/* ============================================
   一德老师官网 · 主样式表 main.css
   版本: v1.0 | 日期: 2026-05
   ============================================ */

/* ===== 重置与基础 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    line-height: 1.7;
    color: #333;
    background: #fafaf7;
    overflow-x: hidden;
}

a {
    color: #8b0000;
    text-decoration: none;
    transition: color 0.3s;
}

a:hover {
    color: #c41e3a;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ===== 颜色变量 ===== */
:root {
    --primary: #8b0000;        /* 主色:深红 */
    --primary-light: #c41e3a;  /* 浅红 */
    --gold: #c8a96a;           /* 金色 */
    --dark: #2c2c2c;           /* 深灰 */
    --gray: #666;              /* 中灰 */
    --light: #f5f3ee;          /* 米白 */
    --bg: #fafaf7;             /* 背景 */
    --border: #e0dcd0;         /* 边框 */
}

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

/* ===== 导航栏 ===== */
.navbar {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    padding: 12px 0;
}

.nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-logo img {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--gold);
}

.nav-logo .logo-text {
    font-size: 18px;
    font-weight: 600;
    color: var(--dark);
}

.nav-logo .logo-sub {
    font-size: 12px;
    color: var(--gray);
}

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

.nav-menu a {
    color: var(--dark);
    font-size: 15px;
    font-weight: 500;
    padding: 6px 0;
    border-bottom: 2px solid transparent;
    transition: all 0.3s;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.nav-cta {
    background: var(--primary);
    color: #fff !important;
    padding: 10px 20px !important;
    border-radius: 4px;
    border: none !important;
}

.nav-cta:hover {
    background: var(--primary-light);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--dark);
}

/* ===== 通用区块 ===== */
.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 36px;
    color: var(--dark);
    margin-bottom: 12px;
    font-weight: 700;
}

.section-title .subtitle {
    color: var(--gray);
    font-size: 16px;
}

.section-title .divider {
    width: 60px;
    height: 3px;
    background: var(--gold);
    margin: 20px auto;
}

/* ===== 按钮 ===== */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}

.btn-primary:hover {
    background: var(--primary-light);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(139, 0, 0, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: #fff;
}

.btn-gold {
    background: var(--gold);
    color: #fff;
}

.btn-gold:hover {
    background: #b89656;
    color: #fff;
}

/* ===== Hero 首屏 ===== */
.hero {
    background: linear-gradient(135deg, #f5f3ee 0%, #ebe4d3 100%);
    padding: 100px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text h1 {
    font-size: 48px;
    line-height: 1.3;
    color: var(--dark);
    margin-bottom: 20px;
    font-weight: 700;
}

.hero-text h1 .highlight {
    color: var(--primary);
}

.hero-text .tagline {
    font-size: 20px;
    color: var(--gray);
    margin-bottom: 30px;
    line-height: 1.6;
}

.hero-credentials {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 36px;
}

.credential-tag {
    background: #fff;
    border: 1px solid var(--border);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    color: var(--dark);
}

.credential-tag::before {
    content: "✓ ";
    color: var(--gold);
    font-weight: bold;
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-image {
    position: relative;
}

.hero-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.hero-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--primary);
    color: #fff;
    padding: 10px 20px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 500;
}

/* ===== 9 项困惑卡片 3×3 矩阵 ===== */
.confusion-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.confusion-card {
    background: #fff;
    padding: 32px 24px;
    border-radius: 8px;
    border: 1px solid var(--border);
    text-align: center;
    transition: all 0.3s;
    cursor: pointer;
}

.confusion-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 30px rgba(139, 0, 0, 0.12);
    border-color: var(--primary);
}

.confusion-card .icon {
    font-size: 42px;
    margin-bottom: 16px;
}

.confusion-card h3 {
    font-size: 18px;
    color: var(--dark);
    margin-bottom: 12px;
    font-weight: 600;
}

.confusion-card p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.6;
}

/* ===== 媒体背书 ===== */
.media-section {
    background: #fff;
    padding: 80px 0;
}

.media-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
    align-items: center;
}

