 1.7; color: var(--c-text-medium); }

/* ========== Contact ========== */
.contact {
    padding: 80px 0;
    background: var(--c-bg-light);
}
.contact-content {
    display: flex;
    gap: 40px;
    align-items: center;
}
.contact-info { flex: 1; }
.contact-company {
    font-size: 22px;
    font-weight: 700;
    color: var(--c-text-dark);
    margin-bottom: 20px;
}
.contact-item {
    font-size: 15px;
    line-height: 1.6;
    color: var(--c-text-medium);
    margin-bottom: 16px;
}
.contact-link {
    color: var(--c-primary);
    transition: var(--transition);
}
.contact-link:hover { text-decoration: underline; }
.contact-map {
    flex: 0 0 400px;
    height: 280px;
    background: var(--c-primary);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    transition: var(--transition);
}
.contact-map:hover {
    background: #1A3590;
}
.map-text {
    font-size: 16px;
    font-weight: 500;
    color: #fff;
}
.map-subtext {
    font-size: 13px;
    color: #B4C6E0;
}

/* ========== Footer ========== */
.footer {
    padding: 60px 0 40px;
    background: var(--c-bg-footer);
}
.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}
.footer-left {}
.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}
.footer-logo-text {
    font-size: 22px;
    font-weight: 700;
    color: #fff;
}
.footer-tagline {
    font-size: 14px;
    color: var(--c-text-muted);
    margin-bottom: 4px;
}
.footer-company {
    font-size: 14px;
    color: var(--c-text-muted);
}
.footer-links {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}
.footer-link {
    font-size: 14px;
    color: var(--c-text-muted);
    transition: var(--transition);
}
.footer-link:hover { color: #fff; }
.footer-divider {
    width: 100%;
    height: 1px;
    background: #1E293B;
    margin-bottom: 24px;
}
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.footer-copyright {
    font-size: 13px;
    color: var(--c-text-muted);
}
.footer-icp {
    font-size: 13px;
    color: var(--c-text-muted);
    transition: var(--transition);
}
.footer-icp:hover { color: #fff; }

/* ========== Video Modal ========== */
.modal-video { max-width: 720px; padding: 0; overflow: hidden; }
.modal-video .modal-close { top: 12px; right: 12px; z-index: 10; background: rgba(255,255,255,0.8); }
.video-player { background: #1E293B; }
.vp-placeholder { padding: 60px 40px; text-align: center; display: flex; flex-direction: column; align-items: center; gap: 16px; }
.vp-text { color: #94A3B8; font-size: 16px; }
.video-modal-title { padding: 16px 24px; font-size: 15px; font-weight: 600; color: var(--c-text-dark); }

/* ========== Reveal Animation ========== */
/* 默认可见：即使 JS 未执行，内容也不空白（no-JS 兜底） */
.reveal {
    opacity: 1;
    transform: translateY(0);
}
/* 仅当 JS 就绪后才启用入场动画，避免动画类未触发导致永久透明空白 */
body.js .reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
body.js .reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ========== Responsive: Tablet ========== */
@media (max-width: 1024px) {
    .hero-inner {
        flex-direction: column;
        padding: 40px 24px 60px;
    }
    .hero-content { flex: none; width: 100%; }
    .hero-visual { width: 100%; min-height: 360px; }
    .hero-title { font-size: 36px; }
    .courses-grid { grid-template-columns: repeat(2, 1fr); }
    .video-grid { grid-template-columns: repeat(2, 1fr); }
    .teachers-grid { grid-template-columns: repeat(2, 1fr); }
    .cases-grid { grid-template-columns: 1fr; }
    .about-content { flex-direction: column; }
    .about-text { flex: none; width: 100%; }
    .service-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
    .contact-content { flex-direction: column; }
    .contact-map { flex: none; width: 100%; }
    .exam-preview { flex-direction: column; }
    .exam-sidebar { flex: none; }
    .process-steps { flex-wrap: wrap; justify-content: center; }
    .process-arrow { display: none; }
    .process-step { min-width: 180px; }
}

