/* ==========================================================================
   国风主题 · main.css
   --------------------------------------------------------------------------
   版式基调：宣纸底、墨色宋体、宽留白、细栏线。正文首行缩进两字、首段首字下沉，
   这是让它「像书」而不是「像网页」的关键两处。
   昼夜两套配色只换变量，结构与排版共用一份。
   ========================================================================== */

:root {
    --paper: #f7f4ec;
    --paper-2: #fbf9f3;
    --ink: #1c1a17;
    --ink-2: #4a453c;
    --ink-3: #837a6a;
    --rule: #ddd5c4;
    --rule-soft: #e8e2d4;
    --seal: #9e3b2f;
    --seal-soft: rgba(158, 59, 47, .08);

    --font: "Songti SC", "STSong", "SimSun", "Noto Serif CJK SC",
            "Source Han Serif SC", "Source Han Serif CN", serif;
    --mono: "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, "Courier New", monospace;

    --measure: 44rem;
}

[data-mode="dark"] {
    --paper: #16150f;
    --paper-2: #1c1b14;
    --ink: #e8e0cc;
    --ink-2: #c4bca8;
    --ink-3: #8f887a;
    --rule: #302d24;
    --rule-soft: #26241c;
    --seal: #c4553f;
    --seal-soft: rgba(196, 85, 63, .12);
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: var(--font);
    font-size: 17px;
    line-height: 1.9;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    font-synthesis: none;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color .18s ease;
}

a:hover { color: var(--seal); }

img { max-width: 100%; }

::selection { background: var(--seal-soft); color: var(--ink); }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--rule); border-radius: 6px; border: 3px solid var(--paper); }

/* --------------------------------------------------------------------------
   页头
   -------------------------------------------------------------------------- */

.gf-header {
    border-bottom: 1px solid var(--rule-soft);
    background: var(--paper);
}

.gf-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.2rem;
    max-width: var(--measure);
    margin: 0 auto;
    padding: 1.6rem 1.5rem;
}

.gf-brand {
    display: flex;
    align-items: center;
    gap: .8rem;
    min-width: 0;
}

.gf-seal {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2em;
    height: 2em;
    background: var(--seal);
    color: var(--paper-2);
    font-size: .92rem;
    line-height: 1;
    border-radius: 2px;
    letter-spacing: 0;
}

.gf-brand__text { display: flex; flex-direction: column; min-width: 0; }

.gf-brand__name {
    font-size: 1.08rem;
    font-weight: 600;
    letter-spacing: .06em;
    line-height: 1.5;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.gf-brand__desc {
    font-size: .76rem;
    color: var(--ink-3);
    letter-spacing: .04em;
    line-height: 1.6;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.gf-nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .2rem .85rem;
    font-size: .86rem;
    color: var(--ink-2);
    letter-spacing: .06em;
}

.gf-nav a {
    position: relative;
    padding: .2rem 0;
    white-space: nowrap;
}

.gf-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    right: 100%;
    bottom: 0;
    height: 1px;
    background: var(--seal);
    transition: right .2s ease;
}

.gf-nav a:hover::after { right: 0; }

/* 阅读下拉：对齐 classic 的二级菜单。原生 details，不用脚本、不用动效，
   键盘可展开；宽屏是浮层，窄屏在竖排导航里就地展开。 */
.gf-nav__drop { position: relative; }

.gf-nav__drop > summary {
    display: block;
    position: relative;
    padding: .2rem 0;
    white-space: nowrap;
    cursor: pointer;
    list-style: none;
}

.gf-nav__drop > summary::-webkit-details-marker { display: none; }

.gf-nav__drop > summary::after {
    content: "";
    position: absolute;
    left: 0;
    right: 100%;
    bottom: 0;
    height: 1px;
    background: var(--seal);
    transition: right .2s ease;
}

.gf-nav__drop > summary:hover::after,
.gf-nav__drop[open] > summary::after { right: 0; }

.gf-nav__sub {
    position: absolute;
    top: 100%;
    left: -.8rem;
    z-index: 50;
    display: flex;
    flex-direction: column;
    min-width: 9.5rem;
    padding: .45rem 0;
    border: 1px solid var(--rule);
    background: var(--paper-2);
}

.gf-nav__sub a { padding: .3rem .9rem; font-size: .84rem; }
.gf-nav__sub a::after { display: none; }
.gf-nav__sub a:hover { color: var(--seal); }

.gf-nav-toggle { display: none; }
.gf-nav-btn { display: none; }

/* --------------------------------------------------------------------------
   主体
   -------------------------------------------------------------------------- */

.gf-main {
    max-width: var(--measure);
    margin: 0 auto;
    padding: 0 1.5rem 2rem;
}

/* 卷首 */

.gf-hero {
    position: relative;
    padding: 4.8rem 0 2.8rem;
    text-align: center;
    isolation: isolate;
    /* 月晕与虚线圈都是绝对定位的装饰，不裁掉会让手机端出现横向滚动 */
    overflow: hidden;
}

/* 水墨远山：不铺满屏幕，而是用径向遮罩让它从纸面「渗」出来，
   这样左右不会出现一条生硬的图片边界。静态铺底，不随滚动或指针位移。 */
.gf-hero__bg {
    position: absolute;
    inset: -1.5rem -1rem -1.5rem;
    background: url("/static/themes/guofeng/img/hero-ink.webp") center bottom / cover no-repeat;
    opacity: .52;
    -webkit-mask-image: radial-gradient(ellipse 60% 56% at 50% 46%, #000 26%, rgba(0, 0, 0, .5) 50%, transparent 74%);
    mask-image: radial-gradient(ellipse 60% 56% at 50% 46%, #000 26%, rgba(0, 0, 0, .5) 50%, transparent 74%);
    pointer-events: none;
    z-index: -3;
}

/* 夜里把淡墨提亮，否则在深底上完全看不见。
   这里的关键是把反相后的底色压到接近全黑：否则整张图的矩形范围会在
   深色页面上显出一个方块。亮度压到 .2 之后，screen 混合只剩山脊处微亮。 */
[data-mode="dark"] .gf-hero__bg {
    opacity: .9;
    mix-blend-mode: screen;
    filter: invert(1) grayscale(1) brightness(.2) contrast(1.4);
}

/* 月晕：两层同心圆，外层散得开、内层贴着标题。静态，不呼吸。
   纯文字排版容易显得空，这一层负责把视线拉到站点名上。 */
.gf-hero::before {
    content: "";
    position: absolute;
    top: -9rem;
    left: 50%;
    width: 38rem;
    height: 38rem;
    margin-left: -19rem;
    border-radius: 50%;
    background: radial-gradient(circle,
        rgba(158, 59, 47, .12) 0%,
        rgba(158, 59, 47, .05) 34%,
        rgba(158, 59, 47, .015) 52%,
        rgba(158, 59, 47, 0) 66%);
    pointer-events: none;
    z-index: -2;
}

/* 虚线圈：像一枚淡淡的圆形印章边界，比实线松弛 */
.gf-hero::after {
    content: "";
    position: absolute;
    top: -.6rem;
    left: 50%;
    width: 21rem;
    height: 21rem;
    margin-left: -10.5rem;
    border-radius: 50%;
    border: 1px dashed rgba(158, 59, 47, .16);
    pointer-events: none;
    z-index: -1;
}

[data-mode="dark"] .gf-hero::before {
    background: radial-gradient(circle,
        rgba(196, 85, 63, .2) 0%,
        rgba(196, 85, 63, .07) 34%,
        rgba(196, 85, 63, .02) 52%,
        rgba(196, 85, 63, 0) 66%);
}

[data-mode="dark"] .gf-hero::after {
    border-color: rgba(196, 85, 63, .22);
}

.gf-hero__inner {
    position: relative;
    z-index: 1;
}

.gf-hero__kicker {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .9rem;
    margin: 0 0 1.8rem;
    font-size: .72rem;
    letter-spacing: .42em;
    text-indent: .42em;
    color: var(--ink-3);
}

.gf-hero__kicker::before,
.gf-hero__kicker::after {
    content: "";
    width: 1.8rem;
    height: 1px;
    background: var(--rule);
}

.gf-hero__title {
    margin: 0;
    font-size: 3rem;
    font-weight: 600;
    line-height: 1.42;
    letter-spacing: .16em;
    text-indent: .16em;
}

