/* ============================================================
   杏林墨香 · 古风主题
   宣纸 + 墨色 + 朱砂 + 竹青
   ============================================================ */
:root {
    --paper: #f7f1e3;
    --paper-deep: #efe6d3;
    --paper-light: #fdfaf3;
    --ink: #2f2a26;
    --ink-soft: #5c534b;
    --ink-faint: #8b8278;
    --cinnabar: #a63a2e;
    --cinnabar-deep: #8c2f25;
    --bamboo: #6f8465;
    --gold: #b08d4f;
    --line: #d9ccb2;
    --shadow: rgba(80, 60, 30, 0.12);
    --radius: 6px;
    --serif: "Noto Serif SC", "Source Han Serif SC", "Source Han Serif CN", "Songti SC", "STSong", "SimSun", "Noto Serif", "Times New Roman", serif;
    --kai: "Ma Shan Zheng", "STKaiti", "KaiTi", "Kaiti SC", "楷体", cursive;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--serif);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    color: var(--ink);
    background-color: var(--paper);
    background-image:
        radial-gradient(ellipse 80% 50% at 50% -10%, rgba(214, 190, 150, 0.25), transparent 60%),
        radial-gradient(ellipse 60% 40% at 90% 20%, rgba(160, 130, 90, 0.08), transparent 60%),
        repeating-linear-gradient(0deg, rgba(120, 100, 60, 0.018) 0 2px, transparent 2px 4px);
    line-height: 1.9;
}

/* 角落水墨晕染 */
.ink-wash {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background:
        radial-gradient(circle 220px at 100% 0%, rgba(60, 50, 40, 0.06), transparent 65%),
        radial-gradient(circle 180px at 0% 100%, rgba(70, 58, 44, 0.05), transparent 60%);
}

.container {
    max-width: 1040px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

a { color: var(--cinnabar); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--cinnabar-deep); }

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

/* ---------------- 顶部导航 ---------------- */
.site-header {
    background: linear-gradient(180deg, #3a322c 0%, #2f2a26 100%);
    border-bottom: 3px solid var(--cinnabar);
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: 0 2px 12px rgba(0,0,0,0.18);
}

.site-header .container { max-width: 1280px; }

.header-inner {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 12px 24px;
}

.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }

.brand-seal {
    width: 52px;
    height: 52px;
    display: grid;
    place-items: center;
    background: var(--cinnabar);
    color: #f7ecd9;
    font-size: 20px;
    letter-spacing: 2px;
    border-radius: 8px;
    box-shadow: inset 0 0 0 2px rgba(247, 236, 217, 0.35), 0 2px 6px rgba(0,0,0,0.3);
    transform: rotate(-3deg);
    font-family: var(--kai);
}

.brand-text { display: flex; flex-direction: column; line-height: 1.2; white-space: nowrap; }

.brand-name {
    color: #f3ead6;
    font-size: 22px;
    letter-spacing: 6px;
    font-family: var(--kai);
}

.brand-sub { color: #b8a98d; font-size: 12px; letter-spacing: 3px; }

.main-nav { display: flex; flex: 1 1 auto; justify-content: center; gap: 24px; min-width: 0; }

.main-nav a {
    color: #d8ccb4;
    font-size: 16px;
    padding: 6px 2px;
    position: relative;
    letter-spacing: 2px;
    white-space: nowrap;
    flex-shrink: 0;
}

.main-nav a::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 0;
    height: 2px;
    background: var(--cinnabar);
    transform: translateX(-50%);
    transition: width 0.25s;
}

.main-nav a:hover { color: #fff; }
.main-nav a:hover::after { width: 100%; }

.user-area { display: flex; gap: 10px; align-items: center; flex-shrink: 0; }

.btn {
    display: inline-block;
    padding: 7px 16px;
    font-family: var(--serif);
    font-size: 15px;
    letter-spacing: 2px;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid transparent;
    text-align: center;
    white-space: nowrap;
}

