/*
Theme Name: 绿色建材门户 (Green Building Materials Portal)
Theme URI: https://gov.lsjccx.org.cn
Author: 绿色建材门户设计组
Author URI: https://gov.lsjccx.org.cn
Description: 独立设计的绿色建材产业信息门户主题。基于 6 色林绿/苔绿/竹青体系 + 朱砂点缀。中文现代主义 + 政府门户庄重感。完整设计系统:Type Scale / 35 项微交互 / 4 档响应式。
Version: 1.0.0
Requires at least: 5.8
Tested up to: 6.4
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: gbm-portal
Tags: green, sustainable, government, portal, chinese, accessibility-ready
*/

/* ============================================================
 * 1. 设计 Token — 林绿 / 苔绿 / 竹青 + 墨色 + 宣纸
 * ========================================================== */
:root {
    /* 主色:绿色产业色阶 */
    --forest:        #2F4F3A;
    --forest-deep:   #1F3628;
    --forest-soft:   #E8EFE9;
    --moss:          #5E7A60;
    --moss-deep:     #455A47;
    --bamboo:        #7BA08A;
    --bamboo-soft:   #DAE6DD;

    /* 中性:墨色 + 宣纸 */
    --ink-900:       #1F2421;
    --ink-800:       #2A2F2C;
    --ink-700:       #3A4039;
    --ink-600:       #4D524E;
    --ink-500:       #5C625C;
    --ink-400:       #7A807B;
    --ink-300:       #9AA09B;
    --ink-200:       #C0C5BF;

    --paper-50:      #FAFAF7;
    --paper-100:     #F2F0EA;
    --paper-150:     #ECE9E0;
    --paper-200:     #E8E5DC;
    --paper-300:     #DDD9CD;

    /* 语义色 */
    --accent:        #B8453A;
    --accent-soft:   #F4E2DE;
    --accent-deep:   #8E2D26;
    --success:       #5C8A6E;
    --warning:       #C28B3D;

    /* 字体栈 */
    --font-serif-cn: "Source Han Serif SC", "Noto Serif SC", "Songti SC", serif;
    --font-sans-cn:  "PingFang SC", "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono:     "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
    --font-display:  "Inter", -apple-system, sans-serif;

    /* Type Scale */
    --fs-display: 56px;
    --fs-h1: 36px;
    --fs-h2: 26px;
    --fs-h3: 20px;
    --fs-h4: 17px;
    --fs-body: 15px;
    --fs-meta: 13px;
    --fs-caption: 12px;

    /* 间距 */
    --s-1: 4px;   --s-2: 8px;   --s-3: 12px;  --s-4: 16px;
    --s-5: 24px;  --s-6: 32px;  --s-7: 48px;  --s-8: 64px;
    --s-9: 96px;  --s-10: 128px;

    /* 圆角 */
    --r-sm: 2px;
    --r-md: 4px;
    --r-lg: 8px;

    /* 阴影 */
    --shadow-paper: 0 1px 0 rgba(31, 36, 33, 0.04);
    --shadow-rise:  0 1px 3px rgba(31, 36, 33, 0.04);
    --shadow-lift:  0 4px 12px rgba(31, 36, 33, 0.08);
    --shadow-ring:  0 0 0 3px rgba(47, 79, 58, 0.12);

    /* 布局 */
    --container: 1320px;
    --container-narrow: 1200px;

    /* 动效 */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --d-fast: 150ms;
    --d-base: 200ms;
    --d-slow: 300ms;
}

/* ============================================================
 * 2. Reset & Base
 * ========================================================== */
*, *::before, *::after { box-sizing: border-box; }

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

body {
    font-family: var(--font-sans-cn);
    font-size: var(--fs-body);
    line-height: 1.75;
    color: var(--ink-900);
    background-color: var(--paper-50);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    margin: 0;
    min-height: 100vh;
}

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

/* ============================================================
 * 3. Typography
 * ========================================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif-cn);
    font-weight: 600;
    line-height: 1.3;
    color: var(--ink-900);
    margin: 0 0 var(--s-4);
}

h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }
h4 { font-size: var(--fs-h4); }

p { margin: 0 0 var(--s-4); }

a {
    color: var(--ink-700);
    text-decoration: none;
    transition: color var(--d-base) var(--ease-out);
}

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

::selection {
    background-color: var(--forest-soft);
    color: var(--forest-deep);
}

/* ============================================================
 * 4. 布局容器
 * ========================================================== */
.gbm-container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--s-6);
}

.gbm-container--narrow {
    max-width: var(--container-narrow);
}

/* ============================================================
 * 5. Header
 * ========================================================== */
.gbm-header {
    background: var(--paper-50);
    border-bottom: 1px solid var(--paper-200);
    position: relative;
}

.gbm-header__inner {
    max-width: var(--container);
    margin: 0 auto;
    padding: var(--s-6) var(--s-6) var(--s-5);
    display: flex;
    align-items: center;
    gap: var(--s-5);
}