.gf-hero__desc {
    margin: 1.1rem 0 0;
    font-size: .92rem;
    letter-spacing: .1em;
    color: var(--ink-3);
}

.gf-hero__rule {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .65rem;
    margin: 2.4rem auto 0;
}

.gf-hero__rule::before,
.gf-hero__rule::after {
    content: "";
    width: 3.6rem;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--rule));
}

.gf-hero__rule::after {
    background: linear-gradient(to left, transparent, var(--rule));
}

.gf-hero__rule span {
    width: 5px;
    height: 5px;
    background: var(--seal);
    transform: rotate(45deg);
    box-shadow: 0 0 0 3px var(--paper);
}

/* 公告 */

.gf-notice {
    margin: 1.6rem 0;
    padding: .9rem 1.1rem;
    border: 1px solid var(--rule);
    border-left: 2px solid var(--seal);
    background: var(--seal-soft);
    font-size: .9rem;
    color: var(--ink-2);
    line-height: 1.85;
}

/* --------------------------------------------------------------------------
   文章列表
   -------------------------------------------------------------------------- */

.gf-list { border-top: 1px solid var(--rule); }

.gf-post {
    position: relative;
    display: flex;
    align-items: flex-start;
    gap: 1.3rem;
    padding: 2.1rem 0;
    /* 分隔线右端渐隐，像手工排的栏线 */
    border-bottom: 1px solid transparent;
    background-image: linear-gradient(to right, var(--rule-soft), var(--rule-soft) 74%, transparent);
    background-size: 100% 1px;
    background-position: 0 100%;
    background-repeat: no-repeat;
}

/* 序号右侧一道竖线，形成古籍的「界栏」感 */
.gf-post__side {
    flex: 0 0 2.5rem;
    align-self: stretch;
    padding-top: .42rem;
    padding-right: .95rem;
    border-right: 1px solid var(--rule-soft);
    text-align: right;
}

.gf-post__no {
    font-size: .82rem;
    letter-spacing: .1em;
    color: var(--ink-3);
    font-variant-numeric: tabular-nums;
}

.gf-post__main { flex: 1 1 auto; min-width: 0; }

.gf-post__title {
    margin: 0 0 .55rem;
    font-size: 1.3rem;
    font-weight: 600;
    line-height: 1.55;
    letter-spacing: .015em;
}

.gf-post__title a { color: var(--ink); }
.gf-post__title a:hover { color: var(--seal); }

.gf-post__meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .5rem .85rem;
    margin: 0;
    font-size: .76rem;
    letter-spacing: .06em;
    color: var(--ink-3);
}

.gf-post__cat { color: var(--ink-3); border-bottom: 1px solid transparent; }
.gf-post__cat:hover { color: var(--seal); border-bottom-color: var(--seal); }

.gf-post__stat { color: var(--ink-3); }

.gf-post__desc {
    margin: .7rem 0 0;
    font-size: .95rem;
    line-height: 1.95;
    color: var(--ink-2);
}

.gf-post__cover {
    flex: 0 0 10.4rem;
    width: 10.4rem;
    height: 6.6rem;
    margin: .15rem 0 0;
    overflow: hidden;
    border: 1px solid var(--rule-soft);
}

.gf-post__cover img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: sepia(.16) contrast(.97) brightness(1.02);
}

/* 夜里把白底图压暗一点，否则一块纯白会从深色页面上「跳」出来 */
[data-mode="dark"] .gf-post__cover img {
    filter: sepia(.12) brightness(.82) contrast(.95);
}

.gf-empty {
    padding: 4rem 0;
    text-align: center;
    color: var(--ink-3);
    font-size: .92rem;
}

/* 标记 */

.gf-mark {
    display: inline-block;
    padding: 0 .25em;
    font-size: .72rem;
    line-height: 1.7;
    letter-spacing: .06em;
    color: var(--ink-3);
    border: 1px solid var(--rule);
    border-radius: 1px;
}

.gf-mark--seal {
    color: var(--seal);
    border-color: var(--seal);
}

/* 分页 */

.gf-pager {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.1rem;
    padding: 3rem 0 1rem;
    font-size: .84rem;
    letter-spacing: .06em;
    color: var(--ink-3);
    flex-wrap: wrap;
}

.gf-pager__step { color: var(--ink-2); }
.gf-pager__step.is-disabled { color: var(--ink-3); opacity: .45; cursor: default; }
.gf-pager__step:not(.is-disabled):hover { color: var(--seal); }

.gf-pager__list {
    display: flex;
    align-items: center;
    gap: .25rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.gf-pager__list li { display: block; }

.gf-pager__list a,
.gf-pager__list .is-current {
    display: inline-block;
    min-width: 1.7em;
    padding: .1em .25em;
    text-align: center;
    font-variant-numeric: tabular-nums;
    color: var(--ink-2);
    border-bottom: 1px solid transparent;
}

.gf-pager__list a:hover {
    color: var(--seal);
    border-bottom-color: var(--seal);
}

.gf-pager__list .is-current {
    color: var(--seal);
    border-bottom: 1px solid var(--seal);
}

.gf-pager__list .is-gap {
    padding: 0 .1em;
    color: var(--rule);
    cursor: default;
}

.gf-pager__now { display: none; color: var(--ink-2); }

.gf-pager__total {
    margin-left: .4em;
    color: var(--ink-3);
}

@media (max-width: 600px) {
    .gf-pager {
        gap: .9rem;
        padding-top: 2.4rem;
    }

    /* 窄屏收起页码列表，只留「前页 · 第 N 页 · 后页」，避免换行凌乱 */
    .gf-pager__list { display: none; }
    .gf-pager__now { display: inline; }
}

/* --------------------------------------------------------------------------
   文章页
   -------------------------------------------------------------------------- */

.gf-crumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .45rem;
    padding: 2rem 0 0;
    font-size: .76rem;
    letter-spacing: .06em;
    color: var(--ink-3);
}

.gf-crumb a { color: var(--ink-3); }
.gf-crumb a:hover { color: var(--seal); }

.gf-article__head {
    padding: 2.2rem 0 1.8rem;
    text-align: center;
    border-bottom: 3px double var(--rule);
}

/* 文章封面：宽幅放在标题上方，下缘用细线压住，像册页里的插图 */
.gf-article__cover {
    margin: 2.2rem 0 0;
    overflow: hidden;
    border: 1px solid var(--rule-soft);
    background: var(--paper-2);
}

.gf-article__cover img {
    display: block;
    width: 100%;
    height: auto;
    max-height: 24rem;
    object-fit: cover;
    filter: sepia(.12) contrast(.98);
}

[data-mode="dark"] .gf-article__cover img {
    filter: sepia(.1) brightness(.82) contrast(.95);
}

.gf-article__title {
    margin: 0;
    font-size: 1.95rem;
    font-weight: 600;
    line-height: 1.55;
    letter-spacing: .03em;
}

.gf-article__meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: .5rem .7rem;
    margin: 1.1rem 0 0;
    font-size: .76rem;
    letter-spacing: .06em;
    color: var(--ink-3);
}

.gf-article__meta a { color: var(--ink-3); }
.gf-article__meta a:hover { color: var(--seal); }
.gf-article__dot { color: var(--rule); }
.gf-article__meta .gf-mark { margin-left: .4rem; }

/* 目次：桌面默认展开，手机默认收起（点标题展开）。
   折叠用 <details>，不依赖 JS；宽度够时由脚本把 open 打开。 */

.gf-toc {
    margin-top: 1.8rem;
    border-top: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
}

.gf-toc__box { padding: 1rem 0; }

.gf-toc__title {
    display: flex;
    align-items: center;
    gap: .8rem;
    font-size: .8rem;
    letter-spacing: .18em;
    color: var(--ink-3);
    cursor: pointer;
    list-style: none;
}

.gf-toc__title::-webkit-details-marker { display: none; }

.gf-toc__title::after {
    content: "展开";
    margin-left: auto;
    font-size: .72rem;
    letter-spacing: .1em;
    color: var(--ink-3);
}

.gf-toc__box[open] .gf-toc__title::after { content: "收起"; }

.gf-toc__count { color: var(--rule); font-size: .72rem; letter-spacing: .06em; }

.gf-toc__list {
    margin: 1rem 0 .2rem;
    padding: 0 0 0 1.1em;
    list-style: none;
}