.media-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.media-text h2 {
    font-size: 32px;
    margin-bottom: 20px;
    color: var(--dark);
}

.media-text .highlight-quote {
    font-size: 18px;
    color: var(--primary);
    font-style: italic;
    margin: 20px 0;
    padding-left: 16px;
    border-left: 3px solid var(--gold);
}

.media-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.media-tag {
    background: var(--light);
    padding: 6px 14px;
    border-radius: 16px;
    font-size: 13px;
    color: var(--dark);
}

/* ===== 服务卡片网格 ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.service-card {
    background: #fff;
    padding: 36px 28px;
    border-radius: 8px;
    border-top: 4px solid var(--primary);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    transition: all 0.3s;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
}

.service-card .service-icon {
    font-size: 36px;
    margin-bottom: 16px;
}

.service-card h3 {
    font-size: 22px;
    color: var(--dark);
    margin-bottom: 16px;
}

.service-card .price {
    color: var(--primary);
    font-size: 18px;
    font-weight: 600;
    margin: 12px 0;
}

.service-card ul {
    list-style: none;
    margin: 16px 0;
}

.service-card ul li {
    padding: 6px 0;
    font-size: 14px;
    color: var(--gray);
    padding-left: 20px;
    position: relative;
}

.service-card ul li::before {
    content: "▸";
    position: absolute;
    left: 0;
    color: var(--gold);
}

/* ===== 反馈墙 ===== */
.feedback-wall {
    background: var(--light);
    padding: 80px 0;
}

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

.feedback-card {
    background: #fff;
    padding: 24px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.feedback-card .category-tag {
    display: inline-block;
    background: var(--primary);
    color: #fff;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    margin-bottom: 12px;
}

.feedback-card .feedback-image {
    margin: 16px 0;
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid var(--border);
    height: 320px;
    background: #f5f5f5;
}
.feedback-card .feedback-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.feedback-card h4 {
    font-size: 16px;
    color: var(--dark);
    margin-bottom: 10px;
}

.feedback-card .feedback-text {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.7;
}

.feedback-card .feedback-meta {
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px dashed var(--border);
    font-size: 12px;
    color: var(--gray);
}

/* ===== 案例卡片 ===== */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.case-card {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    transition: all 0.3s;
}

.case-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
}

.case-card .case-header {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    padding: 24px;
}

.case-card .case-number {
    font-size: 14px;
    opacity: 0.8;
}

.case-card .case-title {
    font-size: 18px;
    font-weight: 600;
    margin-top: 8px;
    line-height: 1.5;
}

.case-card .case-body {
    padding: 24px;
}

.case-card .case-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 12px;
}

.case-card .case-tag {
    background: var(--light);
    color: var(--dark);
    padding: 3px 10px;
    border-radius: 10px;
    font-size: 12px;
}

.case-card .case-excerpt {
    font-size: 14px;
    color: var(--gray);
    margin-bottom: 16px;
    line-height: 1.7;
}

.case-card .case-read {
    color: var(--primary);
    font-size: 14px;
    font-weight: 500;
}

/* ===== Footer ===== */
.footer {
    background: var(--dark);
    color: #fff;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h4 {
    color: var(--gold);
    margin-bottom: 20px;
    font-size: 16px;
}

.footer-col p,
.footer-col li {
    color: #bbb;
    font-size: 14px;
    line-height: 2;
}

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

.footer-col a {
    color: #bbb;
}

.footer-col a:hover {
    color: var(--gold);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #444;
    color: #888;
    font-size: 13px;
}

/* ===== 文章内容样式 ===== */
.article {
    background: #fff;
    padding: 60px 0;
}

.article-inner {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.article h1 {
    font-size: 36px;
    color: var(--dark);
    margin-bottom: 20px;
    line-height: 1.4;
}

.article .article-meta {
    color: var(--gray);
    font-size: 14px;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.article h2 {
    font-size: 26px;
    color: var(--primary);
    margin: 40px 0 20px;
    padding-left: 16px;
    border-left: 4px solid var(--gold);
}

.article h3 {
    font-size: 20px;
    color: var(--dark);
    margin: 30px 0 16px;
}