.btn-ghost { color: #d8ccb4; border-color: #6b5f52; }
.btn-ghost:hover { color: #fff; border-color: var(--cinnabar); background: rgba(166,58,46,0.15); }

.btn-line { color: #f3ead6; background: var(--cinnabar); }
.btn-line:hover { background: var(--cinnabar-deep); color: #fff; }

.btn-primary { background: var(--cinnabar); color: #f7ecd9; }
.btn-primary:hover { background: var(--cinnabar-deep); color: #fff; }

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

.btn-block { display: block; width: 100%; }

.nav-toggle { display: none; background: none; border: none; color: #f3ead6; font-size: 24px; cursor: pointer; }

/* ---------------- 首屏（首页大图） ---------------- */
.hero {
    position: relative;
    overflow: hidden;
    text-align: center;
    color: #f5eddb;
    padding: 96px 24px 88px;
    background:
        radial-gradient(ellipse 60% 80% at 20% 90%, rgba(166,58,46,0.28), transparent 55%),
        radial-gradient(ellipse 50% 60% at 85% 15%, rgba(111,132,101,0.25), transparent 60%),
        linear-gradient(175deg, #4a4036 0%, #35302b 55%, #2b2622 100%);
    border-bottom: 3px solid var(--gold);
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle 3px at 20% 30%, rgba(245,237,219,0.35) 1px, transparent 1.5px),
        radial-gradient(circle 2px at 70% 60%, rgba(245,237,219,0.25) 1px, transparent 1.5px),
        radial-gradient(circle 2px at 45% 80%, rgba(245,237,219,0.3) 1px, transparent 1.5px),
        radial-gradient(circle 2px at 88% 40%, rgba(245,237,219,0.2) 1px, transparent 1.5px),
        radial-gradient(circle 2px at 12% 70%, rgba(245,237,219,0.2) 1px, transparent 1.5px);
    animation: float-dots 9s ease-in-out infinite alternate;
}

@keyframes float-dots {
    from { opacity: 0.5; transform: translateY(0); }
    to { opacity: 1; transform: translateY(-14px); }
}

.hero-inner { position: relative; z-index: 1; max-width: 760px; margin: 0 auto; }

.hero-moon {
    width: 84px;
    height: 84px;
    margin: 0 auto 22px;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 35%, #fdf6e3, #d9c394 70%, #c3ab7c);
    box-shadow: 0 0 40px rgba(217, 195, 148, 0.45), inset -12px -10px 30px rgba(180, 150, 100, 0.5);
}

.hero-kicker { font-size: 15px; letter-spacing: 8px; color: #cfbfa1; margin-bottom: 12px; }

.hero-title {
    font-size: 46px;
    letter-spacing: 14px;
    text-shadow: 0 3px 18px rgba(0,0,0,0.45);
    margin-bottom: 14px;
    padding-left: 14px;
    font-family: var(--kai);
}

.hero-sub { font-size: 16px; color: #cdbda0; letter-spacing: 4px; }

.hero-divider {
    width: 220px;
    height: 1px;
    margin: 26px auto;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
    position: relative;
}

.hero-divider::after {
    content: "❖";
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    background: #35302b;
    color: var(--gold);
    padding: 0 10px;
    font-size: 14px;
}

.hero-quote { font-size: 17px; color: #e6d8bb; letter-spacing: 2px; font-style: italic; font-family: var(--kai); }

/* ---------------- 页面头部（内页） ---------------- */
.page-head {
    text-align: center;
    padding: 54px 24px 40px;
    position: relative;
}

.page-head h1 {
    font-size: 34px;
    letter-spacing: 10px;
    padding-left: 10px;
    position: relative;
    display: inline-block;
    font-family: var(--kai);
}

.page-head h1::before,
.page-head h1::after {
    content: "";
    position: absolute;
    top: 50%;
    width: 44px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gold));
}

.page-head h1::before { right: calc(100% + 20px); }
.page-head h1::after { left: calc(100% + 20px); transform: scaleX(-1); }

.page-head .sub { color: var(--ink-faint); letter-spacing: 4px; margin-top: 10px; font-size: 14px; }