.gbm-header__logo img {
    height: 56px;
    width: auto;
    display: block;
}

.gbm-header__brand {
    flex: 1;
    min-width: 0;
}

.gbm-header__title {
    font-family: var(--font-serif-cn);
    font-size: 24px;
    font-weight: 600;
    line-height: 1.25;
    color: var(--ink-900);
    margin: 0;
    letter-spacing: 0.04em;
}

.gbm-header__title a {
    color: inherit;
    text-decoration: none;
}

.gbm-header__desc {
    font-size: var(--fs-meta);
    color: var(--ink-500);
    margin: 4px 0 0;
    letter-spacing: 0.12em;
}

.gbm-header__actions {
    display: flex;
    align-items: center;
    gap: var(--s-4);
}

.gbm-header__action {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--ink-500);
    font-size: var(--fs-meta);
    transition: color var(--d-base) var(--ease-out);
}

.gbm-header__action:hover { color: var(--forest); }

.gbm-header__action svg {
    width: 16px;
    height: 16px;
    stroke-width: 1.5;
    stroke: currentColor;
    fill: none;
}

.gbm-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    background: var(--forest-soft);
    color: var(--forest-deep);
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.05em;
    border-radius: 2px;
}

/* ============================================================
 * 6. Navigation
 * ========================================================== */
.gbm-nav {
    background: var(--paper-50);
    border-top: 1px solid var(--paper-200);
    border-bottom: 1px solid var(--paper-200);
}

.gbm-nav__list {
    list-style: none;
    margin: 0;
    padding: 0 var(--s-6);
    max-width: var(--container);
    margin: 0 auto;
    display: flex;
    align-items: stretch;
    overflow-x: auto;
    scrollbar-width: none;
}

.gbm-nav__list::-webkit-scrollbar { display: none; }

.gbm-nav__item {
    position: relative;
    flex-shrink: 0;
}

.gbm-nav__link {
    display: block;
    padding: var(--s-4) var(--s-5);
    color: var(--ink-700);
    font-size: 15px;
    font-weight: 400;
    letter-spacing: 0.04em;
    position: relative;
    transition: color var(--d-base) var(--ease-out),
                background var(--d-base) var(--ease-out);
}

.gbm-nav__link::after {
    content: "";
    position: absolute;
    left: var(--s-5);
    right: var(--s-5);
    bottom: -1px;
    height: 2px;
    background: transparent;
    transition: background var(--d-base) var(--ease-out),
                height var(--d-base) var(--ease-out);
}

.gbm-nav__link:hover {
    color: var(--forest);
    background: rgba(47, 79, 58, 0.04);
}

.gbm-nav__link:hover::after {
    background: var(--moss);
    height: 1px;
}

.gbm-nav__item--current .gbm-nav__link {
    color: var(--forest);
    font-weight: 600;
}

.gbm-nav__item--current .gbm-nav__link::after {
    background: var(--forest);
    height: 3px;
}

.gbm-nav__link:focus-visible {
    outline: 2px solid var(--forest);
    outline-offset: 2px;
}

/* ============================================================
 * 7. Hero
 * ========================================================== */
.gbm-hero {
    background: var(--paper-50);
    padding: var(--s-9) 0;
    position: relative;
    overflow: hidden;
}

.gbm-hero::before {
    content: "";
    position: absolute;
    left: -120px;
    bottom: -120px;
    width: 480px;
    height: 480px;
    background-image:
        radial-gradient(circle at 25% 25%, rgba(47, 79, 58, 0.04) 0%, transparent 35%),
        radial-gradient(circle at 75% 75%, rgba(123, 160, 138, 0.05) 0%, transparent 35%);
    pointer-events: none;
}

.gbm-hero__inner {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--s-6);
    display: grid;
    grid-template-columns: 60% 40%;
    gap: var(--s-7);
    align-items: center;
    position: relative;
}

.gbm-hero__eyebrow {
    font-family: var(--font-mono);
    font-size: var(--fs-caption);
    font-weight: 500;
    letter-spacing: 0.04em;
    color: var(--bamboo);
    text-transform: uppercase;
    display: inline-block;
    margin-bottom: var(--s-3);
    opacity: 0;
    animation: gbmFadeInUp 400ms var(--ease-out) 100ms forwards;
}

.gbm-hero__eyebrow::before {
    content: "·";
    margin-right: var(--s-2);
    color: var(--forest);
}

.gbm-hero__divider {
    display: block;
    width: 0;
    height: 3px;
    background: var(--forest);
    border-radius: 1px;
    margin: var(--s-4) 0 var(--s-5);
    animation: gbmDividerExpand 600ms var(--ease-out) 250ms forwards;
}

.gbm-hero__title {
    font-family: var(--font-serif-cn);
    font-size: var(--fs-display);
    font-weight: 600;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--ink-900);
    margin: 0 0 var(--s-5);
    opacity: 0;
    animation: gbmFadeInUp 400ms var(--ease-out) 200ms forwards;
}