/* ========== Responsive: Mobile ========== */
@media (max-width: 768px) {
    .container { padding: 0 20px; }
    .nav {
        position: fixed;
        top: 64px; left: 0; right: 0;
        background: #fff;
        flex-direction: column;
        gap: 0;
        padding: 0;
        box-shadow: var(--shadow-md);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: var(--transition);
        max-height: 80vh;
        overflow-y: auto;
    }
    .nav.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }
    .nav-link {
        padding: 14px 24px;
        border-bottom: 1px solid var(--c-border);
    }
    .nav-link.active::after { display: none; }
    .menu-toggle { display: flex; }
    .header-phone { display: none; }
    .btn-sm { display: none; }

    .hero-title { font-size: 28px; line-height: 1.3; }
    .hero-subtitle { font-size: 15px; }
    .hero-cta { flex-direction: column; gap: 12px; }
    .btn { width: 100%; }
    .hero-stats { gap: 20px; }
    .stat-value { font-size: 22px; }

    .courses-grid { grid-template-columns: 1fr; }
    .course-actions { flex-direction: column; }
    .btn-buy { width: 100%; }

    .video-grid { grid-template-columns: 1fr; }
    .teachers-grid { grid-template-columns: 1fr; }
    .cases-grid { grid-template-columns: 1fr; }
    .about-stats { grid-template-columns: 1fr 1fr; gap: 16px; }
    .stat-box { padding: 20px; }
    .sb-value { font-size: 26px; }

    .section-title { font-size: 26px; }
    .section-subtitle { font-size: 14px; }

    .footer-top { flex-direction: column; gap: 24px; text-align: center; }
    .footer-links { flex-wrap: wrap; justify-content: center; gap: 16px; }
    .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }

    .float-card { padding: 10px 16px; }
    .float-card .fc-score { font-size: 18px; }
    .card-1 { top: 8%; left: 5%; }
    .card-2 { top: 14%; right: 5%; }
    .card-3 { bottom: 14%; left: 8%; }
    .card-4 { bottom: 10%; right: 5%; }

    .modal-box { padding: 24px; }
    .class-type-option { flex-direction: column; align-items: flex-start; }
    .ct-desc { margin-left: 0; }
    .detail-schedule { grid-template-columns: 1fr; }
    .pd-stats { grid-template-columns: repeat(2, 1fr); }
    .learning-cta { flex-direction: column; text-align: center; }
}

/* ========== 会员状态条 ========== */
.member-bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; background: var(--c-blue-bg); border: 1px solid #DBEAFE; border-radius: var(--radius-md); padding: 14px 22px; margin-bottom: 28px; flex-wrap: wrap; }
.member-status { display: flex; align-items: center; gap: 10px; }
.ms-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--c-text-muted); flex-shrink: 0; }
.ms-dot.on { background: var(--c-green); box-shadow: 0 0 0 4px var(--c-green-bg); }
#memberText { font-size: 14px; color: var(--c-text-medium); }
.courses-note { text-align: center; margin-top: 28px; color: var(--c-text-light); font-size: 14px; }

/* ========== 视频课程徽标 / 锁 ========== */
.video-badge { position: absolute; top: 10px; left: 10px; font-size: 12px; font-weight: 600; padding: 3px 10px; border-radius: var(--radius-full); }
.video-badge.free { background: var(--c-green-bg); color: var(--c-green); }
.video-badge.member { background: var(--c-accent-light); color: var(--c-accent); }
.video-card.locked .video-thumb { cursor: pointer; }
.lock-mask { position: absolute; inset: 0; background: rgba(15,23,42,0.55); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; color: #fff; font-size: 13px; }
.video-card.locked .play-btn { opacity: 0.3; }