.section-title {
    display: flex;
    align-items: center;
    gap: 14px;
    margin: 40px 0 22px;
    font-size: 24px;
    letter-spacing: 6px;
    color: var(--ink);
    font-family: var(--kai);
}

.section-title::before {
    content: "❖";
    color: var(--cinnabar);
    font-size: 15px;
}

.section-title::after {
    content: "";
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--line), transparent);
}

/* ---------------- 分类栏 ---------------- */
.cat-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    padding: 30px 0 6px;
}

.cat-bar a {
    padding: 5px 16px;
    font-size: 15px;
    letter-spacing: 2px;
    color: var(--ink-soft);
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--paper-light);
    transition: all 0.2s;
}

.cat-bar a:hover { border-color: var(--cinnabar); color: var(--cinnabar); }
.cat-bar a.active { background: var(--cinnabar); border-color: var(--cinnabar); color: #f7ecd9; }

.cat-bar .cnt {
    font-size: 12px;
    margin-left: 4px;
    color: var(--ink-faint);
}

.cat-bar a.active .cnt { color: #e8dcc4; }

/* ---------------- 文章卡片 ---------------- */
.post-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 26px;
    padding-bottom: 40px;
}

.post-card {
    background: linear-gradient(180deg, var(--paper-light), var(--paper));
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 26px 26px 22px;
    position: relative;
    transition: transform 0.25s, box-shadow 0.25s;
    box-shadow: 0 1px 4px var(--shadow);
    display: flex;
    flex-direction: column;
}

.post-card::before {
    content: "";
    position: absolute;
    top: -1px;
    left: 26px;
    right: 26px;
    height: 3px;
    background: linear-gradient(90deg, var(--cinnabar), var(--gold) 60%, transparent);
    opacity: 0.7;
}

.post-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 22px var(--shadow);
}

.post-card:hover::before { opacity: 1; }

.post-cat {
    display: inline-block;
    font-size: 12px;
    letter-spacing: 2px;
    color: var(--cinnabar);
    border: 1px solid rgba(166,58,46,0.4);
    padding: 1px 10px;
    border-radius: 999px;
    margin-bottom: 12px;
    width: fit-content;
    background: rgba(166,58,46,0.05);
}

.post-card h2 { font-size: 21px; letter-spacing: 2px; margin-bottom: 10px; line-height: 1.5; font-family: var(--kai); }
.post-card h2 a { color: var(--ink); }
.post-card h2 a:hover { color: var(--cinnabar); }

.post-excerpt { color: var(--ink-soft); font-size: 15px; flex: 1; margin-bottom: 16px; }

.post-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px dashed var(--line);
    padding-top: 12px;
    color: var(--ink-faint);
    font-size: 13px;
}

.post-meta .author::before { content: "◉ "; color: var(--cinnabar); }
.post-meta .date { letter-spacing: 1px; }
.post-meta .views::before { content: "◉ "; color: var(--bamboo); }

.read-more {
    color: var(--cinnabar);
    font-size: 14px;
    letter-spacing: 2px;
    white-space: nowrap;
}

.read-more::after { content: " →"; }

/* ---------------- 文章详情页 ---------------- */
.article-wrap {
    max-width: 780px;
    margin: 0 auto 60px;
}

.article-head {
    text-align: center;
    padding: 48px 24px 30px;
}

.article-head .cat {
    display: inline-block;
    color: var(--cinnabar);
    font-size: 14px;
    letter-spacing: 4px;
    border-bottom: 1px solid rgba(166,58,46,0.4);
    padding-bottom: 4px;
    margin-bottom: 18px;
}

.article-head h1 { font-size: 32px; letter-spacing: 4px; line-height: 1.5; margin-bottom: 16px; font-family: var(--kai); }

.article-head .meta {
    color: var(--ink-faint);
    font-size: 14px;
    letter-spacing: 2px;
    display: flex;
    justify-content: center;
    gap: 22px;
}