.gf-toc__item {
    margin: .4rem 0;
    font-size: .92rem;
    line-height: 1.8;
    position: relative;
}

.gf-toc__item::before {
    content: "";
    position: absolute;
    left: -.9em;
    top: .85em;
    width: 4px;
    height: 1px;
    background: var(--rule);
}

.gf-toc__item--h3 {
    padding-left: 1.1em;
    font-size: .88rem;
    color: var(--ink-2);
}

.gf-toc__item a {
    color: var(--ink-2);
    border-bottom: 1px solid transparent;
    transition: color .3s ease;
}

.gf-toc__item a:hover {
    color: var(--seal);
    border-bottom-color: var(--seal);
}

/* 正文滚到哪一节，目次里那一行就点亮：
   短横线伸长并转为朱砂，字也跟着变色。 */
.gf-toc__item::before {
    transition: width .35s cubic-bezier(.22, .61, .36, 1), background .35s ease;
}

.gf-toc__item.is-current::before {
    width: 10px;
    background: var(--seal);
}

.gf-toc__item.is-current a { color: var(--seal); }

/* 点击目录跳转时留一点顶部余量 */
.gf-article__body h2,
.gf-article__body h3 {
    scroll-margin-top: 2rem;
}

/* 原先宽屏把目次 fixed 到右侧页边，像古籍眉批。加了站点侧栏之后右侧
   已经被占满，再悬浮就会和「关于我」叠在一起，所以统一回到正文里。
   展开/收起仍由 details + app.js 管，脚本在 >=861px 时默认展开。 */
@media (min-width: 1180px) {
    .gf-toc {
        position: static;
        width: auto;
        max-height: none;
        overflow: visible;
    }
}

/* 正文 */

.gf-article__body {
    padding-top: 2rem;
    font-size: 1.06rem;
    line-height: 2.05;
    color: var(--ink);
    word-break: break-word;
}

.gf-article__body p {
    margin: 0 0 1.05em;
    text-indent: 2em;
}

/* 首段首字下沉：这是「像书」最直接的信号 */
.gf-article__body > p:first-of-type {
    text-indent: 0;
}

.gf-article__body > p:first-of-type::first-letter {
    float: left;
    margin: .05em .18em 0 0;
    font-size: 2.9em;
    line-height: .95;
    color: var(--seal);
}

.gf-article__body h1,
.gf-article__body h2,
.gf-article__body h3,
.gf-article__body h4 {
    font-weight: 600;
    line-height: 1.55;
    letter-spacing: .04em;
    text-indent: 0;
}

.gf-article__body h2 {
    position: relative;
    margin: 2.6em 0 1em;
    padding-left: .95em;
    font-size: 1.24rem;
}

.gf-article__body h2::before {
    content: "";
    position: absolute;
    left: 0;
    top: .5em;
    width: 3px;
    height: .95em;
    background: var(--seal);
}

.gf-article__body h3 {
    margin: 2em 0 .8em;
    font-size: 1.08rem;
}

.gf-article__body h4 {
    margin: 1.8em 0 .6em;
    font-size: 1rem;
    color: var(--ink-2);
}

.gf-article__body a {
    color: var(--seal);
    border-bottom: 1px solid var(--seal-soft);
    text-indent: 0;
}

.gf-article__body a:hover { border-bottom-color: var(--seal); }

.gf-article__body ul,
.gf-article__body ol {
    margin: 0 0 1.05em;
    padding-left: 1.6em;
    text-indent: 0;
}

.gf-article__body li { margin: .3em 0; }
.gf-article__body li::marker { color: var(--seal); }

.gf-article__body blockquote {
    margin: 1.8em 0;
    padding: .3em 1.2em;
    border-left: 2px solid var(--rule);
    background: var(--paper-2);
    color: var(--ink-2);
    font-size: 1rem;
}

.gf-article__body blockquote p { text-indent: 0; }
.gf-article__body blockquote p:last-child { margin-bottom: 0; }

.gf-article__body img {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 1.8em auto;
    padding: 4px;
    border: 1px solid var(--rule-soft);
    background: var(--paper-2);
}

.gf-article__body hr {
    width: 40%;
    margin: 3em auto;
    border: 0;
    border-top: 1px solid var(--rule);
}

.gf-article__body table {
    width: 100%;
    margin: 1.8em 0;
    font-size: .92rem;
    border-collapse: collapse;
}

.gf-article__body th,
.gf-article__body td {
    padding: .5em .7em;
    border: 1px solid var(--rule);
    text-align: left;
}

.gf-article__body th {
    background: var(--paper-2);
    font-weight: 600;
}

.gf-article__body code,
.gf-article__body kbd {
    font-family: var(--mono);
    font-size: .86em;
    padding: .1em .35em;
    background: var(--paper-2);
    border: 1px solid var(--rule-soft);
    border-radius: 2px;
}

.gf-article__body pre {
    margin: 1.6em 0;
    padding: 1rem 1.1rem;
    overflow: auto;
    background: var(--paper-2);
    border: 1px solid var(--rule-soft);
    border-left: 2px solid var(--rule);
    font-size: .86rem;
    line-height: 1.8;
}

.gf-article__body pre code {
    padding: 0;
    background: none;
    border: 0;
    font-size: .86rem;
}

/* 代码高亮：只留三档墨色，不引入彩色主题 */
.hljs-comment, .hljs-quote { color: var(--ink-3); font-style: italic; }
.hljs-keyword, .hljs-selector-tag, .hljs-built_in { color: var(--seal); }
.hljs-string, .hljs-attr { color: #6b7f4a; }
.hljs-number, .hljs-literal { color: #8a6b3a; }
.hljs-title, .hljs-section { color: #3f5f7a; }
[data-mode="dark"] .hljs-string, [data-mode="dark"] .hljs-attr { color: #9aae78; }
[data-mode="dark"] .hljs-number, [data-mode="dark"] .hljs-literal { color: #c9a469; }
[data-mode="dark"] .hljs-title, [data-mode="dark"] .hljs-section { color: #84a7c4; }

/* 文末 */

.gf-article__foot {
    margin-top: 3rem;
    padding-top: 1.6rem;
    border-top: 1px solid var(--rule);
}

.gf-article__stale {
    margin: 0 0 1.2rem;
    font-size: .84rem;
    color: var(--ink-3);
    text-indent: 0;
}

.gf-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .5rem;
    margin-bottom: 1.2rem;
}

.gf-tags__label {
    font-size: .78rem;
    letter-spacing: .2em;
    color: var(--ink-3);
    margin-right: .2rem;
}

.gf-seal-tag {
    display: inline-block;
    padding: .08em .55em;
    font-size: .8rem;
    letter-spacing: .08em;
    color: var(--seal);
    border: 1px solid var(--seal);
    border-radius: 1px;
    line-height: 1.8;
}

.gf-seal-tag:hover {
    background: var(--seal);
    color: var(--paper-2);
}

.gf-article__source {
    margin: 0;
    font-size: .82rem;
    color: var(--ink-3);
    text-indent: 0;
}

/* 上下篇 */

.gf-adjacent {
    display: flex;
    gap: 1px;
    margin-top: 3.5rem;
    background: var(--rule);
    border: 1px solid var(--rule);
}

.gf-adjacent__item {
    flex: 1 1 0;
    min-width: 0;
    padding: 1.2rem 1.3rem;
    background: var(--paper);
    display: flex;
    flex-direction: column;
    gap: .35rem;
}

.gf-adjacent__item--next { text-align: right; }

.gf-adjacent__item.is-empty { color: var(--ink-3); }

.gf-adjacent__dir {
    font-size: .74rem;
    letter-spacing: .12em;
    color: var(--ink-3);
}

.gf-adjacent__title {
    font-size: .95rem;
    line-height: 1.6;
    color: var(--ink-2);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.gf-adjacent__item:hover .gf-adjacent__title { color: var(--seal); }

/* --------------------------------------------------------------------------
   评论
   -------------------------------------------------------------------------- */

.gf-comment { margin-top: 4rem; }

.gf-section__title {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 0 0 2rem;
    font-size: .8rem;
    font-weight: 500;
    letter-spacing: .3em;
    color: var(--ink-3);
    text-indent: 0;
}

