/* ============================================
   沈阳星迹 - 定制设计样式
   设计理念：暖色编辑风格 / 复古印刷感 / 强辨识度
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@500;700;900&family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

:root {
    --color-bg: #f4ede0;
    --color-paper: #fbf6ec;
    --color-ink: #1f1a17;
    --color-ink-soft: #4a3f37;
    --color-accent: #c8462c;
    --color-accent-dark: #9c3320;
    --color-secondary: #2d5a4f;
    --color-secondary-light: #4a7868;
    --color-gold: #c89b3c;
    --color-line: #d8cdb6;
    --shadow-soft: 0 1px 0 rgba(31, 26, 23, 0.06);
    --shadow-card: 0 8px 24px -12px rgba(31, 26, 23, 0.18);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background-color: var(--color-bg);
    background-image:
        radial-gradient(circle at 1px 1px, rgba(31, 26, 23, 0.04) 1px, transparent 0);
    background-size: 24px 24px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    color: var(--color-ink);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ====== 头部 ====== */
header {
    background: var(--color-paper);
    border-bottom: 3px double var(--color-ink);
    color: var(--color-ink);
    padding: 0;
    position: relative;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg,
        var(--color-accent) 0%,
        var(--color-accent) 33%,
        var(--color-gold) 33%,
        var(--color-gold) 66%,
        var(--color-secondary) 66%,
        var(--color-secondary) 100%);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 28px 20px 22px;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 30px;
    flex-wrap: wrap;
}

.logo {
    font-family: 'Noto Serif SC', serif;
    font-size: 32px;
    font-weight: 900;
    color: var(--color-ink);
    letter-spacing: -1px;
    position: relative;
    padding-left: 14px;
}

.logo::before {
    content: '';
    position: absolute;
    left: 0;
    top: 6px;
    bottom: 6px;
    width: 5px;
    background: var(--color-accent);
}



nav {
    border-top: 1px solid var(--color-line);
    padding-top: 12px;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 0;
}

nav li {
    position: relative;
}

nav li + li::before {
    content: '·';
    color: var(--color-line);
    margin: 0 14px;
}

nav a {
    color: var(--color-ink-soft);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 0.5px;
    padding: 4px 2px;
    transition: color 0.25s;
    position: relative;
}

nav a:hover {
    color: var(--color-accent);
}

nav a::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -14px;
    height: 2px;
    background: var(--color-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

nav a:hover::after {
    transform: scaleX(1);
}

/* ====== 横幅 ====== */
.banner {
    width: 100%;
    margin: 30px auto;
    max-width: 1200px;
    padding: 0 20px;
    overflow: visible;
}

.banner-image {
    width: 100%;
    height: 420px;
    object-fit: cover;
    display: block;
    border: 1px solid var(--color-ink);
    box-shadow: 12px 12px 0 var(--color-accent);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.banner:hover .banner-image {
    transform: translate(-2px, -2px);
    box-shadow: 14px 14px 0 var(--color-accent);
}

/* ====== 主体 ====== */
main {
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 20px 50px;
    width: 100%;
}

.page-title {
    font-family: 'Noto Serif SC', serif;
    font-size: 38px;
    font-weight: 900;
    margin-bottom: 12px;
    color: var(--color-ink);
    text-align: center;
    letter-spacing: 4px;
    position: relative;
    padding-bottom: 18px;
}

.page-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--color-accent);
    margin: 14px auto 0;
    position: relative;
}

.page-title::before {
    content: '✦ 沈阳星迹 ✦ 二手优选 ✦';
    display: block;
    font-family: 'Noto Sans SC', sans-serif;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 6px;
    color: var(--color-accent);
    margin-bottom: 8px;
}

/* ====== 网格与卡片 ====== */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 28px;
    margin-top: 40px;
}

.card {
    background: var(--color-paper);
    border: 1px solid var(--color-ink);
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.card::before {
    content: '';
    position: absolute;
    inset: 6px -6px -6px 6px;
    background: var(--color-gold);
    z-index: -1;
    transition: inset 0.3s ease;
}

.card:hover {
    transform: translate(-2px, -2px);
}

.card:hover::before {
    inset: 10px -10px -10px 10px;
}

.card-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
    border-bottom: 1px solid var(--color-ink);
    filter: saturate(0.92) contrast(1.02);
    transition: filter 0.4s ease;
}