.article-body {
    background: var(--paper-light);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 42px 48px;
    font-size: 17px;
    line-height: 2.1;
    box-shadow: 0 2px 8px var(--shadow);
    position: relative;
}

.article-body::before {
    content: "";
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    border: 1px solid rgba(176,141,79,0.25);
    border-radius: 3px;
    pointer-events: none;
}

.article-body p { margin-bottom: 18px; text-indent: 2em; }
.article-body p:first-child { margin-top: 4px; }

.article-tags {
    margin: 30px 0 0;
    padding-top: 18px;
    border-top: 1px dashed var(--line);
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.article-tags span {
    font-size: 13px;
    color: var(--ink-soft);
    border: 1px solid var(--line);
    padding: 2px 12px;
    border-radius: 999px;
}

/* ---------------- 留言区 ---------------- */
.comments-section { margin-top: 46px; }

.comment-count { color: var(--ink-faint); font-size: 15px; letter-spacing: 2px; }

.comment-form {
    background: var(--paper-light);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 24px 28px;
    margin: 20px 0 30px;
}

.comment-form textarea {
    width: 100%;
    min-height: 110px;
    resize: vertical;
    font-family: var(--serif);
    font-size: 15px;
    line-height: 1.8;
    color: var(--ink);
    background: #fffdf7;
    border: 1px solid var(--line);
    border-radius: 4px;
    padding: 12px 14px;
    outline: none;
    transition: border-color 0.2s;
}

.comment-form textarea:focus { border-color: var(--cinnabar); }
.comment-form .form-foot { display: flex; align-items: center; justify-content: space-between; margin-top: 12px; }
.comment-form .hint { font-size: 13px; color: var(--ink-faint); letter-spacing: 1px; }

.comment-list { list-style: none; }

.comment-item {
    background: var(--paper-light);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 18px 24px;
    margin-bottom: 16px;
}

.comment-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.comment-user {
    display: flex;
    align-items: center;
    gap: 10px;
}

.avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, var(--bamboo), #55684c);
    color: #f2ecdb;
    font-size: 15px;
    flex-shrink: 0;
}

.comment-nick { font-size: 15px; letter-spacing: 1px; color: var(--ink); }
.comment-nick .badge-admin {
    font-size: 11px;
    color: var(--cinnabar);
    border: 1px solid rgba(166,58,46,0.5);
    border-radius: 999px;
    padding: 0 7px;
    margin-left: 6px;
}

.comment-time { font-size: 12px; color: var(--ink-faint); letter-spacing: 1px; }

.comment-content { font-size: 15px; color: var(--ink-soft); line-height: 1.9; }

.empty-tip {
    text-align: center;
    color: var(--ink-faint);
    letter-spacing: 3px;
    padding: 34px 0;
    border: 1px dashed var(--line);
    border-radius: var(--radius);
    background: rgba(253,250,243,0.6);
}

/* ---------------- 表单 ---------------- */
.auth-wrap {
    max-width: 420px;
    margin: 30px auto 80px;
}

.form-card {
    background: var(--paper-light);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 36px 40px;
    box-shadow: 0 3px 14px var(--shadow);
    position: relative;
}

.form-card::before {
    content: "";
    position: absolute;
    top: 8px;
    left: 8px;
    right: 8px;
    bottom: 8px;
    border: 1px solid rgba(176,141,79,0.22);
    border-radius: 3px;
    pointer-events: none;
}

.form-title {
    text-align: center;
    font-size: 26px;
    letter-spacing: 8px;
    padding-left: 8px;
    margin-bottom: 6px;
    font-family: var(--kai);
}

.form-sub {
    text-align: center;
    color: var(--ink-faint);
    font-size: 13px;
    letter-spacing: 3px;
    margin-bottom: 26px;
}

.form-group { margin-bottom: 20px; }

.form-group label {
    display: block;
    font-size: 14px;
    letter-spacing: 2px;
    color: var(--ink-soft);
    margin-bottom: 8px;
}

