/* 日系复古温暖胶片手账主题 (Warm Vintage Film-Journal Theme) */
:root {
    --bg-color: #f6f3eb;
    --paper-color: #ffffff;
    --border-color: #e3dcd0;
    --border-hover: #c9bfae;
    
    --text-main: #383431;
    --text-muted: #827b73;
    
    --accent-red: #cf5b44;
    --accent-red-glow: rgba(207, 91, 68, 0.1);
    --accent-green: #52705c;
    
    --font-serif: 'Noto Serif SC', 'Playfair Display', Georgia, 'Times New Roman', serif;
    --shadow-soft: 0 8px 30px rgba(60, 56, 52, 0.03);
    --shadow-medium: 0 12px 35px rgba(60, 56, 52, 0.06);
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-serif);
    line-height: 1.8;
    min-height: 100vh;
    padding-bottom: 60px;
}

.vintage-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 80% 20%, rgba(207, 91, 68, 0.02) 0%, transparent 60%),
                radial-gradient(circle at 10% 80%, rgba(82, 112, 92, 0.02) 0%, transparent 50%);
    z-index: -2;
    pointer-events: none;
}

.container {
    max-width: 700px;
    margin: 0 auto;
    padding: 50px 20px;
}

/* 齿孔底片顶条 */
.film-header {
    height: 14px;
    background-image: radial-gradient(circle, var(--paper-color) 3px, transparent 4px);
    background-size: 14px 14px;
    background-color: var(--text-main);
    border-radius: 12px 12px 0 0;
    width: 100%;
    border-bottom: 2px solid var(--border-color);
}

/* 个人名片 Card */
.blogger-card {
    background: var(--paper-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-soft);
    margin-bottom: 50px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: transform 0.4s cubic-bezier(0.165, 0.84, 0.44, 1), box-shadow 0.4s ease, border-color 0.4s ease;
}

.blogger-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
    border-color: var(--border-hover);
}

.blogger-card-content {
    padding: 35px;
    display: flex;
    gap: 30px;
    align-items: center;
}

@media (max-width: 576px) {
    .blogger-card-content {
        flex-direction: column;
        text-align: center;
        padding: 30px 20px;
    }
}

.avatar-wrapper {
    width: 88px;
    height: 88px;
    border-radius: 50%;
    padding: 3px;
    border: 1px dashed var(--border-hover);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-color);
}

.avatar-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.blogger-info {
    flex-grow: 1;
}

.blogger-name {
    font-size: 26px;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 8px;
    color: var(--text-main);
}

.blogger-bio {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 18px;
    line-height: 1.6;
}

.blogger-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

@media (max-width: 576px) {
    .blogger-meta {
        justify-content: center;
    }
}

.meta-badge {
    background: #faf9f6;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 11px;
    padding: 4px 12px;
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font-family: monospace, sans-serif;
    transition: all 0.25s ease;
}

.meta-badge:hover {
    background: var(--accent-red-glow);
    color: var(--accent-red);
    border-color: var(--accent-red);
}

.meta-badge .icon {
    width: 12px;
    height: 12px;
}

/* 时间线列表 */
.timeline-title {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 25px;
    padding-left: 5px;
    border-left: 3px solid var(--accent-red);
}

.timeline-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

/* 文章卡片 */
.post-card {
    background: var(--paper-color);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    box-shadow: var(--shadow-soft);
    padding: 30px;
    cursor: pointer;
    transition: all 0.35s cubic-bezier(0.165, 0.84, 0.44, 1);
    position: relative;
    overflow: hidden;
}

.post-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background-color: var(--border-color);
    transition: background-color 0.35s ease;
}

.post-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
    border-color: var(--border-hover);
}

.post-card:hover::before {
    background-color: var(--accent-red);
}

.post-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 15px;
    margin-bottom: 12px;
}

@media (max-width: 576px) {
    .post-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
    }
}

.post-title {
    font-size: 19px;
    font-weight: 700;
    line-height: 1.4;
    color: var(--text-main);
}

.post-date {
    font-size: 12px;
    color: var(--text-muted);
    font-family: sans-serif;
    flex-shrink: 0;
}

.post-summary {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
}

/* 展开的文章卡片样式 */
.post-card.expanded {
    cursor: default;
    transform: none;
    box-shadow: var(--shadow-medium);
    border-color: var(--border-hover);
}

.post-card.expanded::before {
    background-color: var(--accent-red);
}

.post-content {
    font-size: 15px;
    color: var(--text-main);
    line-height: 1.8;
    margin-top: 20px;
    border-top: 1px dashed var(--border-color);
    padding-top: 20px;
    white-space: pre-wrap;
}

/* 评论区结构 */
.comments-section {
    margin-top: 30px;
    border-top: 1px solid var(--border-color);
    padding-top: 25px;
}

.comments-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-muted);
    margin-bottom: 15px;
}

.comments-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 25px;
}

.comment-item {
    background: #fbfbf9;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 15px;
    font-size: 13.5px;
}

.comment-meta {
    display: flex;
    justify-content: space-between;
    margin-bottom: 6px;
    font-size: 11.5px;
    color: var(--text-muted);
}

.comment-author {
    font-weight: 700;
    color: var(--text-main);
}

.comment-time {
    font-family: sans-serif;
}

.comment-text {
    line-height: 1.6;
    color: var(--text-main);
}

/* 评论表单 */
.comment-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.comment-textarea {
    width: 100%;
    min-height: 72px;
    background: #fafaf8;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 12px;
    font-family: var(--font-serif);
    font-size: 13.5px;
    color: var(--text-main);
    resize: vertical;
    transition: all 0.25s ease;
}

.comment-textarea:focus {
    outline: none;
    background: var(--paper-color);
    border-color: var(--accent-red);
}

.comment-form-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
}

.pow-hint {
    font-size: 11px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 5px;
}

.btn-submit {
    background-color: var(--text-main);
    color: var(--paper-color);
    border: none;
    border-radius: 6px;
    padding: 8px 18px;
    font-family: var(--font-serif);
    font-size: 13px;
    cursor: pointer;
    transition: background-color 0.25s ease;
}

.btn-submit:hover {
    background-color: var(--accent-red);
}

.btn-submit:disabled {
    background-color: var(--border-color);
    color: var(--text-muted);
    cursor: not-allowed;
}

/* 各种加载提示和动画 */
.loading-spinner {
    padding: 40px;
    text-align: center;
    color: var(--text-muted);
    font-size: 13.5px;
}

.spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-color);
    border-top-color: var(--accent-red);
    border-radius: 50%;
    margin: 0 auto 12px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 底部落款 */
.site-footer {
    margin-top: 60px;
    text-align: center;
    border-top: 1px dashed var(--border-color);
    padding-top: 30px;
    font-size: 12px;
    color: var(--text-muted);
}

.sovereignty-badge {
    margin-top: 10px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--accent-green);
    background-color: rgba(82, 112, 92, 0.05);
    padding: 4px 12px;
    border-radius: 6px;
}

.icon, .icon-small {
    width: 14px;
    height: 14px;
    vertical-align: middle;
}

.icon-small {
    width: 12px;
    height: 12px;
}