/* ========== 可交互模考 ========== */
.exam-real { max-width: 760px; margin: 0 auto; }
.exam-head { background: #fff; border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow-sm); margin-bottom: 20px; }
.exam-title { font-size: 18px; font-weight: 700; color: var(--c-text-dark); margin-bottom: 8px; }
.exam-intro { font-size: 14px; color: var(--c-text-light); margin-bottom: 16px; }
.exam-passage-box { background: var(--c-bg-light); border-radius: var(--radius-md); padding: 16px; }
.ep-label { display: inline-block; font-size: 12px; font-weight: 600; color: var(--c-primary); margin-bottom: 8px; }
.exam-passage-box p { font-size: 14px; line-height: 1.9; color: var(--c-text-medium); }
.exam-q { background: #fff; border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow-sm); }
.eq-text { font-size: 16px; font-weight: 600; color: var(--c-text-dark); margin-bottom: 18px; }
.eq-opts { display: flex; flex-direction: column; gap: 12px; }
.eq-opt { text-align: left; padding: 14px 18px; border: 1.5px solid var(--c-border); border-radius: var(--radius-md); background: #fff; font-size: 15px; color: var(--c-text-medium); cursor: pointer; transition: var(--transition); font-family: var(--font); }
.eq-opt:hover:not(:disabled) { border-color: var(--c-primary-light); background: var(--c-blue-bg); }
.eq-opt:disabled { cursor: default; }
.eq-opt.correct { border-color: var(--c-green); background: var(--c-green-bg); color: var(--c-green); font-weight: 600; }
.eq-opt.wrong { border-color: #DC2626; background: #FEF2F2; color: #DC2626; }
.eq-fb { margin-top: 16px; padding: 14px 16px; border-radius: var(--radius-md); font-size: 14px; line-height: 1.8; }
.eq-fb.correct-fb { background: var(--c-green-bg); color: #15803D; }
.eq-fb.wrong-fb { background: #FEF2F2; color: #B91C1C; }
.exam-foot { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: 20px; }
.exam-progress { font-size: 14px; color: var(--c-text-light); }
.exam-result { max-width: 760px; margin: 0 auto; background: #fff; border-radius: var(--radius-lg); padding: 40px 24px; text-align: center; box-shadow: var(--shadow-sm); }
.er-score { margin-bottom: 12px; }
.er-num { font-size: 56px; font-weight: 800; color: var(--c-primary); }
.er-total { font-size: 22px; color: var(--c-text-light); }
.er-text { font-size: 15px; color: var(--c-text-medium); margin-bottom: 20px; }

/* ========== 学习进度提示 ========== */
.pd-tip { margin-top: 16px; font-size: 13px; color: var(--c-text-light); text-align: center; }

/* ========== 在线答疑表单 ========== */
.qa-form { max-width: 800px; margin: 24px auto 0; background: #fff; border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow-sm); }
.qa-form-title { font-size: 16px; font-weight: 700; color: var(--c-text-dark); margin-bottom: 16px; }
.qa-form .form-row { margin-bottom: 12px; }
.qa-form .form-input { width: 100%; padding: 12px 14px; border: 1.5px solid var(--c-border); border-radius: var(--radius-md); font-size: 14px; font-family: var(--font); }
.qa-form .form-input:focus { outline: none; border-color: var(--c-primary-light); }
.qa-pending { margin-top: 10px; font-size: 13px; color: var(--c-accent); background: var(--c-accent-light); padding: 8px 12px; border-radius: var(--radius-sm); display: inline-block; }

/* ========== 学习资料 ========== */
.resources { padding: 80px 0; background: var(--c-bg-light); }
.resources-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.resource-card { display: flex; align-items: center; gap: 16px; background: #fff; border-radius: var(--radius-lg); padding: 22px; box-shadow: var(--shadow-sm); transition: var(--transition); }
.resource-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.resource-icon { width: 52px; height: 52px; border-radius: var(--radius-md); background: var(--c-blue-bg); display: flex; align-items: center; justify-content: center; font-size: 26px; flex-shrink: 0; }
.resource-info { flex: 1; }
.resource-title { font-size: 16px; font-weight: 700; color: var(--c-text-dark); }
.resource-desc { font-size: 13px; color: var(--c-text-light); margin: 4px 0 6px; }
.resource-type { font-size: 12px; color: var(--c-primary); background: var(--c-blue-bg); padding: 2px 10px; border-radius: var(--radius-full); }

/* ========== 备考资讯 ========== */
.blog { padding: 80px 0; background: #fff; }
.blog-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.blog-card { background: var(--c-bg-light); border-radius: var(--radius-lg); padding: 26px; transition: var(--transition); border: 1px solid var(--c-border); }
.blog-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.blog-top { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.blog-cat { font-size: 12px; font-weight: 600; color: #fff; background: var(--c-primary); padding: 3px 12px; border-radius: var(--radius-full); }
.blog-date { font-size: 13px; color: var(--c-text-muted); }
.blog-title { font-size: 18px; font-weight: 700; color: var(--c-text-dark); line-height: 1.5; margin-bottom: 10px; }
.blog-excerpt { font-size: 14px; color: var(--c-text-medium); line-height: 1.8; margin-bottom: 14px; }
.blog-more { background: none; border: none; color: var(--c-primary); font-weight: 600; font-size: 14px; cursor: pointer; padding: 0; font-family: var(--font); }
.blog-more:hover { text-decoration: underline; }
.blog-full { margin-top: 14px; padding-top: 14px; border-top: 1px dashed var(--c-border); font-size: 14px; color: var(--c-text-medium); line-height: 1.9; }