.form-group label .req { color: var(--cinnabar); margin-left: 4px; }

.form-control {
    width: 100%;
    padding: 11px 14px;
    font-family: var(--serif);
    font-size: 15px;
    color: var(--ink);
    background: #fffdf7;
    border: 1px solid var(--line);
    border-radius: 4px;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
    border-color: var(--cinnabar);
    box-shadow: 0 0 0 3px rgba(166,58,46,0.12);
}

.form-hint { font-size: 12px; color: var(--ink-faint); margin-top: 6px; letter-spacing: 1px; }

.form-error {
    color: var(--cinnabar);
    font-size: 13px;
    letter-spacing: 1px;
    margin-bottom: 14px;
    padding: 8px 12px;
    background: rgba(166,58,46,0.06);
    border-left: 3px solid var(--cinnabar);
    border-radius: 2px;
}

.form-switch {
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
    color: var(--ink-faint);
}

.form-switch a { margin-left: 6px; }

/* ---------------- 关于页 ---------------- */
.about-wrap { max-width: 780px; margin: 0 auto 60px; }

.about-card {
    background: var(--paper-light);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 40px 48px;
    box-shadow: 0 2px 8px var(--shadow);
    position: relative;
}

.about-card::before {
    content: "";
    position: absolute;
    top: 8px;
    left: 8px;
    right: 8px;
    bottom: 8px;
    border: 1px solid rgba(176,141,79,0.22);
    border-radius: 3px;
    pointer-events: none;
}

.about-head {
    display: flex;
    gap: 30px;
    align-items: center;
    margin-bottom: 28px;
}

.about-avatar {
    width: 108px;
    height: 108px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: linear-gradient(145deg, #8a9d7a, #55684c);
    color: #f4eedd;
    font-size: 40px;
    letter-spacing: 4px;
    flex-shrink: 0;
    box-shadow: 0 4px 16px rgba(60,80,40,0.25);
}

.about-name { font-size: 26px; letter-spacing: 6px; margin-bottom: 6px; font-family: var(--kai); }
.about-title { color: var(--cinnabar); font-size: 15px; letter-spacing: 3px; margin-bottom: 8px; }
.about-bio { color: var(--ink-soft); font-size: 14px; letter-spacing: 1px; }

.about-section { margin-top: 30px; }
.about-section h3 {
    font-size: 18px;
    letter-spacing: 4px;
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--kai);
}
.about-section h3::before { content: "◆"; color: var(--bamboo); font-size: 13px; }

.about-section p { font-size: 15px; color: var(--ink-soft); margin-bottom: 12px; text-indent: 2em; }

.trait-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-top: 6px;
}

.trait {
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 18px 20px;
    text-align: center;
    transition: transform 0.2s;
}

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

.trait .trait-icon { color: var(--cinnabar); font-size: 22px; margin-bottom: 8px; }
.trait .trait-name { letter-spacing: 3px; font-size: 15px; }
.trait .trait-desc { font-size: 12px; color: var(--ink-faint); margin-top: 6px; letter-spacing: 1px; }

/* ---------------- 后台管理 ---------------- */
.admin-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 30px;
    padding-bottom: 60px;
}

.admin-side {
    background: var(--paper-light);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 26px;
    align-self: start;
    position: sticky;
    top: 90px;
}

.admin-side h3 {
    font-size: 17px;
    letter-spacing: 3px;
    padding-bottom: 14px;
    border-bottom: 1px dashed var(--line);
    margin-bottom: 14px;
    font-family: var(--kai);
}

.admin-side nav a {
    display: block;
    padding: 10px 12px;
    color: var(--ink-soft);
    font-size: 15px;
    letter-spacing: 2px;
    border-radius: 4px;
    border-left: 3px solid transparent;
    margin-bottom: 4px;
}

.admin-side nav a:hover,
.admin-side nav a.active { background: rgba(166,58,46,0.06); color: var(--cinnabar); border-left-color: var(--cinnabar); }

.admin-main { min-width: 0; }

.admin-panel {
    background: var(--paper-light);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 28px 32px;
    margin-bottom: 26px;
}

.admin-panel h2 {
    font-size: 20px;
    letter-spacing: 4px;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px dashed var(--line);
    font-family: var(--kai);
}