.article p {
    font-size: 16px;
    line-height: 1.9;
    color: #444;
    margin-bottom: 18px;
}

.article blockquote {
    background: var(--light);
    border-left: 4px solid var(--primary);
    padding: 20px 24px;
    margin: 24px 0;
    font-style: italic;
    color: var(--dark);
}

.article ul,
.article ol {
    margin: 16px 0 16px 24px;
}

.article ul li,
.article ol li {
    margin-bottom: 8px;
    line-height: 1.8;
}

/* ===== 表单 ===== */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 15px;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

/* ===== FAQ ===== */
.faq-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: 16px;
    overflow: hidden;
}

.faq-question {
    padding: 20px 24px;
    cursor: pointer;
    font-weight: 600;
    color: var(--dark);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #fff;
    transition: background 0.3s;
}

.faq-question:hover {
    background: var(--light);
}

.faq-question::after {
    content: "+";
    font-size: 24px;
    color: var(--primary);
    transition: transform 0.3s;
}

.faq-item.active .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    padding: 0 24px;
    color: var(--gray);
    line-height: 1.8;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 24px 20px;
}

/* ===== 通用工具类 ===== */
.text-center { text-align: center; }
.mt-20 { margin-top: 20px; }
.mt-40 { margin-top: 40px; }
.mb-20 { margin-bottom: 20px; }
.mb-40 { margin-bottom: 40px; }

/* <!-- 主样式表完成,响应式样式见 responsive.css --> */

/* ============================================================
   v2.2 升级片段:upcoming 占位链接视觉降级
   追加到 /css/main.css 末尾,不替换任何已有样式
   更新时间:2026-05-25
   ============================================================ */

/* upcoming 链接基础样式:浅褐 + 虚线下划线 + 禁止光标 */
a[data-status="upcoming"] {
  color: #a89070 !important;
  border-bottom: 1px dashed #c8b896 !important;
  cursor: not-allowed !important;
  position: relative;
}

/* upcoming 链接 hover 不变色,强化"不可点击"暗示 */
a[data-status="upcoming"]:hover {
  color: #a89070 !important;
  border-bottom-color: #c8b896 !important;
}

/* upcoming 链接自动追加"·即将上线"小灰字标记 */
a[data-status="upcoming"]::after {
  content: " · 即将上线";
  font-size: 12px;
  color: #b8a888;
  font-weight: normal;
  margin-left: 2px;
  letter-spacing: 0;
}

/* 在 cta-button 等按钮里如果出现 upcoming,保持按钮外观但弱化 */
a.cta-button[data-status="upcoming"] {
  background: #c8b896 !important;
  color: #fff !important;
  border-bottom: none !important;
  cursor: not-allowed !important;
}

a.cta-button[data-status="upcoming"]::after {
  content: " · 即将上线";
  font-size: 13px;
  color: #f6f0e4;
  margin-left: 4px;
}

/* 延伸阅读区域 upcoming 链接的左侧标识(可选,提升识别度) */
.related-articles a[data-status="upcoming"]::before {
  content: "○ ";
  color: #c8b896;
  font-size: 13px;
}

/* 移动端微调:小屏下"·即将上线"换行更自然 */
@media (max-width: 480px) {
  a[data-status="upcoming"]::after {
    font-size: 11px;
  }
}

/* upcoming 提示气泡(配合 search.js 弹出) */
.upcoming-toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(90, 62, 38, 0.92);
  color: #fdfbf7;
  padding: 10px 22px;
  border-radius: 22px;
  font-size: 14px;
  z-index: 9999;
  box-shadow: 0 4px 12px rgba(58, 42, 26, 0.25);
  animation: toastFadeInOut 2.4s ease forwards;
  pointer-events: none;
}

@keyframes toastFadeInOut {
  0% { opacity: 0; transform: translateX(-50%) translateY(10px); }
  15% { opacity: 1; transform: translateX(-50%) translateY(0); }
  85% { opacity: 1; transform: translateX(-50%) translateY(0); }
  100% { opacity: 0; transform: translateX(-50%) translateY(-10px); }
}