.gf-section__title::before,
.gf-section__title::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--rule);
}

.gf-section__title span { white-space: nowrap; }

.gf-comment__form {
    padding: 1.4rem;
    border: 1px solid var(--rule-soft);
    background: var(--paper-2);
}

.gf-comment__row {
    display: flex;
    flex-wrap: wrap;
    gap: .7rem;
    margin-bottom: .7rem;
}

.gf-comment__row input {
    flex: 1 1 8rem;
    min-width: 0;
}

.gf-comment__form input,
.gf-comment__form textarea {
    width: 100%;
    padding: .55rem .7rem;
    font-family: var(--font);
    font-size: .92rem;
    line-height: 1.8;
    color: var(--ink);
    background: var(--paper);
    border: 1px solid var(--rule);
    border-radius: 1px;
    outline: none;
    transition: border-color .18s ease;
}

.gf-comment__form input:focus,
.gf-comment__form textarea:focus { border-color: var(--seal); }

.gf-comment__form textarea { resize: vertical; min-height: 6rem; }

.gf-comment__form input::placeholder,
.gf-comment__form textarea::placeholder { color: var(--ink-3); }

.gf-comment__actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-top: .8rem;
}

.gf-comment__hint {
    font-size: .8rem;
    color: var(--ink-3);
}

.gf-comment__form button {
    padding: .45rem 1.6rem;
    font-family: var(--font);
    font-size: .88rem;
    letter-spacing: .2em;
    text-indent: .2em;
    color: var(--paper-2);
    background: var(--ink);
    border: 1px solid var(--ink);
    border-radius: 1px;
    cursor: pointer;
    transition: background .18s ease, border-color .18s ease;
}

.gf-comment__form button:hover:not(:disabled) {
    background: var(--seal);
    border-color: var(--seal);
}

.gf-comment__form button:disabled { opacity: .55; cursor: default; }

.gf-comment__list { margin-top: 2.6rem; }

.gf-comment__item {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--rule-soft);
    /* 引用块里的 @昵称 跳回来时别贴着视口上沿 */
    scroll-margin-top: 1.5rem;
}

.gf-comment__head {
    display: flex;
    align-items: center;
    gap: .6rem;
    margin-bottom: .6rem;
}

.gf-comment__avatar {
    width: 1.9rem;
    height: 1.9rem;
    object-fit: cover;
    border: 1px solid var(--rule);
}

.gf-comment__name {
    font-size: .88rem;
    color: var(--ink-2);
    letter-spacing: .04em;
}

.gf-comment__time {
    margin-left: auto;
    font-size: .74rem;
    color: var(--ink-3);
    letter-spacing: .04em;
}

.gf-comment__body { padding-left: 2.5rem; }

.gf-comment__text {
    margin: 0;
    font-size: .95rem;
    line-height: 1.95;
    color: var(--ink);
    word-break: break-word;
}

.gf-comment__text p { margin: 0 0 .55em; text-indent: 0; }
.gf-comment__text p:last-child { margin-bottom: 0; }
.gf-comment__text a { color: var(--seal); border-bottom: 1px solid var(--seal-soft); }
.gf-comment__text code {
    font-family: var(--mono);
    font-size: .88em;
    padding: .08em .3em;
    background: var(--paper-2);
    border: 1px solid var(--rule-soft);
}

.gf-comment__quote {
    margin: 0 0 .6rem;
    padding: .5rem .8rem;
    font-size: .84rem;
    line-height: 1.8;
    color: var(--ink-3);
    background: var(--paper-2);
    border-left: 2px solid var(--rule);
}

.gf-comment__empty,
.gf-comment__loading {
    padding: 2rem 0;
    font-size: .86rem;
    color: var(--ink-3);
    text-align: center;
}

/* --------------------------------------------------------------------------
   独立页面（归档 / 友链 / 留言板 / 关于 / 免责）
   -------------------------------------------------------------------------- */

.gf-page {
    padding-bottom: 2rem;
}

.gf-page__head {
    padding: 2.2rem 0 1.8rem;
    margin-bottom: 2.4rem;
    text-align: center;
    border-bottom: 3px double var(--rule);
}

.gf-page__title {
    margin: 0;
    font-size: 1.85rem;
    font-weight: 600;
    line-height: 1.5;
    letter-spacing: .08em;
}

.gf-page__desc {
    margin: .8rem 0 0;
    font-size: .86rem;
    letter-spacing: .06em;
    color: var(--ink-3);
}

.gf-page__body {
    font-size: 1rem;
    line-height: 2;
    color: var(--ink-2);
}

.gf-prose p {
    margin: 0 0 1.05em;
    text-indent: 2em;
}

.gf-prose p:first-child { text-indent: 2em; }

.gf-prose a {
    color: var(--seal);
    border-bottom: 1px solid var(--seal-soft);
}

.gf-prose a:hover { border-bottom-color: var(--seal); }

/* 关于页的字段表 */

.gf-facts {
    display: grid;
    grid-template-columns: 5rem 1fr;
    gap: .55rem 1rem;
    margin: 2rem 0 0;
    padding: 1.4rem 0 0;
    border-top: 1px solid var(--rule);
    font-size: .9rem;
}

.gf-facts dt {
    color: var(--ink-3);
    letter-spacing: .14em;
}

.gf-facts dd {
    margin: 0;
    color: var(--ink-2);
    word-break: break-all;
}

/* 条款列表：用「一、」这种中文序号 */

.gf-clauses {
    counter-reset: clause;
    margin: 0;
    padding: 0;
    list-style: none;
}

.gf-clauses li {
    counter-increment: clause;
    position: relative;
    margin: 0 0 .9em;
    padding-left: 2.1em;
    line-height: 2;
}

.gf-clauses li::before {
    content: counter(clause) "、";
    position: absolute;
    left: 0;
    color: var(--seal);
}

/* 归档：按年折叠，年里按月分组，日作为左侧小序号 */

.gf-year {
    border-bottom: 1px solid var(--rule);
}

.gf-year__title {
    display: flex;
    align-items: baseline;
    gap: .8rem;
    padding: 1.3rem 0;
    cursor: pointer;
    list-style: none;
}

.gf-year__title::-webkit-details-marker { display: none; }

.gf-year__name {
    font-size: 1.35rem;
    font-weight: 600;
    letter-spacing: .1em;
    color: var(--ink);
}

.gf-year__title::after {
    content: "展开";
    margin-left: auto;
    font-size: .72rem;
    letter-spacing: .1em;
    color: var(--ink-3);
}

.gf-year[open] .gf-year__title::after { content: "收起"; }

.gf-month { padding-bottom: 1rem; }

.gf-month__title {
    margin: .6rem 0 .5rem;
    font-size: .78rem;
    font-weight: 500;
    letter-spacing: .22em;
    color: var(--ink-3);
}

.gf-day {
    display: flex;
    align-items: flex-start;
    gap: .85rem;
    padding: .2rem 0;
}

.gf-day__no {
    flex: 0 0 1.6rem;
    padding-top: .32rem;
    text-align: right;
    font-size: .8rem;
    color: var(--ink-2);
    font-variant-numeric: tabular-nums;
    letter-spacing: .02em;
}

.gf-year__title { padding: 1.05rem 0; }

.gf-day__list {
    flex: 1 1 auto;
    min-width: 0;
    margin: 0;
    padding: 0;
    list-style: none;
}

.gf-day__list li { padding: .3rem 0; }

.gf-day__list a {
    display: inline-block;
    font-size: .95rem;
    line-height: 1.7;
    color: var(--ink-2);
    border-bottom: 1px solid transparent;
}

.gf-day__list a:hover {
    color: var(--seal);
    border-bottom-color: var(--seal-soft);
}

/* 友链 */

.gf-links {
    display: grid;
    /* minmax(0,1fr) 而不是 1fr：1fr 的下限是内容宽度，一条长描述就能把整行撑出屏幕 */
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: .9rem;
    margin: 0 0 2.4rem;
    padding: 0;
    list-style: none;
}

/* 用独立边框而不是「拼缝」背景：条目为奇数时，空格子不会露出一块底色 */
.gf-links__item {
    min-width: 0;
    border: 1px solid var(--rule-soft);
    background: var(--paper);
}