/* ========== 课程播放器（真实内容） ========== */
.lesson-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 18px; }
.lesson-title { font-size: 20px; font-weight: 700; color: var(--c-text-dark); }
.lesson-meta { font-size: 13px; color: var(--c-text-light); margin-top: 4px; }
.ls-done-tag { font-size: 13px; font-weight: 600; color: var(--c-green); background: var(--c-green-bg); padding: 4px 12px; border-radius: var(--radius-full); white-space: nowrap; }
.lesson-body { display: flex; flex-direction: column; gap: 16px; }
.ls-sec h4 { font-size: 15px; font-weight: 700; color: var(--c-primary); margin-bottom: 6px; }
.ls-sec p { font-size: 14px; color: var(--c-text-medium); line-height: 1.9; }
.lesson-practice { margin-top: 22px; background: var(--c-bg-light); border-radius: var(--radius-md); padding: 20px; }
.lp-title { font-size: 15px; font-weight: 700; color: var(--c-text-dark); margin-bottom: 12px; }
.lp-q { font-size: 14px; color: var(--c-text-medium); margin-bottom: 14px; }
.lp-opts { display: flex; flex-direction: column; gap: 10px; }
.lp-opt { text-align: left; padding: 12px 16px; border: 1.5px solid var(--c-border); border-radius: var(--radius-md); background: #fff; font-size: 14px; color: var(--c-text-medium); cursor: pointer; transition: var(--transition); font-family: var(--font); }
.lp-opt:hover:not(:disabled) { border-color: var(--c-primary-light); background: var(--c-blue-bg); }
.lp-opt:disabled { cursor: default; }
.lp-opt.correct { border-color: var(--c-green); background: var(--c-green-bg); color: var(--c-green); font-weight: 600; }
.lp-opt.wrong { border-color: #DC2626; background: #FEF2F2; color: #DC2626; }
.lp-feedback { margin-top: 14px; padding: 12px 14px; border-radius: var(--radius-sm); font-size: 13px; line-height: 1.8; }
.lp-feedback.correct-fb { background: var(--c-green-bg); color: #15803D; }
.lp-feedback.wrong-fb { background: #FEF2F2; color: #B91C1C; }
.lesson-lock-note { margin-top: 18px; font-size: 13px; color: var(--c-accent); background: var(--c-accent-light); padding: 12px 14px; border-radius: var(--radius-sm); text-align: center; }

/* ========== 购买成功页 ========== */
.order-success { text-align: center; padding: 10px 0; }
.success-icon { margin-bottom: 16px; }
.success-title { font-size: 22px; font-weight: 700; color: var(--c-text-dark); margin-bottom: 10px; }
.success-text { font-size: 14px; color: var(--c-text-medium); margin-bottom: 20px; }
.success-order { background: var(--c-bg-light); border-radius: var(--radius-md); padding: 16px; margin-bottom: 20px; }
.success-order .poi-row { display: flex; justify-content: space-between; font-size: 14px; padding: 6px 0; }
.success-order .poi-row span:first-child { color: var(--c-text-light); }
.success-order .poi-row span:last-child { color: var(--c-text-dark); font-weight: 600; }