.gbm-hero__subtitle {
    font-size: var(--fs-h4);
    font-weight: 400;
    line-height: 1.65;
    color: var(--ink-500);
    margin: 0 0 var(--s-6);
    max-width: 560px;
    opacity: 0;
    animation: gbmFadeInUp 400ms var(--ease-out) 350ms forwards;
}

.gbm-hero__actions {
    display: flex;
    gap: var(--s-3);
    flex-wrap: wrap;
    opacity: 0;
    animation: gbmFadeInUp 400ms var(--ease-out) 500ms forwards;
}

.gbm-hero__data {
    background: var(--paper-100);
    border-left: 4px solid var(--forest);
    padding: var(--s-6);
    opacity: 0;
    animation: gbmFadeInUp 400ms var(--ease-out) 400ms forwards;
}

.gbm-hero__data-header {
    font-size: var(--fs-meta);
    font-weight: 500;
    color: var(--ink-500);
    letter-spacing: 0.08em;
    margin: 0 0 var(--s-4);
    padding-bottom: var(--s-3);
    border-bottom: 1px solid var(--paper-300);
}

.gbm-hero__data-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: var(--s-4);
}

.gbm-hero__data-item {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--s-4);
}

.gbm-hero__data-num {
    font-family: var(--font-mono);
    font-size: 36px;
    font-weight: 500;
    color: var(--forest);
    line-height: 1;
    letter-spacing: -0.02em;
}

.gbm-hero__data-label {
    font-size: var(--fs-meta);
    color: var(--ink-700);
    text-align: right;
    line-height: 1.4;
}

.gbm-hero__data-footer {
    margin-top: var(--s-5);
    padding-top: var(--s-4);
    border-top: 1px solid var(--paper-300);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--fs-meta);
    color: var(--ink-500);
}

.gbm-hero__data-link {
    color: var(--forest);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.gbm-hero__data-link:hover { gap: 8px; }

/* ============================================================
 * 8. 按钮
 * ========================================================== */
.gbm-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--s-2);
    padding: 12px 24px;
    font-family: var(--font-sans-cn);
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 0.04em;
    border: 1px solid transparent;
    border-radius: var(--r-md);
    cursor: pointer;
    transition: all var(--d-base) var(--ease-out);
    text-decoration: none;
    line-height: 1;
}

.gbm-btn--primary {
    background: var(--forest);
    color: var(--paper-50);
    border-color: var(--forest);
}

.gbm-btn--primary:hover {
    background: var(--forest-deep);
    border-color: var(--forest-deep);
    color: var(--paper-50);
    transform: translateY(-1px);
    box-shadow: var(--shadow-rise);
}

.gbm-btn--primary:active { transform: translateY(0) scale(0.98); }

.gbm-btn--outline {
    background: transparent;
    color: var(--forest);
    border-color: var(--forest);
}

.gbm-btn--outline:hover {
    background: var(--forest-soft);
    color: var(--forest-deep);
}

.gbm-btn svg {
    width: 16px;
    height: 16px;
    transition: transform var(--d-base) var(--ease-out);
}

.gbm-btn:hover svg { transform: translateX(3px); }

/* ============================================================
 * 9. 主内容布局
 * ========================================================== */
.gbm-main {
    max-width: var(--container);
    margin: 0 auto;
    padding: var(--s-7) var(--s-6);
    display: grid;
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    gap: var(--s-7);
}

.gbm-content { min-width: 0; }

.gbm-sidebar { min-width: 0; }

/* ============================================================
 * 10. 区块标题
 * ========================================================== */
.gbm-section-title {
    display: flex;
    align-items: baseline;
    gap: var(--s-3);
    margin: 0 0 var(--s-6);
    padding: 0 0 var(--s-3);
    border-bottom: 1px solid var(--paper-300);
    position: relative;
}

.gbm-section-title__main {
    font-family: var(--font-serif-cn);
    font-size: var(--fs-h2);
    font-weight: 600;
    color: var(--ink-900);
    letter-spacing: 0.06em;
    display: inline-flex;
    align-items: baseline;
    gap: var(--s-3);
    margin: 0;
}

.gbm-section-title__main::before {
    content: "「";
    color: var(--forest);
    font-weight: 600;
    font-size: 1.1em;
}

.gbm-section-title__main::after {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    align-self: center;
    margin-left: var(--s-2);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

.gbm-section-title__more {
    margin-left: auto;
    font-size: var(--fs-meta);
    color: var(--ink-500);
    letter-spacing: 0.08em;
    transition: color var(--d-base) var(--ease-out);
}

.gbm-section-title__more:hover { color: var(--forest); }

/* ============================================================
 * 11. 文章卡片
 * ========================================================== */
.gbm-posts {
    display: flex;
    flex-direction: column;
}

.gbm-card {
    background: var(--paper-50);
    border: 1px solid var(--paper-200);
    border-radius: var(--r-md);
    padding: var(--s-5) var(--s-5);
    margin-bottom: var(--s-4);
    transition: border-color var(--d-base) var(--ease-out),
                transform var(--d-slow) var(--ease-out),
                box-shadow var(--d-slow) var(--ease-out),
                background var(--d-base) var(--ease-out);
    position: relative;
    overflow: hidden;
}