.gf-links__item > a {
    display: flex;
    align-items: center;
    gap: .85rem;
    height: 100%;
    padding: 1rem 1.1rem;
}

.gf-links__favicon {
    flex: 0 0 auto;
    width: 1.75rem;
    height: 1.75rem;
    object-fit: cover;
    border: 1px solid var(--rule-soft);
    background: var(--paper-2);
}

.gf-links__text { min-width: 0; }

.gf-links__name {
    display: block;
    font-size: .95rem;
    letter-spacing: .03em;
    color: var(--ink);
}

.gf-links__desc {
    display: block;
    margin-top: .15rem;
    font-size: .76rem;
    color: var(--ink-3);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.gf-links__item > a:hover .gf-links__name { color: var(--seal); }

/* 友链申请 */

.gf-apply { margin-top: 2.6rem; }

.gf-apply__intro {
    margin: 0 0 1.2rem;
    font-size: .9rem;
    line-height: 1.95;
    color: var(--ink-2);
}

.gf-apply__intro code {
    font-family: var(--mono);
    font-size: .84em;
    padding: .12em .35em;
    background: var(--paper-2);
    border: 1px solid var(--rule-soft);
    word-break: break-all;
}

.gf-apply__form {
    display: block;
}

.gf-apply__form > input[type="text"] {
    margin-bottom: .7rem;
}

/* 取链记录 */

.gf-offline {
    margin-top: 2.4rem;
    border-top: 1px solid var(--rule);
}

.gf-offline__title {
    padding: 1.1rem 0;
    font-size: .8rem;
    letter-spacing: .12em;
    color: var(--ink-3);
    cursor: pointer;
    list-style: none;
}

.gf-offline__title::-webkit-details-marker { display: none; }

.gf-offline__list {
    margin: 0;
    padding: 0 0 1rem;
    list-style: none;
    font-size: .84rem;
}

.gf-offline__list li {
    display: flex;
    flex-wrap: wrap;
    gap: .6rem 1rem;
    padding: .6rem 0;
    border-bottom: 1px solid var(--rule-soft);
    color: var(--ink-3);
}

.gf-offline__name { color: var(--ink-2); }
.gf-offline__remark { flex: 1 1 auto; }

/* 错误页 */

.gf-error {
    max-width: 30rem;
    margin: 0 auto;
    padding: 5rem 0 4.5rem;
    text-align: center;
}

.gf-error__code {
    margin: 0 0 1.5rem;
    font-size: 4.2rem;
    line-height: 1;
    letter-spacing: .12em;
    color: var(--rule);
    font-variant-numeric: tabular-nums;
}

.gf-error__title {
    margin: 0 0 1rem;
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: .16em;
}

.gf-error__desc {
    margin: 0 0 2.2rem;
    font-size: .94rem;
    line-height: 1.95;
    color: var(--ink-3);
}

.gf-error__actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .8rem;
    font-size: .86rem;
    letter-spacing: .06em;
}

.gf-error__actions a {
    color: var(--seal);
    border-bottom: 1px solid transparent;
}

.gf-error__actions a:hover { border-bottom-color: var(--seal); }

.gf-error__sep { color: var(--rule); }

/* 站长推荐 */

.gf-recommend {
    counter-reset: rec;
    margin: 0;
    padding: 0;
    list-style: none;
    border-top: 1px solid var(--rule);
}

.gf-recommend__item {
    counter-increment: rec;
    position: relative;
    display: flex;
    align-items: baseline;
    gap: 1rem;
    padding: .9rem 0 .9rem 2.2rem;
    border-bottom: 1px solid var(--rule-soft);
}

.gf-recommend__item::before {
    content: counter(rec, decimal-leading-zero);
    position: absolute;
    left: 0;
    font-size: .76rem;
    color: var(--ink-3);
    font-variant-numeric: tabular-nums;
}

.gf-recommend__title {
    flex: 1 1 auto;
    min-width: 0;
    font-size: 1rem;
    line-height: 1.7;
    color: var(--ink-2);
}

.gf-recommend__title:hover { color: var(--seal); }

.gf-recommend__date {
    flex: 0 0 auto;
    font-size: .76rem;
    color: var(--ink-3);
    font-variant-numeric: tabular-nums;
}

/* 更新记录 */

.gf-log { border-top: 1px solid var(--rule); }

.gf-log__item { border-bottom: 1px solid var(--rule-soft); }

.gf-log__head {
    display: flex;
    align-items: baseline;
    gap: .8rem;
    padding: 1.05rem 0;
    cursor: pointer;
    list-style: none;
}

.gf-log__head::-webkit-details-marker { display: none; }

.gf-log__date {
    font-size: .92rem;
    letter-spacing: .04em;
    color: var(--ink-2);
}

.gf-log__ver {
    font-size: .72rem;
    line-height: 1.7;
    padding: 0 .35em;
    color: var(--seal);
    border: 1px solid var(--seal);
    border-radius: 1px;
}

.gf-log__body {
    padding: 0 0 1.2rem;
    font-size: .94rem;
    line-height: 1.9;
    color: var(--ink-2);
}

/* 书架 */

.gf-books {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(132px, 1fr));
    gap: 2rem 1.3rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.gf-book > a { display: block; }

.gf-book__cover {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 0 .7rem;
    aspect-ratio: 2 / 3;
    overflow: hidden;
    background: var(--paper-2);
    border: 1px solid var(--rule-soft);
}

.gf-book__cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: sepia(.1) contrast(.98);
}

.gf-book__cover.is-empty { background: var(--paper-2); }

/* 封面加载失败时退化成书名首字，比留着破图图标体面 */
.gf-book__cover[data-initial]::after {
    content: attr(data-initial);
    font-size: 1.8rem;
    line-height: 1;
    color: var(--rule);
}

.gf-book__placeholder {
    font-size: 2rem;
    color: var(--rule);
}

.gf-book__name {
    margin: 0;
    font-size: .92rem;
    font-weight: 500;
    line-height: 1.5;
    color: var(--ink);
}

.gf-book > a:hover .gf-book__name { color: var(--seal); }

.gf-book__author {
    margin: .2rem 0 0;
    font-size: .76rem;
    color: var(--ink-3);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.gf-book__meta {
    display: flex;
    align-items: center;
    gap: .5rem;
    margin: .35rem 0 0;
    font-size: .72rem;
    color: var(--ink-3);
}

.gf-book__score { color: var(--seal); }

/* 阅读页 */

.gf-read__stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    margin: 0 0 2.8rem;
    background: var(--rule-soft);
    border: 1px solid var(--rule-soft);
}

.gf-read__stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .25rem;
    padding: 1.1rem .4rem;
    background: var(--paper);
}

.gf-read__stat em {
    font-style: normal;
    font-size: 1.45rem;
    font-weight: 600;
    line-height: 1.3;
    color: var(--seal);
    font-variant-numeric: tabular-nums;
}

.gf-read__stat span {
    font-size: .74rem;
    letter-spacing: .16em;
    color: var(--ink-3);
}

.gf-read__group { margin-bottom: 2.8rem; }

/* 年度页的子书单：一个分类一个小标题 */
.gf-read__sub { margin: 2.6rem 0 0; }

.gf-read__subtitle {
    display: flex;
    align-items: center;
    gap: .8rem;
    margin: 0 0 1.2rem;
    font-size: .82rem;
    font-weight: 500;
    letter-spacing: .18em;
    color: var(--ink-3);
}

.gf-read__subtitle::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--rule-soft);
}

.gf-read__loading {
    grid-column: 1 / -1;
    padding: 1.6rem 0;
    text-align: center;
    font-size: .86rem;
    color: var(--ink-3);
    list-style: none;
}

.gf-read__more {
    margin: 1.4rem 0 0;
    font-size: .84rem;
    color: var(--ink-3);
}

.gf-read__more a {
    color: var(--seal);
    border-bottom: 1px solid var(--seal-soft);
}

/* 书籍详情 */

.gf-bookdetail {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    padding: 2.4rem 0 1rem;
}

.gf-bookdetail__cover {
    flex: 0 0 148px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    aspect-ratio: 2 / 3;
    overflow: hidden;
    background: var(--paper-2);
    border: 1px solid var(--rule-soft);
}