.admin-actions { display: flex; gap: 12px; margin-bottom: 22px; flex-wrap: wrap; align-items: center; justify-content: space-between; }

.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.admin-table th {
    text-align: left;
    color: var(--ink-faint);
    font-weight: normal;
    letter-spacing: 2px;
    font-size: 13px;
    padding: 10px 12px;
    border-bottom: 1px solid var(--line);
}

.admin-table td {
    padding: 12px;
    border-bottom: 1px dashed var(--line);
    vertical-align: middle;
}

.admin-table tr:hover td { background: rgba(166,58,46,0.03); }

.admin-table .cell-title { max-width: 260px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.admin-table .cell-title a { color: var(--ink); }
.admin-table .cell-title a:hover { color: var(--cinnabar); }

.mini-btn {
    display: inline-block;
    padding: 3px 12px;
    font-size: 13px;
    border-radius: 4px;
    border: 1px solid var(--line);
    color: var(--ink-soft);
    background: none;
    cursor: pointer;
    font-family: var(--serif);
    letter-spacing: 1px;
}

.mini-btn:hover { border-color: var(--cinnabar); color: var(--cinnabar); }
.mini-btn.danger:hover { border-color: var(--cinnabar); background: rgba(166,58,46,0.06); color: var(--cinnabar); }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }

/* ---------------- 弹窗 ---------------- */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(40, 32, 24, 0.55);
    backdrop-filter: blur(2px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

.modal-backdrop.show { display: flex; animation: backdrop-in 0.2s ease both; }

@keyframes backdrop-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal {
    background: linear-gradient(180deg, var(--paper-light), var(--paper));
    border: 1px solid var(--line);
    border-top: 3px solid var(--cinnabar);
    border-radius: var(--radius);
    max-width: 420px;
    width: calc(100% - 40px);
    padding: 30px 34px 26px;
    box-shadow: 0 14px 40px rgba(0,0,0,0.3);
    animation: modal-in 0.25s ease both;
    position: relative;
}

@keyframes modal-in {
    from { opacity: 0; transform: scale(0.94) translateY(8px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal .modal-seal {
    width: 46px;
    height: 46px;
    display: grid;
    place-items: center;
    background: var(--cinnabar);
    color: #f7ecd9;
    border-radius: 6px;
    font-size: 17px;
    margin-bottom: 14px;
    box-shadow: inset 0 0 0 2px rgba(247,236,217,0.35);
}

.modal h3 { font-size: 20px; letter-spacing: 4px; margin-bottom: 8px; font-family: var(--kai); }
.modal p { color: var(--ink-faint); font-size: 14px; margin-bottom: 22px; line-height: 1.8; }
.modal .modal-actions { display: flex; gap: 12px; justify-content: flex-end; }

.modal .btn {
    min-width: 84px;
    padding: 8px 18px;
}

.modal .btn-danger { background: var(--cinnabar); color: #f7ecd9; }
.modal .btn-danger:hover { background: var(--cinnabar-deep); color: #fff; }

/* ---------------- 返回顶部 ---------------- */
.to-top {
    position: fixed;
    right: 24px;
    bottom: 28px;
    z-index: 60;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--gold);
    background: linear-gradient(180deg, #4a4036, #35302b);
    color: #e8dcc4;
    font-size: 18px;
    cursor: pointer;
    display: grid;
    place-items: center;
    box-shadow: 0 3px 12px rgba(0,0,0,0.25);
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: opacity 0.25s, transform 0.25s, visibility 0.25s;
    font-family: var(--serif);
}

.to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { background: var(--cinnabar); color: #fff; border-color: var(--cinnabar); }

/* ---------------- 留言高亮 ---------------- */
.comment-item.flash-new { animation: comment-glow 2.4s ease 2; }

@keyframes comment-glow {
    0%, 100% { box-shadow: 0 0 0 0 rgba(111,132,101,0); border-color: var(--line); }
    40% { box-shadow: 0 0 0 4px rgba(111,132,101,0.25); border-color: var(--bamboo); }
}