.gbm-card:hover {
    border-color: var(--forest);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lift);
}

.gbm-card::before {
    content: "";
    position: absolute;
    left: -1px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--forest);
    transform: translateX(-3px);
    opacity: 0;
    transition: transform var(--d-slow) var(--ease-out),
                opacity var(--d-base) var(--ease-out);
}

.gbm-card:hover::before {
    transform: translateX(0);
    opacity: 1;
}

.gbm-card__category {
    font-family: var(--font-mono);
    font-size: var(--fs-caption);
    font-weight: 500;
    color: var(--moss);
    letter-spacing: 0.12em;
    margin-bottom: var(--s-2);
}

.gbm-card__category::before {
    content: "·";
    color: var(--bamboo);
    margin-right: var(--s-1);
}

.gbm-card__title {
    font-family: var(--font-sans-cn);
    font-size: 18px;
    font-weight: 600;
    line-height: 1.5;
    color: var(--ink-900);
    margin: 0 0 var(--s-3);
    transition: color var(--d-base) var(--ease-out);
}

.gbm-card:hover .gbm-card__title { color: var(--forest); }

.gbm-card__title a {
    color: inherit;
    text-decoration: none;
}

.gbm-card__excerpt {
    font-size: var(--fs-meta);
    color: var(--ink-600);
    line-height: 1.7;
    margin: 0 0 var(--s-3);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.gbm-card__meta {
    font-family: var(--font-mono);
    font-size: var(--fs-meta);
    color: var(--ink-400);
    display: flex;
    gap: var(--s-4);
    align-items: center;
    letter-spacing: 0.02em;
}

.gbm-card__meta a { color: var(--ink-500); }
.gbm-card__meta a:hover { color: var(--forest); }

/* ============================================================
 * 12. 侧边栏
 * ========================================================== */
.gbm-widget {
    background: var(--paper-50);
    border: 1px solid var(--paper-200);
    border-radius: var(--r-md);
    padding: var(--s-5);
    margin-bottom: var(--s-5);
    transition: border-color var(--d-base) var(--ease-out);
}

.gbm-widget:hover { border-color: var(--ink-200); }

.gbm-widget__title {
    font-family: var(--font-sans-cn);
    font-size: var(--fs-h4);
    font-weight: 600;
    color: var(--ink-900);
    margin: 0 0 var(--s-4);
    padding: 0 0 var(--s-3);
    border-bottom: 1px solid var(--paper-300);
    position: relative;
    letter-spacing: 0.06em;
}

.gbm-widget__title::after {
    content: "";
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 32px;
    height: 2px;
    background: var(--accent);
}

/* Tab 控件 */
.gbm-tabs {
    display: flex;
    gap: var(--s-5);
    margin-bottom: var(--s-4);
    border-bottom: 1px solid var(--paper-300);
}

.gbm-tab {
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--ink-500);
    font-family: var(--font-sans-cn);
    font-size: var(--fs-meta);
    padding: var(--s-3) 0;
    cursor: pointer;
    letter-spacing: 0.08em;
    transition: color var(--d-base) var(--ease-out),
                border-color var(--d-base) var(--ease-out);
}

.gbm-tab:hover { color: var(--forest); }
.gbm-tab--active {
    color: var(--forest);
    font-weight: 600;
    border-bottom-color: var(--forest);
}

.gbm-tab-panel { display: none; }
.gbm-tab-panel--active { display: block; }

.gbm-post-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.gbm-post-list__item {
    display: flex;
    gap: var(--s-3);
    align-items: baseline;
    padding: var(--s-3) 0;
    border-bottom: 1px dashed var(--paper-300);
    transition: padding-left var(--d-base) var(--ease-out);
}

.gbm-post-list__item:hover { padding-left: var(--s-2); }

.gbm-post-list__item:last-child { border-bottom: none; }

.gbm-post-list__num {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--ink-300);
    font-weight: 500;
    flex-shrink: 0;
    min-width: 22px;
}

.gbm-post-list__item:hover .gbm-post-list__num { color: var(--accent); }

.gbm-post-list__link {
    font-size: var(--fs-meta);
    color: var(--ink-700);
    line-height: 1.65;
    transition: color var(--d-base) var(--ease-out);
}

.gbm-post-list__link:hover { color: var(--forest); }

/* 搜索 */
.gbm-search {
    display: flex;
    gap: 0;
}

.gbm-search__input {
    flex: 1;
    border: 1px solid var(--paper-300);
    border-radius: var(--r-md) 0 0 var(--r-md);
    padding: var(--s-3) var(--s-4);
    background: var(--paper-50);
    font-family: var(--font-sans-cn);
    font-size: var(--fs-meta);
    color: var(--ink-900);
    transition: border-color var(--d-base) var(--ease-out),
                box-shadow var(--d-base) var(--ease-out);
}

.gbm-search__input:focus {
    border-color: var(--forest);
    outline: none;
    box-shadow: var(--shadow-ring);
}