.card:hover .card-image {
    filter: saturate(1.1) contrast(1.05);
}

.card-content {
    padding: 18px 18px 20px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.card-title {
    font-family: 'Noto Serif SC', serif;
    font-size: 19px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--color-ink);
    line-height: 1.4;
    position: relative;
    padding-left: 10px;
}

.card-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 6px;
    bottom: 4px;
    width: 3px;
    background: var(--color-accent);
}

.card-info {
    color: var(--color-ink-soft);
    font-size: 13px;
    margin-bottom: 6px;
    letter-spacing: 0.3px;
}

.card-info::before {
    content: '— ';
    color: var(--color-gold);
}

.card-price {
    color: var(--color-accent);
    font-family: 'Noto Serif SC', serif;
    font-size: 24px;
    font-weight: 900;
    margin-top: 14px;
    margin-bottom: 14px;
    padding-top: 12px;
    border-top: 1px dashed var(--color-line);
    letter-spacing: -0.5px;
}

.card-price::before {
    content: '¥';
    font-size: 16px;
    margin-right: 2px;
    color: var(--color-accent-dark);
}

/* ====== 按钮 ====== */
.btn {
    display: inline-block;
    padding: 11px 22px;
    background: var(--color-ink);
    color: var(--color-paper);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 2px;
    border: 1px solid var(--color-ink);
    cursor: pointer;
    transition: all 0.25s ease;
    align-self: flex-start;
    position: relative;
    text-transform: uppercase;
    font-family: 'Noto Sans SC', sans-serif;
}

.btn::after {
    content: ' →';
    transition: transform 0.25s ease;
    display: inline-block;
}

.btn:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-paper);
}

.btn:hover::after {
    transform: translateX(4px);
}

.btn-secondary {
    background: transparent;
    color: var(--color-ink);
}

.btn-secondary:hover {
    background: var(--color-ink);
    color: var(--color-paper);
}

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

/* ====== 详情页 ====== */
.detail-image {
    width: 100%;
    max-width: 600px;
    height: 420px;
    object-fit: cover;
    border: 1px solid var(--color-ink);
    box-shadow: 10px 10px 0 var(--color-secondary);
    margin-bottom: 30px;
    display: block;
}

.detail-info {
    background: var(--color-paper);
    padding: 30px;
    border: 1px solid var(--color-ink);
    position: relative;
}

.detail-info::before {
    content: '';
    position: absolute;
    inset: 8px -8px -8px 8px;
    background: var(--color-gold);
    z-index: -1;
}

.detail-title {
    font-family: 'Noto Serif SC', serif;
    font-size: 30px;
    font-weight: 900;
    margin-bottom: 18px;
    color: var(--color-ink);
    line-height: 1.3;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--color-line);
}

.detail-price {
    font-family: 'Noto Serif SC', serif;
    font-size: 36px;
    color: var(--color-accent);
    font-weight: 900;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.detail-description {
    line-height: 1.9;
    color: var(--color-ink-soft);
    margin-bottom: 24px;
    font-size: 15px;
}

.contact-info {
    background: var(--color-bg);
    padding: 20px;
    border: 1px dashed var(--color-ink-soft);
    margin-top: 24px;
    position: relative;
}

.contact-info::before {
    content: '联系方式';
    position: absolute;
    top: -10px;
    left: 16px;
    background: var(--color-paper);
    padding: 0 8px;
    font-size: 12px;
    font-weight: 700;
    color: var(--color-accent);
    letter-spacing: 2px;
}

.contact-item {
    margin-bottom: 12px;
    font-size: 15px;
    color: var(--color-ink);
    display: flex;
    align-items: center;
    gap: 10px;
}

.contact-item::before {
    content: '◆';
    color: var(--color-gold);
    font-size: 10px;
}

.phone-hidden {
    color: var(--color-accent);
    cursor: pointer;
    text-decoration: underline;
    text-decoration-style: dotted;
    text-underline-offset: 4px;
    font-weight: 500;
}

.phone-visible {
    color: var(--color-ink);
    font-weight: 700;
    font-family: 'Noto Serif SC', serif;
}