.gf-bookdetail__cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.gf-bookdetail__cover[data-initial]::after {
    content: attr(data-initial);
    font-size: 2.4rem;
    line-height: 1;
    color: var(--rule);
}

.gf-bookdetail__meta {
    flex: 1 1 auto;
    min-width: 0;
}

.gf-bookdetail__title {
    margin: 0;
    font-size: 1.65rem;
    font-weight: 600;
    line-height: 1.45;
    letter-spacing: .03em;
}

.gf-bookdetail__sub {
    margin: .5rem 0 0;
    font-size: .9rem;
    color: var(--ink-3);
}

.gf-bookdetail__meta .gf-facts {
    margin-top: 1.5rem;
    padding-top: 1.1rem;
    border-top: 1px solid var(--rule);
    font-size: .86rem;
}

.gf-bookdetail__score { color: var(--seal); }

.gf-bookdetail__section { margin-top: 2.6rem; }

/* --------------------------------------------------------------------------
   交互：只保留有实际用途的部分，不加入场 / 离场动效
   -------------------------------------------------------------------------- */

/* 目录锚点与回到卷首都走平滑滚动；系统开启「减少动态效果」时退回瞬间跳转 */
html { scroll-behavior: smooth; }

/* 回到卷首：滚过一屏才出现。纯显示 / 隐藏，不做淡入、位移或发光。
   竖排两字是国风里的一枚小签，颜色全部走变量，昼夜自动适配。 */
.gf-top {
    position: fixed;
    right: 2rem;
    bottom: 2.4rem;
    z-index: 60;
    display: none;
    align-items: center;
    justify-content: center;
    width: 2.6rem;
    height: 5.4rem;
    border: 1px solid var(--rule);
    background: var(--paper);
    color: var(--ink-3);
    font-size: .78rem;
    letter-spacing: .3em;
    text-indent: .3em;
    writing-mode: vertical-rl;
    text-orientation: upright;
}

.gf-top.is-visible { display: flex; }
.gf-top:hover { color: var(--seal); border-color: var(--seal); }

@media (max-width: 600px) {
    .gf-top {
        right: .8rem;
        bottom: 1.2rem;
        width: 2.2rem;
        height: 4.4rem;
        font-size: .7rem;
    }
}

/* 阅读进度条：只在文章页出现，随滚动增长 */
.gf-progress {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 90;
    width: 0;
    height: 2px;
    background: var(--seal);
    opacity: 0;
    transition: width .12s linear, opacity .3s ease;
}

.gf-progress.is-active { opacity: 1; }

/* 页脚上沿一道云纹，替掉生硬的双线 */
.gf-footer {
    position: relative;
    border-top: 0;
}

.gf-footer::before {
    content: "";
    display: block;
    height: 8px;
    margin-bottom: 1.2rem;
    background-color: var(--rule);
    opacity: .55;
    -webkit-mask-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='24' height='8'><path d='M0 4c3-4 6-4 9 0s6 4 9 0' fill='none' stroke='%23fff' stroke-width='1'/></svg>");
    mask-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='24' height='8'><path d='M0 4c3-4 6-4 9 0s6 4 9 0' fill='none' stroke='%23fff' stroke-width='1'/></svg>");
    -webkit-mask-repeat: repeat-x;
    mask-repeat: repeat-x;
    -webkit-mask-size: 24px 8px;
    mask-size: 24px 8px;
}

/* --------------------------------------------------------------------------
   页脚
   -------------------------------------------------------------------------- */

.gf-footer {
    margin-top: 5rem;
    border-top: 3px double var(--rule);
    background: var(--paper);
}

.gf-footer__inner {
    max-width: var(--measure);
    margin: 0 auto;
    padding: 1.8rem 1.5rem 2.6rem;
    font-size: .78rem;
    letter-spacing: .04em;
    color: var(--ink-3);
}

.gf-switch {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .4rem 1rem;
    padding-bottom: 1.3rem;
    margin-bottom: 1.3rem;
    border-bottom: 1px solid var(--rule-soft);
}

.gf-switch__label { letter-spacing: .2em; color: var(--ink-3); }

.gf-switch__item { color: var(--ink-2); border-bottom: 1px solid transparent; }
.gf-switch__item:hover { color: var(--seal); }
.gf-switch__item.is-active { color: var(--seal); border-bottom-color: var(--seal); }

.gf-switch__sep { color: var(--rule); }

.gf-footer__links {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem 1rem;
    margin-bottom: 1rem;
}

.gf-footer__label { letter-spacing: .2em; color: var(--ink-3); }

.gf-footer__copy {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem 1.2rem;
}

/* --------------------------------------------------------------------------
   响应式
   -------------------------------------------------------------------------- */

@media (max-width: 820px) {
    /* 竖排菜单要换到第二行，父级必须允许换行；否则 width:100% 的 nav
       会被挤在品牌右侧，把品牌压到下面去。 */
    .gf-header__inner {
        padding: 1.1rem 1.2rem;
        flex-wrap: wrap;
        row-gap: .5rem;
    }

    .gf-nav-btn {
        display: flex;
        flex-direction: column;
        justify-content: center;
        gap: 4px;
        width: 2rem;
        height: 2rem;
        cursor: pointer;
    }

    .gf-nav-btn span {
        display: block;
        height: 1px;
        background: var(--ink-2);
    }

    .gf-nav {
        display: none;
        flex-direction: column;
        align-items: flex-start;
        gap: .2rem;
        width: 100%;
        padding-top: .6rem;
        order: 3;
    }

    .gf-nav-toggle:checked ~ .gf-nav { display: flex; }

    .gf-nav a { padding: .45rem 0; font-size: .95rem; }

    /* 竖排导航里，阅读子项就地展开，不做浮层 */
    .gf-nav__drop { width: 100%; }
    /* inline-block 让展开态的下划线只跟文字同宽，不拉成一条通栏红线 */
    .gf-nav__drop > summary { display: inline-block; padding: .45rem 0; font-size: .95rem; }
    .gf-nav__sub {
        position: static;
        min-width: 0;
        padding: 0 0 .3rem .9rem;
        border: 0;
        background: none;
    }
    .gf-nav__sub a { padding: .3rem 0; font-size: .9rem; }

    .gf-main { padding: 0 1.2rem 1rem; }

    .gf-hero { padding: 3rem 0 2rem; }
    .gf-hero__title { font-size: 1.95rem; }

    /* 手机上月晕与虚线圈按比例缩小，否则几乎占满一屏 */
    .gf-hero::before {
        top: -5rem;
        width: 24rem;
        height: 24rem;
        margin-left: -12rem;
    }

    .gf-hero::after {
        top: -.2rem;
        width: 14rem;
        height: 14rem;
        margin-left: -7rem;
    }

    .gf-post { gap: .9rem; padding: 1.7rem 0; }
    .gf-post__side { display: none; }
    .gf-post__cover { flex-basis: 5.6rem; width: 5.6rem; height: 3.8rem; }
    .gf-post__title { font-size: 1.14rem; }

    .gf-article__title { font-size: 1.45rem; }
    .gf-article__body { font-size: 1.02rem; line-height: 1.95; }
    .gf-article__body > p:first-of-type::first-letter { font-size: 2.6em; }

    .gf-adjacent { flex-direction: column; }
    .gf-adjacent__item--next { text-align: left; }

    .gf-comment__form { padding: 1rem; }
    .gf-comment__row { flex-direction: column; }
    .gf-comment__row input { flex: 1 1 auto; }
    .gf-comment__body { padding-left: 0; }

    .gf-footer__inner { padding: 1.4rem 1.2rem 2rem; }

    .gf-page__title { font-size: 1.5rem; }
    .gf-page__head { padding: 1.6rem 0 1.2rem; margin-bottom: 1.6rem; }

    .gf-links { grid-template-columns: minmax(0, 1fr); }

    /* 手机上单行省略信息量太少，放宽到两行 */
    .gf-links__desc {
        white-space: normal;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .gf-facts {
        grid-template-columns: 4rem 1fr;
        font-size: .86rem;
    }

    .gf-day { gap: .7rem; }
    .gf-day__no { flex-basis: 1.6rem; }
    .gf-day__list a { font-size: .92rem; }