.gbm-search__button {
    background: var(--forest);
    color: var(--paper-50);
    border: 1px solid var(--forest);
    border-radius: 0 var(--r-md) var(--r-md) 0;
    padding: var(--s-3) var(--s-5);
    font-family: var(--font-sans-cn);
    font-size: var(--fs-meta);
    letter-spacing: 0.08em;
    font-weight: 500;
    cursor: pointer;
    transition: background var(--d-base) var(--ease-out);
}

.gbm-search__button:hover { background: var(--forest-deep); }

/* ============================================================
 * 13. Pagination
 * ========================================================== */
.gbm-pagination {
    margin-top: var(--s-7);
    display: flex;
    justify-content: center;
    gap: 6px;
}

.gbm-pagination a,
.gbm-pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--s-4);
    border: 1px solid var(--paper-300);
    border-radius: var(--r-md);
    color: var(--ink-600);
    font-family: var(--font-mono);
    font-size: var(--fs-meta);
    font-weight: 500;
    transition: all var(--d-base) var(--ease-out);
}

.gbm-pagination a:hover {
    color: var(--forest);
    border-color: var(--forest);
    background: var(--forest-soft);
    text-decoration: none;
}

.gbm-pagination .current {
    background: var(--forest);
    color: var(--paper-50);
    border-color: var(--forest);
}

/* ============================================================
 * 14. Footer
 * ========================================================== */
.gbm-footer {
    background: var(--ink-900);
    color: var(--paper-100);
    padding: var(--s-8) var(--s-6) var(--s-6);
    margin-top: var(--s-9);
    position: relative;
}

.gbm-footer::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg,
        var(--forest) 0%, var(--forest) 25%,
        transparent 25%, transparent 75%,
        var(--forest) 75%);
    opacity: 0.7;
}

.gbm-footer__inner {
    max-width: var(--container);
    margin: 0 auto;
}

.gbm-footer__gov {
    background: #161A18;
    color: var(--ink-300);
    padding: var(--s-5) var(--s-6);
    font-size: var(--fs-meta);
    line-height: 2;
    border-top: 1px solid var(--ink-700);
    text-align: center;
}

.gbm-footer__gov a {
    color: var(--paper-200);
    transition: color var(--d-base) var(--ease-out);
}

.gbm-footer__gov a:hover { color: var(--bamboo); }

.gbm-footer__row {
    max-width: var(--container);
    margin: var(--s-2) auto;
}

/* ============================================================
 * 15. Keyframes
 * ========================================================== */
@keyframes gbmFadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes gbmDividerExpand {
    from { width: 0; }
    to   { width: 48px; }
}

[data-animate] {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 400ms var(--ease-out),
                transform 400ms var(--ease-out);
}

[data-animate].in-view {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================================
 * 16. 滚动条 / 焦点
 * ========================================================== */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}
::-webkit-scrollbar-track { background: var(--paper-100); }
::-webkit-scrollbar-thumb {
    background: var(--ink-200);
    border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover { background: var(--bamboo); }

a:focus-visible,
button:focus-visible,
input:focus-visible {
    outline: 2px solid var(--forest);
    outline-offset: 2px;
}

/* skip-link */
.gbm-skip {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--forest);
    color: var(--paper-50);
    padding: var(--s-3) var(--s-4);
    z-index: 100000;
    transition: top var(--d-base) var(--ease-out);
}

.gbm-skip:focus { top: 0; }

/* ============================================================
 * 17. Responsive — 4 档断点
 * ========================================================== */
@media (max-width: 1439px) {
    :root { --fs-display: 48px; }
}

@media (max-width: 1023px) {
    :root {
        --fs-display: 40px;
        --fs-h1: 30px;
        --fs-h2: 22px;
    }

    .gbm-hero { padding: var(--s-7) 0; }
    .gbm-hero__inner {
        grid-template-columns: 1fr;
        gap: var(--s-6);
    }
    .gbm-hero__data { max-width: 480px; }

    .gbm-main {
        grid-template-columns: 1fr;
        gap: var(--s-6);
    }

    .gbm-header__title { font-size: 20px; }
    .gbm-header__desc { font-size: 11px; }
    .gbm-nav__link { font-size: 14px; padding: var(--s-3) var(--s-3); }
}

@media (max-width: 767px) {
    :root {
        --fs-display: 32px;
        --fs-h1: 24px;
        --fs-h2: 20px;
        --fs-h3: 17px;
        --fs-body: 14px;
        --s-6: 24px;
        --s-7: 32px;
        --s-8: 48px;
    }

    body { font-size: 14px; }

    .gbm-header__inner {
        flex-wrap: wrap;
        gap: var(--s-3);
        padding: var(--s-4) var(--s-4);
    }
    .gbm-header__logo img { height: 44px; }
    .gbm-header__title { font-size: 18px; }
    .gbm-header__desc { font-size: 11px; }
    .gbm-header__actions {
        width: 100%;
        justify-content: flex-end;
        padding-top: var(--s-2);
    }

    .gbm-hero__inner { padding: 0 var(--s-4); }
    .gbm-hero__data-num { font-size: 28px; }
    .gbm-hero__data { padding: var(--s-5); }
    .gbm-hero { padding: var(--s-6) 0; }