/* ---------- 支付方式选择（订单第二步） ---------- */
.pay-head { text-align: center; padding: 20px 0 12px; }
.pay-head-label { font-size: 13px; color: var(--c-text-light); margin-bottom: 6px; }
.order-pay .pay-amount { font-size: 34px; font-weight: 800; color: var(--c-primary); margin: 0; letter-spacing: -0.5px; }
.pay-methods { display: flex; flex-direction: column; gap: 10px; }
.pay-method {
    display: flex; align-items: center; gap: 10px;
    padding: 14px 16px; border: 1.5px solid var(--c-border); border-radius: var(--radius-md);
    cursor: pointer; transition: all .2s ease; background: #fff;
}
.pay-method:hover { border-color: var(--c-primary-light); background: var(--c-bg-light); }
.pay-method input { position: absolute; opacity: 0; width: 0; height: 0; }
.pm-radio {
    width: 18px; height: 18px; border-radius: 50%; border: 2px solid var(--c-border);
    flex-shrink: 0; position: relative; transition: all .2s ease;
}
.pay-method input:checked ~ .pm-radio { border-color: var(--c-primary); }
.pay-method input:checked ~ .pm-radio::after {
    content: ''; position: absolute; inset: 3px; border-radius: 50%; background: var(--c-primary);
}
.pay-method:has(input:checked) { border-color: var(--c-primary); background: rgba(30,64,175,.04); }
.pm-ico {
    width: 30px; height: 30px; border-radius: 8px; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    font-size: 14px; font-weight: 700; color: #fff;
}
.pm-wx { background: #07C160; }
.pm-bank { background: #1E40AF; }
.pm-shop { background: #D97706; }
.pm-name { font-size: 15px; font-weight: 600; color: var(--c-text-dark); }
.pm-tag {
    margin-left: auto; font-size: 11px; font-weight: 600; color: #fff;
    background: var(--c-accent); padding: 3px 8px; border-radius: 20px; white-space: nowrap;
}
.pm-tag-gray { background: transparent; color: var(--c-text-muted); font-weight: 400; padding: 0; }
.order-pay .pay-order-info { margin-bottom: 20px; }
.success-list {
    list-style: none; text-align: left; background: var(--c-bg-light);
    border-radius: var(--radius-md); padding: 16px 18px; margin-bottom: 20px;
}
.success-list li {
    position: relative; padding-left: 22px; font-size: 13.5px; line-height: 1.7;
    color: var(--c-text-medium);
}
.success-list li + li { margin-top: 6px; }
.success-list li::before {
    content: ''; position: absolute; left: 4px; top: 9px; width: 6px; height: 6px;
    border-radius: 50%; background: #16A34A;
}
@media (max-width: 640px) {
    .pay-method { padding: 12px; gap: 8px; }
    .pm-tag-gray { font-size: 10px; }
    .order-pay .pay-amount { font-size: 28px; }
}

/* ---------- 服务条款弹窗 ---------- */
.footer-policy {
    display: flex; flex-wrap: wrap; align-items: center; justify-content: center;
    gap: 10px; padding: 16px 0 4px;
}
.footer-policy a {
    font-size: 13px; color: rgba(255,255,255,.7); text-decoration: none; transition: color .2s ease;
}
.footer-policy a:hover { color: #fff; text-decoration: underline; }
.fp-sep { color: rgba(255,255,255,.25); font-size: 12px; }
.inline-link { color: var(--c-primary); text-decoration: none; font-weight: 600; }
.inline-link:hover { text-decoration: underline; }
.service-card-desc .inline-link { color: #93C5FD; }
.modal-policy { max-width: 720px; }
.policy-head { border-bottom: 1px solid var(--c-border); padding-bottom: 16px; margin-bottom: 20px; }
.policy-title { font-size: 22px; font-weight: 700; color: var(--c-text-dark); margin-bottom: 6px; }
.policy-meta { font-size: 12.5px; color: var(--c-text-muted); }
.policy-body { max-height: 52vh; overflow-y: auto; padding-right: 6px; }
.policy-body::-webkit-scrollbar { width: 6px; }
.policy-body::-webkit-scrollbar-thumb { background: var(--c-border); border-radius: 3px; }
.policy-h {
    font-size: 15px; font-weight: 700; color: var(--c-primary);
    margin: 18px 0 6px; line-height: 1.5;
}
.policy-h:first-child { margin-top: 0; }
.policy-p { font-size: 14px; line-height: 1.85; color: var(--c-text-medium); }
.policy-foot {
    margin: 20px 0 16px; padding: 14px 16px; background: var(--c-blue-bg);
    border-radius: var(--radius-md); font-size: 13px; color: var(--c-text-medium); line-height: 1.7;
}
.policy-foot strong { color: var(--c-primary); }
@media (max-width: 640px) {
    .policy-title { font-size: 19px; }
    .policy-body { max-height: 46vh; }
    .footer-policy { gap: 8px; }
    .footer-policy a { font-size: 12px; }
}