/* ---------------- 提示条 ---------------- */
.alert {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    border-radius: 4px;
    margin: 18px 0;
    font-size: 14px;
    letter-spacing: 1px;
    border-left: 3px solid;
    position: relative;
    animation: alert-in 0.35s ease both;
    box-shadow: 0 2px 8px var(--shadow);
}

@keyframes alert-in {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.alert.alert-hide {
    animation: alert-out 0.35s ease both;
}

@keyframes alert-out {
    from { opacity: 1; transform: translateY(0); }
    to { opacity: 0; transform: translateY(-10px); max-height: 0; padding-top: 0; padding-bottom: 0; margin-top: 0; margin-bottom: 0; }
}

.alert .alert-icon {
    font-size: 15px;
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: rgba(0,0,0,0.06);
}

.alert .alert-text { flex: 1; }

.alert .alert-close {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 18px;
    line-height: 1;
    color: inherit;
    opacity: 0.55;
    padding: 2px 4px;
    border-radius: 3px;
    font-family: var(--serif);
    transition: opacity 0.2s;
}

.alert .alert-close:hover { opacity: 1; }

.alert-error { background: rgba(166,58,46,0.07); border-color: var(--cinnabar); color: var(--cinnabar-deep); }
.alert-success { background: rgba(111,132,101,0.09); border-color: var(--bamboo); color: #4d5f44; }

/* ---------------- 分页 ---------------- */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    padding: 30px 0 50px;
}

.pagination a,
.pagination span {
    min-width: 38px;
    height: 38px;
    display: grid;
    place-items: center;
    border: 1px solid var(--line);
    border-radius: 4px;
    color: var(--ink-soft);
    font-size: 14px;
    background: var(--paper-light);
    padding: 0 6px;
}

.pagination a:hover { border-color: var(--cinnabar); color: var(--cinnabar); }
.pagination .current { background: var(--cinnabar); color: #f7ecd9; border-color: var(--cinnabar); }

/* ---------------- 页脚 ---------------- */
.site-footer {
    background: linear-gradient(180deg, #2f2a26, #26211e);
    color: #9d9180;
    text-align: center;
    padding: 34px 24px;
    border-top: 3px solid var(--gold);
    margin-top: 20px;
}

.footer-motto { font-size: 14px; letter-spacing: 2px; margin-bottom: 10px; color: #b8a98d; font-family: var(--kai); }
.footer-copy { font-size: 12px; letter-spacing: 2px; }

/* ===== 站内搜索 ===== */
.header-search { display: inline-flex; margin: 0 8px; white-space: nowrap; }
.header-search-input {
    width: 130px;
    padding: 6px 12px;
    font: inherit;
    font-size: 13px;
    color: var(--ink);
    background: rgba(244, 240, 229, 0.9);
    border: 1px solid var(--line);
    border-radius: 20px;
    outline: none;
    transition: width 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.header-search-input:focus {
    width: 190px;
    border-color: var(--cinnabar);
    box-shadow: 0 0 0 2px rgba(178, 34, 34, 0.12);
}
.header-search-input::placeholder { color: #9a8f7d; }
.btn-rss { font-size: 13px; }

.search-bar {
    margin: 0 auto 26px;
    max-width: 560px;
}
.search-form { display: flex; gap: 10px; }
.search-form .form-control { flex: 1; }
.search-hint { margin: 0 0 22px; color: #7a6f5c; }
.search-hint strong { color: var(--cinnabar); }

/* ===== 上一篇 / 下一篇 ===== */
.article-prevnext {
    display: flex;
    gap: 14px;
    margin-top: 34px;
    padding-top: 24px;
    border-top: 1px dashed var(--line);
}
.pn-item {
    flex: 1;
    display: block;
    padding: 14px 18px;
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 6px;
    text-decoration: none;
    transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}
.pn-item:hover { border-color: var(--cinnabar); box-shadow: 0 4px 14px rgba(120, 60, 20, 0.08); transform: translateY(-2px); }
.pn-next { text-align: right; }
.pn-label { display: block; font-size: 12px; color: var(--cinnabar); margin-bottom: 6px; }
.pn-title {
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
    color: var(--ink);
    font-size: 14px;
}
.pn-empty { border-color: transparent; background: transparent; }