    .gbm-main { padding: var(--s-5) var(--s-4); }
    .gbm-card { padding: var(--s-4); }
    .gbm-card__title { font-size: 16px; }

    .gbm-nav__list { padding: 0 var(--s-4); }
    .gbm-nav__link { font-size: 13px; padding: var(--s-3) var(--s-3); white-space: nowrap; }
    .gbm-footer { padding: var(--s-6) var(--s-4) var(--s-5); }
}

/* ============================================================
 * 18. Print
 * ========================================================== */
@media print {
    .gbm-nav, .gbm-hero, .gbm-footer__gov,
    .gbm-header__actions, .gbm-sidebar {
        display: none !important;
    }
    body { background: white !important; color: black !important; }
    .gbm-card { border-color: #ccc !important; break-inside: avoid; }
}

/* ============================================================
 * 19. Reduced Motion
 * ========================================================== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    [data-animate] { opacity: 1; transform: none; }
}

/* ============================================================
 * 20. 卡片带特色图布局
 * ========================================================== */
.gbm-card--with-thumb {
    display: grid;
    grid-template-columns: 80px minmax(0, 1fr);
    gap: var(--s-4);
    align-items: center;
}

.gbm-card__thumb {
    display: block;
    overflow: hidden;
    border-radius: var(--r-sm);
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg,
        var(--paper-100) 0%,
        rgba(123, 160, 138, 0.10) 50%,
        var(--paper-100) 100%);
    position: relative;
    flex-shrink: 0;
}

.gbm-card__thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 500ms var(--ease-out),
                filter var(--d-base) var(--ease-out);
}

.gbm-card:hover .gbm-card__thumb img {
    transform: scale(1.05);
    filter: brightness(0.96);
}

.gbm-card__thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 500ms var(--ease-out),
                filter var(--d-base) var(--ease-out);
}

.gbm-card:hover .gbm-card__thumb img {
    transform: scale(1.05);
    filter: brightness(0.96);
}

.gbm-card__body {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-width: 0;
}

/* ============================================================
 * 21. Single Post (文章详情页)
 * ========================================================== */
.gbm-main--single {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
}

.gbm-single {
    background: var(--paper-50);
    border: 1px solid var(--paper-200);
    border-radius: var(--r-md);
    padding: var(--s-7);
    margin-bottom: var(--s-5);
}

.gbm-single__header {
    margin-bottom: var(--s-6);
    padding-bottom: var(--s-5);
    border-bottom: 1px solid var(--paper-200);
}

.gbm-single__category {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: var(--fs-caption);
    font-weight: 500;
    color: var(--moss);
    background: var(--forest-soft);
    padding: 4px 10px;
    border-radius: 2px;
    letter-spacing: 0.08em;
    margin-bottom: var(--s-3);
}

.gbm-single__category::before {
    content: "·";
    color: var(--bamboo);
    margin-right: var(--s-1);
}

.gbm-single__title {
    font-family: var(--font-serif-cn);
    font-size: 32px;
    font-weight: 600;
    line-height: 1.3;
    color: var(--ink-900);
    margin: 0 0 var(--s-4);
    letter-spacing: 0.01em;
}

.gbm-single__meta {
    font-family: var(--font-mono);
    font-size: var(--fs-meta);
    color: var(--ink-500);
    display: flex;
    gap: var(--s-3);
    align-items: center;
    flex-wrap: wrap;
    letter-spacing: 0.02em;
}

.gbm-single__hero {
    margin: 0 0 var(--s-6);
    border-radius: var(--r-md);
    overflow: hidden;
    background: var(--paper-100);
}

.gbm-single__hero img {
    width: 100%;
    height: auto;
    display: block;
}

.gbm-single__caption {
    margin-top: var(--s-2);
    font-size: var(--fs-caption);
    color: var(--ink-500);
    text-align: center;
    padding: var(--s-2);
}

.gbm-single__content {
    font-size: 16px;
    line-height: 1.85;
    color: var(--ink-800);
}

.gbm-single__content > * {
    margin-bottom: var(--s-5);
}

.gbm-single__content > *:last-child {
    margin-bottom: 0;
}

.gbm-single__content h2 {
    font-family: var(--font-serif-cn);
    font-size: 24px;
    font-weight: 600;
    color: var(--ink-900);
    margin: var(--s-7) 0 var(--s-4);
    padding-left: var(--s-3);
    border-left: 3px solid var(--forest);
}

.gbm-single__content h3 {
    font-family: var(--font-serif-cn);
    font-size: 20px;
    font-weight: 600;
    color: var(--ink-900);
    margin: var(--s-6) 0 var(--s-3);
}

.gbm-single__content h4 {
    font-family: var(--font-sans-cn);
    font-size: 17px;
    font-weight: 600;
    color: var(--ink-900);
    margin: var(--s-5) 0 var(--s-3);
}

.gbm-single__content p {
    font-family: var(--font-sans-cn);
    line-height: 1.85;
    color: var(--ink-800);
}