    .gf-offline__list li { gap: .3rem .8rem; }

    .gf-error { padding: 3.4rem 0 3rem; }
    .gf-error__code { font-size: 3.2rem; }

    .gf-books { grid-template-columns: repeat(auto-fill, minmax(104px, 1fr)); gap: 1.5rem 1rem; }

    .gf-read__stats { grid-template-columns: repeat(2, 1fr); margin-bottom: 2rem; }
    .gf-read__stat { padding: .9rem .3rem; }
    .gf-read__stat em { font-size: 1.25rem; }

    /* 书籍详情：封面在上，信息在下 */
    .gf-bookdetail { flex-direction: column; gap: 1.4rem; padding-top: 1.6rem; }
    .gf-bookdetail__cover { flex: 0 0 auto; width: 116px; }
    .gf-bookdetail__title { font-size: 1.32rem; }
}

/* ==========================================================================
   运营与互动组件（第六轮补齐）
   --------------------------------------------------------------------------
   与 classic 功能对齐，但表现沿用国风自己的语汇：细栏线、纸色块、朱砂点，
   不加任何入场动画、阴影扩散或位移。侧栏只在宽屏作为第二列出现，窄屏
   顺序排到正文之后，不挤压阅读栏宽。
   ========================================================================== */

/* 双栏外壳：窄屏保持原来的单栏 44rem，宽屏才展开 */
.gf-shell { display: block; }

@media (min-width: 1120px) {
    .gf-shell {
        display: grid;
        grid-template-columns: minmax(0, 1fr) 15rem;
        gap: 2.6rem;
        max-width: 64rem;
        margin: 0 auto;
        padding: 0 1.5rem 2rem;
    }
    .gf-shell > .gf-main { max-width: none; margin: 0; padding: 0; }
    .gf-header__inner, .gf-footer__inner { max-width: 64rem; }
}

/* 侧栏 */
.gf-side {
    max-width: var(--measure);
    margin: 0 auto;
    padding: 1.8rem 1.5rem 2.4rem;
    border-top: 1px solid var(--rule-soft);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
    gap: 1.2rem 1.6rem;
    align-content: start;
    font-size: .86rem;
}

@media (min-width: 1120px) {
    .gf-side {
        display: block;
        max-width: none;
        margin: 0;
        /* 正文卷首留白较厚，侧栏稍往下让一点，视觉上不「顶到头」 */
        padding: 2.2rem 0 2rem;
        border-top: 0;
    }
}

.gf-side__box {
    min-width: 0;
    padding-bottom: 1.1rem;
    border-bottom: 1px solid var(--rule-soft);
}

@media (min-width: 1120px) {
    .gf-side__box { margin-bottom: 1.2rem; }
}

.gf-side__title {
    margin: 0 0 .8rem;
    font-size: .78rem;
    font-weight: 600;
    letter-spacing: .28em;
    color: var(--ink-3);
}

.gf-side__qr {
    display: block;
    width: 100%;
    max-width: 9rem;
    height: auto;
    margin: 0 0 .8rem;
}

.gf-side__name { margin: 0 0 .35rem; font-size: 1rem; color: var(--ink); }
.gf-side__desc { margin: 0 0 .5rem; line-height: 1.8; color: var(--ink-2); }
.gf-side__link { margin: 0; }
.gf-side__link a { color: var(--seal); }

.gf-side__tags { display: flex; flex-wrap: wrap; gap: .35rem .6rem; }
.gf-side__tags a {
    padding: .15rem .5rem;
    border: 1px solid var(--rule);
    color: var(--ink-2);
    font-size: .78rem;
}
.gf-side__tags a:hover { border-color: var(--seal); color: var(--seal); }

.gf-side__list { margin: 0; padding: 0; list-style: none; }
.gf-side__list li {
    padding: .35rem 0;
    border-bottom: 1px dashed var(--rule-soft);
    line-height: 1.65;
    overflow-wrap: anywhere;
}
.gf-side__list li:last-child { border-bottom: 0; }
.gf-side__list a { color: var(--ink-2); }
.gf-side__list a:hover { color: var(--seal); }
.gf-side__who { color: var(--seal); margin-right: .35rem; }

/* 近评：回复类评论分两层——上层是被引用的原文，下层是本条回复。
   只用左侧细线和淡墨区分层级，不用色块，保持素净。 */
.gf-side__comment { padding-left: .55rem; }
.gf-side__quote {
    display: block;
    margin: .15rem 0 .3rem;
    padding: .15rem 0 .15rem .55rem;
    border-left: 2px solid var(--rule);
    color: var(--ink-3);
    font-size: .76rem;
    line-height: 1.6;
}
.gf-side__quote-label { margin-right: .35rem; }
.gf-side__quote-text { color: var(--ink-3); }
.gf-side__quote:hover, .gf-side__quote:hover .gf-side__quote-text { color: var(--seal); }
.gf-side__entry { display: block; }
.gf-side__reply-mark { color: var(--seal); margin-right: .3rem; }

.gf-side__facts { margin: .3rem 0; color: var(--ink-3); line-height: 1.7; }
.gf-side__nav { display: flex; flex-wrap: wrap; gap: .3rem .9rem; }
.gf-side__nav .gf-side__title { flex: 0 0 100%; }
.gf-side__nav a { color: var(--ink-2); font-size: .84rem; }
.gf-side__nav a:hover { color: var(--seal); }

/* 广告位：没数据的节点由 JS 保持 display:none，注入内容后才显示 */
.gf-ad { margin: 1.4rem 0; min-width: 0; }
.gf-ad:empty { display: none !important; }
.gf-ad img { display: block; max-width: 100%; height: auto; }
.gf-ad ins.adsbygoogle { display: block; }

/* 公告条：静态列表，不做滚动动画 */
/* 公告轮播：单条显示，淡入淡出；高度固定，切换时整页不会跳动 */
.gf-notices {
    display: flex;
    align-items: center;
    gap: .9rem;
    margin: 0 0 1.2rem;
    padding: .65rem 0;
    border-top: 1px solid var(--rule-soft);
    border-bottom: 1px solid var(--rule-soft);
    font-size: .83rem;
}
.gf-notices__label { flex: 0 0 auto; color: var(--seal); letter-spacing: .2em; }
.gf-notices__viewport {
    position: relative;
    flex: 1 1 auto;
    min-width: 0;
    height: 1.7em;
    overflow: hidden;
}
.gf-notices__list {
    position: relative;
    height: 100%;
    margin: 0;
    padding: 0;
    list-style: none;
}
.gf-notices__list li {
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    line-height: 1.7;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--ink-2);
    opacity: 0;
    transition: opacity .45s ease;
    pointer-events: none;
}
.gf-notices__list li.is-active { opacity: 1; pointer-events: auto; }
.gf-notices__list a { color: var(--ink-2); }
.gf-notices__list a:hover { color: var(--seal); }

.gf-notices__dots { flex: 0 0 auto; display: flex; align-items: center; gap: .4rem; }
.gf-notices__dots[hidden] { display: none; }
.gf-notices__dots button {
    width: 5px;
    height: 5px;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: var(--rule);
    cursor: pointer;
}
.gf-notices__dots button.is-active { background: var(--seal); }
.gf-notices__dots button:focus-visible { outline: 1px solid var(--seal); outline-offset: 2px; }

/* 更多分类 */
.gf-more {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .4rem .9rem;
    padding: 0 0 1.1rem;
    font-size: .83rem;
}
.gf-more__label { color: var(--ink-3); letter-spacing: .15em; }
.gf-more a { color: var(--ink-2); border-bottom: 1px solid transparent; }
.gf-more a:hover { color: var(--seal); border-bottom-color: var(--seal); }

/* 导航里的搜索下拉 */
.gf-search .gf-nav__sub { min-width: 19rem; padding: .9rem; }
.gf-search__form { display: flex; gap: .45rem; min-width: 0; }
.gf-search__form input[type="search"] {
    flex: 1 1 auto;
    min-width: 0;
    padding: .4rem .55rem;
    font: inherit;
    font-size: .85rem;
    color: var(--ink);
    background: var(--paper);
    border: 1px solid var(--rule);
}
.gf-search__form button,
.gf-lock__form button {
    flex: 0 0 auto;
    padding: .4rem .85rem;
    font: inherit;
    font-size: .85rem;
    color: var(--paper);
    background: var(--seal);
    border: 1px solid var(--seal);
    cursor: pointer;
}
.gf-search__hot {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .35rem;
    margin-top: .7rem;
    font-size: .78rem;
    color: var(--ink-3);
}
.gf-search__hot button {
    font: inherit;
    font-size: .76rem;
    color: var(--ink-2);
    background: var(--paper-2);
    border: 1px solid var(--rule);
    padding: .1rem .45rem;
    cursor: pointer;
}
.gf-search__hot button:hover { color: var(--seal); border-color: var(--seal); }
.gf-search__form--empty { max-width: 24rem; margin: 1.2rem auto 0; }