/* ====== 表单 ====== */
.form-group {
    margin-bottom: 22px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 700;
    color: var(--color-ink);
    font-size: 13px;
    letter-spacing: 1px;
    text-transform: uppercase;
    position: relative;
    padding-left: 12px;
}

.form-group label::before {
    content: '';
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 4px;
    width: 3px;
    background: var(--color-accent);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 14px;
    background: var(--color-paper);
    border: 1px solid var(--color-ink);
    border-radius: 0;
    font-size: 15px;
    font-family: inherit;
    color: var(--color-ink);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 4px 4px 0 var(--color-gold);
}

.form-group textarea {
    resize: vertical;
    min-height: 130px;
}

/* ====== 登录/注册 ====== */
.auth-container {
    max-width: 420px;
    margin: 60px auto;
    background: var(--color-paper);
    padding: 36px 32px;
    border: 1px solid var(--color-ink);
    position: relative;
}

.auth-container::before {
    content: '';
    position: absolute;
    inset: 8px -8px -8px 8px;
    background: var(--color-secondary);
    z-index: -1;
}

.auth-title {
    text-align: center;
    font-family: 'Noto Serif SC', serif;
    font-size: 26px;
    font-weight: 900;
    margin-bottom: 30px;
    color: var(--color-ink);
    letter-spacing: 4px;
    position: relative;
    padding-bottom: 16px;
}

.auth-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: var(--color-accent);
}

.auth-link {
    text-align: center;
    margin-top: 22px;
    font-size: 14px;
    color: var(--color-ink-soft);
}

.auth-link a {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 700;
    border-bottom: 1px solid var(--color-accent);
}

.auth-link a:hover {
    color: var(--color-accent-dark);
}

/* ====== 发布费用提示 ====== */
.publish-fee {
    background: var(--color-paper);
    border: 2px solid var(--color-gold);
    padding: 18px;
    margin-bottom: 24px;
    text-align: center;
    position: relative;
}

.publish-fee::before,
.publish-fee::after {
    content: '✦';
    position: absolute;
    color: var(--color-gold);
    font-size: 14px;
}

.publish-fee::before {
    top: 8px;
    left: 10px;
}

.publish-fee::after {
    bottom: 8px;
    right: 10px;
}

.publish-fee strong {
    color: var(--color-accent);
    font-size: 18px;
    font-family: 'Noto Serif SC', serif;
    letter-spacing: 1px;
}

/* ====== 页脚 ====== */
footer {
    background: var(--color-ink);
    color: var(--color-paper);
    text-align: center;
    padding: 28px 20px 24px;
    margin-top: auto;
    border-top: 6px solid var(--color-accent);
    position: relative;
}

footer::before {
    content: '沈阳星迹 · SHENYANG XINGJI MEDIA';
    display: block;
    font-family: 'Noto Serif SC', serif;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 4px;
    color: var(--color-gold);
    margin-bottom: 12px;
}

footer p,
footer a {
    color: var(--color-paper);
    margin-bottom: 8px;
    opacity: 0.85;
    font-size: 13px;
    text-decoration: none;
    letter-spacing: 0.5px;
    transition: opacity 0.25s, color 0.25s;
    display: inline-block;
    margin-right: 0;
}

footer a:hover {
    opacity: 1;
    color: var(--color-gold);
}

/* ====== 响应式 ====== */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .logo {
        font-size: 26px;
    }

    .logo::after {
        display: none;
    }

    nav ul {
        flex-wrap: wrap;
        gap: 4px 0;
    }

    nav li + li::before {
        margin: 0 8px;
    }

    .banner-image {
        height: 220px;
        box-shadow: 6px 6px 0 var(--color-accent);
    }

    .page-title {
        font-size: 28px;
        letter-spacing: 2px;
    }

    .page-title::before {
        font-size: 9px;
        letter-spacing: 3px;
    }

    .grid {
        grid-template-columns: 1fr;
        gap: 22px;
    }

    .detail-title {
        font-size: 24px;
    }

    .detail-price {
        font-size: 30px;
    }
}

/* ====== 滚动条 ====== */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--color-ink);
    border: 2px solid var(--color-bg);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent);
}

/* ====== 选中文本 ====== */
::selection {
    background: var(--color-accent);
    color: var(--color-paper);
}