.gbm-single__content a {
    color: var(--forest);
    border-bottom: 1px solid var(--bamboo-soft);
    transition: border-color var(--d-base) var(--ease-out);
}

.gbm-single__content a:hover {
    border-bottom-color: var(--forest);
}

.gbm-single__content ul,
.gbm-single__content ol {
    padding-left: var(--s-6);
    line-height: 1.85;
}

.gbm-single__content li {
    margin-bottom: var(--s-2);
}

.gbm-single__content blockquote {
    border-left: 3px solid var(--accent);
    background: var(--paper-100);
    padding: var(--s-4) var(--s-5);
    margin: var(--s-5) 0;
    font-family: var(--font-serif-cn);
    font-style: normal;
    color: var(--ink-700);
}

.gbm-single__content code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    background: var(--paper-100);
    padding: 2px 6px;
    border-radius: 2px;
    color: var(--accent-deep);
}

.gbm-single__content pre {
    background: var(--ink-900);
    color: var(--paper-100);
    padding: var(--s-4);
    border-radius: var(--r-md);
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: var(--fs-meta);
    line-height: 1.6;
}

.gbm-single__content pre code {
    background: transparent;
    color: inherit;
    padding: 0;
}

.gbm-single__content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--r-md);
    margin: var(--s-5) 0;
    display: block;
}

/* 文章正文图片 - 强制大图模式(不用 thumbnail) */
.gbm-single__content img.size-thumbnail,
.gbm-single__content img[class*="size-"] {
    max-width: 100%;
    width: auto;
}

/* 段落对齐图片 */
.gbm-single__content .aligncenter {
    display: block;
    margin: var(--s-6) auto;
}

.gbm-single__content .alignleft {
    float: left;
    margin: 0 var(--s-4) var(--s-3) 0;
    max-width: 50%;
}

.gbm-single__content .alignright {
    float: right;
    margin: 0 0 var(--s-3) var(--s-4);
    max-width: 50%;
}

.gbm-single__content figure {
    margin: var(--s-5) 0;
}

.gbm-single__content figcaption {
    font-size: var(--fs-caption);
    color: var(--ink-500);
    text-align: center;
    margin-top: var(--s-2);
}

.gbm-single__content table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--s-5) 0;
    font-size: var(--fs-meta);
    border: 1px solid var(--paper-200);
}

.gbm-single__content th,
.gbm-single__content td {
    padding: var(--s-3) var(--s-4);
    border-bottom: 1px solid var(--paper-200);
    text-align: left;
}

.gbm-single__content th {
    background: var(--forest);
    color: var(--paper-50);
    font-weight: 600;
    font-family: var(--font-sans-cn);
}

.gbm-single__content tr:hover td {
    background: var(--paper-100);
}

/* 分类/标签 区 */
.gbm-single__footer {
    margin-top: var(--s-7);
    padding-top: var(--s-5);
    border-top: 1px solid var(--paper-200);
    display: flex;
    flex-direction: column;
    gap: var(--s-3);
}

.gbm-single__tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--s-2);
    align-items: center;
}

.gbm-single__tags-label {
    font-family: var(--font-mono);
    font-size: var(--fs-caption);
    color: var(--ink-500);
    letter-spacing: 0.08em;
    margin-right: var(--s-2);
}

.gbm-single__tags a {
    display: inline-block;
    padding: 4px 12px;
    background: var(--paper-100);
    color: var(--moss);
    font-size: var(--fs-meta);
    border-radius: 100px;
    transition: background var(--d-base) var(--ease-out),
                color var(--d-base) var(--ease-out);
}

.gbm-single__tags a:hover {
    background: var(--forest);
    color: var(--paper-50);
}

/* 上一篇/下一篇 */
.gbm-single__nav {
    margin-top: var(--s-7);
    padding-top: var(--s-5);
    border-top: 1px solid var(--paper-200);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--s-4);
}

.gbm-single__nav-item {
    display: flex;
    flex-direction: column;
    gap: var(--s-2);
    padding: var(--s-4);
    background: var(--paper-100);
    border-radius: var(--r-md);
    transition: background var(--d-base) var(--ease-out),
                transform var(--d-base) var(--ease-out);
    text-decoration: none;
}

.gbm-single__nav-item--next {
    text-align: right;
}

.gbm-single__nav-item:hover {
    background: var(--forest-soft);
    transform: translateY(-2px);
    text-decoration: none;
}

.gbm-single__nav-label {
    font-family: var(--font-mono);
    font-size: var(--fs-caption);
    color: var(--moss);
    letter-spacing: 0.08em;
}

.gbm-single__nav-title {
    font-family: var(--font-serif-cn);
    font-size: var(--fs-h4);
    font-weight: 600;
    color: var(--ink-900);
    line-height: 1.4;
}

/* 评论区 */
.gbm-single #comments,
.gbm-single .comments-area {
    margin-top: var(--s-7);
    padding-top: var(--s-5);
    border-top: 1px solid var(--paper-200);
}