/* 文章互动行 */
.gf-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .65rem 1rem;
    margin: 2rem 0 1.2rem;
    padding: .85rem 0;
    border-top: 1px solid var(--rule-soft);
    border-bottom: 1px solid var(--rule-soft);
    font-size: .84rem;
}
.gf-actions__btn,
.gf-reward__btn,
.gf-share__copy {
    font: inherit;
    font-size: .82rem;
    color: var(--ink-2);
    background: transparent;
    border: 1px solid var(--rule);
    padding: .3rem .75rem;
    cursor: pointer;
    list-style: none;
}
.gf-actions__btn::-webkit-details-marker,
.gf-reward__btn::-webkit-details-marker { display: none; }
.gf-actions__btn:hover,
.gf-reward__btn:hover,
.gf-share__copy:hover { color: var(--seal); border-color: var(--seal); }

.gf-share { display: flex; flex-wrap: wrap; align-items: center; gap: .3rem .75rem; }
.gf-share__label { color: var(--ink-3); }
.gf-share a { color: var(--ink-2); }
.gf-share a:hover { color: var(--seal); }

/* 赞赏码浮层 */
.gf-reward { position: relative; }
.gf-reward__body {
    position: absolute;
    left: 0;
    top: calc(100% + .45rem);
    z-index: 30;
    display: flex;
    gap: 1rem;
    max-width: min(90vw, 23rem);
    padding: .9rem;
    background: var(--paper-2);
    border: 1px solid var(--rule);
}
.gf-reward__body figure { margin: 0; text-align: center; font-size: .76rem; color: var(--ink-3); }
.gf-reward__body img { display: block; width: 9rem; height: 9rem; object-fit: contain; }

/* 文章密码 */
.gf-lock {
    margin: 1.4rem 0;
    padding: 1.1rem;
    background: var(--paper-2);
    border: 1px solid var(--rule);
    font-size: .9rem;
}
.gf-lock p { margin: 0; }
.gf-lock__form { display: flex; gap: .5rem; margin-top: .8rem; }
.gf-lock__form input {
    flex: 1 1 auto;
    min-width: 0;
    padding: .4rem .55rem;
    font: inherit;
    font-size: .85rem;
    color: var(--ink);
    background: var(--paper);
    border: 1px solid var(--rule);
}
.gf-lock__msg { margin-top: .6rem !important; font-size: .82rem; color: var(--seal); }

/* 热门 / 相关文章 */
.gf-related { margin: 2.2rem 0; }
.gf-related__list { margin: 0; padding: 0; list-style: none; }
.gf-related__list li {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: .5rem 0;
    border-bottom: 1px dashed var(--rule-soft);
    font-size: .9rem;
}
.gf-related__list a { color: var(--ink); min-width: 0; }
.gf-related__list a:hover { color: var(--seal); }
.gf-related__list span { flex: 0 0 auto; font-size: .78rem; color: var(--ink-3); }

/* 评论补充字段与赞踩 */
.gf-comment__row--qq { display: flex; align-items: center; gap: .6rem; margin-top: .5rem; }
.gf-comment__row--qq input { flex: 1 1 auto; min-width: 0; }
.gf-comment__qq-hint { flex: 0 0 auto; font-size: .76rem; color: var(--ink-3); }
.gf-comment__votes { display: flex; align-items: center; gap: .55rem; margin-top: .65rem; }
.gf-comment__vote {
    font: inherit;
    font-size: .76rem;
    color: var(--ink-3);
    background: transparent;
    border: 1px solid var(--rule-soft);
    padding: .15rem .55rem;
    cursor: pointer;
}
.gf-comment__vote:hover { color: var(--seal); border-color: var(--seal); }

/* 引用：@昵称 可跳回原评论，被引用的原文单独成块（对齐 classic） */
.gf-comment__at {
    display: inline-block;
    margin-bottom: .3rem;
    color: var(--seal);
    border-bottom: 1px solid var(--seal-soft);
}
.gf-comment__at:hover { border-bottom-color: var(--seal); }
.gf-comment__quote-text {
    padding-left: .65rem;
    border-left: 1px solid var(--rule-soft);
}
.gf-comment__quote-text p { margin: 0 0 .3em; }
.gf-comment__quote-text p:last-child { margin-bottom: 0; }
.gf-comment__quote-text a { color: var(--seal); }

.gf-comment__reply {
    margin-left: auto;
    font: inherit;
    font-size: .76rem;
    color: var(--ink-3);
    background: transparent;
    border: 1px solid var(--rule-soft);
    padding: .15rem .55rem;
    cursor: pointer;
}
.gf-comment__reply:hover { color: var(--seal); border-color: var(--seal); }

/* 回复态：表单会被挪到被回复的评论下方，用底色和提示条标出层级 */
.gf-comment__item .gf-comment__form {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--paper-2);
    border: 1px solid var(--rule-soft);
}
.gf-comment__replying {
    display: flex;
    align-items: center;
    gap: .8rem;
    margin-bottom: .75rem;
    padding: .45rem .7rem;
    font-size: .82rem;
    color: var(--ink-2);
    background: var(--paper);
    border-left: 2px solid var(--seal);
}
.gf-comment__replying[hidden] { display: none; }
.gf-comment__replying button {
    margin-left: auto;
    font: inherit;
    font-size: .78rem;
    color: var(--seal);
    background: transparent;
    border: 0;
    cursor: pointer;
}

/* 评论分页：classic 一次只给 10 条，这里按 hasNextPage 逐页追加 */
.gf-comment__more {
    display: block;
    width: 100%;
    margin-top: 1.2rem;
    padding: .6rem;
    font: inherit;
    font-size: .86rem;
    color: var(--ink-2);
    background: transparent;
    border: 1px solid var(--rule);
    cursor: pointer;
}
.gf-comment__more[hidden] { display: none; }
.gf-comment__more:hover { color: var(--seal); border-color: var(--seal); }
.gf-comment__more:disabled { opacity: .55; cursor: default; }

/* 外链等待跳转页 */
.gf-go__wait { padding: 2.2rem 0; text-align: center; }
.gf-go__wait p { margin: .6rem 0; }
.gf-go__url { font-size: .82rem; color: var(--ink-3); overflow-wrap: anywhere; }
.gf-go__now { display: inline-block; padding: .45rem 1.2rem; border: 1px solid var(--seal); color: var(--seal); }
.gf-go__now:hover { background: var(--seal-soft); }

/* 403 倒计时 */
.gf-error__timer { color: var(--seal); font-weight: 600; }
.gf-error__desc--small { font-size: .85rem; color: var(--ink-3); }
.gf-footer__links--pages { margin-top: .5rem; }

@media (max-width: 820px) {
    .gf-side { grid-template-columns: 1fr; }
    .gf-search .gf-nav__sub { min-width: 0; width: 100%; padding: .6rem 0; }
    .gf-actions { gap: .5rem .7rem; }
}

@media print {
    .gf-side, .gf-ad, .gf-notices, .gf-more, .gf-actions, .gf-reward,
    .gf-share, .gf-lock, .gf-related, .gf-comment__votes,
    .gf-comment__reply, .gf-comment__more, .gf-comment__replying { display: none !important; }
}

@media (prefers-reduced-motion: reduce) {
    * { transition: none !important; animation: none !important; }
    html { scroll-behavior: auto; }
}

@media print {
    .gf-header, .gf-footer, .gf-adjacent, .gf-comment, .gf-switch, .gf-top { display: none !important; }
    body { background: #fff; color: #000; }
    .gf-toc { position: static !important; width: auto; max-height: none; overflow: visible; }
    .gf-article__body { font-size: 11pt; }
}