/* ===== 404 页 ===== */
.notfound {
    min-height: 72vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 60px 20px;
}
.notfound-num {
    font-family: var(--kai);
    font-size: 120px;
    color: rgba(178, 34, 34, 0.18);
    line-height: 1;
    letter-spacing: 4px;
}
.notfound-title {
    font-family: var(--kai);
    font-size: 42px;
    letter-spacing: 8px;
    color: var(--ink);
    margin: 10px 0 14px;
}
.notfound-sub { color: #8a7f6d; margin: 0 0 30px; }
.notfound-actions { display: flex; gap: 14px; justify-content: center; }

/* ===== 后台分类筛选 ===== */
.admin-actions { display: flex; gap: 12px; margin-bottom: 22px; flex-wrap: wrap; align-items: center; justify-content: space-between; }
.inline-filter .form-control { width: 180px; }

/* ===== 订阅页 ===== */
.subscribe-card { max-width: 640px; margin: 0 auto; }
.subscribe-desc { color: #6b6050; line-height: 2; margin-bottom: 20px; }
.subscribe-link {
    display: flex;
    gap: 12px;
    align-items: center;
    background: var(--paper-light);
    border: 1px dashed var(--line);
    border-radius: 6px;
    padding: 12px 14px;
}
.subscribe-link code {
    flex: 1;
    font-size: 14px;
    color: var(--cinnabar);
    word-break: break-all;
    user-select: all;
}
.subscribe-tip { min-height: 22px; margin: 8px 0 0; font-size: 13px; color: #8a7f6d; }
.subscribe-tip.ok { color: var(--bamboo); }
.subscribe-actions { display: flex; gap: 12px; margin-top: 18px; }
.subscribe-hr { border: none; border-top: 1px dashed var(--line); margin: 26px 0 18px; }
.subscribe-title { font-family: var(--kai); font-size: 20px; letter-spacing: 3px; color: var(--ink); margin-bottom: 12px; }
.subscribe-steps { margin: 0; padding-left: 22px; color: #6b6050; line-height: 2.2; }

/* ---------------- 响应式 ---------------- */
/* 导航栏分档：空间不足时依次收起次要元素，避免导航与按钮重叠 */
@media (max-width: 1280px) {
    .header-search { display: none; }
}

@media (max-width: 1080px) {
    .btn-rss { display: none; }
    .main-nav { gap: 16px; }
    .user-area .btn-ghost { max-width: 90px; overflow: hidden; text-overflow: ellipsis; }
}

@media (max-width: 960px) {
    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #2f2a26;
        flex-direction: column;
        padding: 10px 24px 18px;
        gap: 4px;
        border-bottom: 3px solid var(--cinnabar);
    }

    .main-nav.open { display: flex; }

    .main-nav a { padding: 10px 2px; }

    .nav-toggle { display: block; margin-left: auto; }

    .user-area { display: none; }

    .header-inner { flex-wrap: wrap; }
}

@media (max-width: 860px) {
    .hero-title { font-size: 34px; letter-spacing: 8px; }
    .hero { padding: 70px 24px 64px; }

    .admin-layout { grid-template-columns: 1fr; }
    .admin-side { position: static; }

    .two-col { grid-template-columns: 1fr; }

    .article-body { padding: 30px 26px; }
    .about-card, .form-card { padding: 28px 26px; }

    .about-head { flex-direction: column; text-align: center; gap: 16px; }
    .page-head h1::before, .page-head h1::after { display: none; }
}

@media (max-width: 560px) {
    .brand-name { font-size: 18px; letter-spacing: 4px; }
    .brand-sub { display: none; }
    .hero-title { font-size: 28px; }
    .container { padding: 0 16px; }
    .comment-form { padding: 18px; }
}