.gbm-single #comments h2,
.gbm-single .comments-title {
    font-family: var(--font-serif-cn);
    font-size: var(--fs-h3);
    color: var(--ink-900);
    margin-bottom: var(--s-5);
}

.gbm-single .comment-list {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--s-5);
}

.gbm-single .comment-body {
    padding: var(--s-4);
    background: var(--paper-100);
    border-radius: var(--r-md);
    margin-bottom: var(--s-3);
}

.gbm-single #respond {
    margin-top: var(--s-5);
}

.gbm-single input[type="text"],
.gbm-single input[type="email"],
.gbm-single textarea {
    width: 100%;
    border: 1px solid var(--paper-300);
    border-radius: var(--r-md);
    padding: var(--s-3) var(--s-4);
    background: var(--paper-50);
    font-family: var(--font-sans-cn);
    margin-bottom: var(--s-3);
}

.gbm-single input[type="submit"] {
    background: var(--forest);
    color: var(--paper-50);
    border: none;
    border-radius: var(--r-md);
    padding: var(--s-3) var(--s-5);
    font-family: var(--font-sans-cn);
    cursor: pointer;
    transition: background var(--d-base) var(--ease-out);
}

.gbm-single input[type="submit"]:hover {
    background: var(--forest-deep);
}

/* 分页 */
.gbm-single__pages {
    margin: var(--s-5) 0;
    padding: var(--s-4);
    background: var(--paper-100);
    border-radius: var(--r-md);
    display: flex;
    gap: var(--s-2);
    align-items: center;
    flex-wrap: wrap;
    font-family: var(--font-mono);
    font-size: var(--fs-meta);
}

.gbm-single__pages a,
.gbm-single__pages span {
    padding: 4px 10px;
    border-radius: var(--r-sm);
    color: var(--ink-700);
}

.gbm-single__pages a:hover {
    background: var(--forest);
    color: var(--paper-50);
    text-decoration: none;
}

.gbm-single__pages .current {
    background: var(--forest);
    color: var(--paper-50);
}

/* ============================================================
 * 22. Single Post 响应式
 * ========================================================== */
@media (max-width: 1023px) {
    .gbm-single__title { font-size: 26px; }
    .gbm-card--with-thumb {
        grid-template-columns: 72px 1fr;
        gap: var(--s-3);
    }
    .gbm-card__thumb,
    .gbm-card__thumb img {
        width: 72px;
        height: 72px;
    }
}

@media (max-width: 767px) {
    .gbm-single { padding: var(--s-5); }
    .gbm-single__title { font-size: 22px; }
    .gbm-card--with-thumb {
        grid-template-columns: 1fr;
        gap: var(--s-3);
    }
    .gbm-card__thumb,
    .gbm-card__thumb img {
        width: 100%;
        height: auto;
        aspect-ratio: 16 / 9;
    }
    .gbm-single__nav {
        grid-template-columns: 1fr;
    }
    .gbm-single__nav-item--next {
        text-align: left;
    }
}

/* ============================================================
 * 23. Hero Marquee (单条切换跑马灯)
 * ========================================================== */
.gbm-hero__feed {
    background: var(--paper-100);
    border-left: 4px solid var(--forest);
    padding: var(--s-5) var(--s-5) var(--s-4);
    position: relative;
    display: flex;
    flex-direction: column;
    min-height: 280px;
}

.gbm-hero__feed-header {
    display: flex;
    align-items: center;
    gap: var(--s-3);
    font-family: var(--font-sans-cn);
    font-size: var(--fs-h4);
    font-weight: 600;
    color: var(--ink-900);
    margin: 0 0 var(--s-4);
    padding-bottom: var(--s-3);
    border-bottom: 1px solid var(--paper-300);
    letter-spacing: 0.04em;
}

.gbm-hero__feed-dot {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 0 3px var(--accent-soft);
    animation: gbmDotPulse 2s ease-in-out infinite;
    flex-shrink: 0;
}

@keyframes gbmDotPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%      { opacity: 0.6; transform: scale(0.85); }
}

.gbm-hero__feed-counter {
    margin-left: auto;
    font-family: var(--font-mono);
    font-size: var(--fs-meta);
    color: var(--ink-500);
    letter-spacing: 0.05em;
}

.gbm-hero__feed-current {
    color: var(--forest);
    font-weight: 600;
}

.gbm-hero__feed-sep {
    color: var(--ink-300);
    margin: 0 2px;
}

.gbm-hero__feed-total {
    color: var(--ink-700);
}

/* 跑马灯视口 - 用 display 切换(跨浏览器) */
.gbm-marquee {
    position: relative;
    flex: 1;
}

.gbm-marquee__viewport {
    position: relative;
    width: 100%;
}

/* 默认全部隐藏(Safari/Chrome 都兼容) */
.gbm-marquee__item {
    display: none;
    text-decoration: none;
    color: inherit;
    flex-direction: column;
    gap: var(--s-3);
}

/* 激活项显示 - 用简单 fade */
.gbm-marquee__item--active {
    display: flex;
    animation: gbmMarqueeFade 600ms var(--ease-out);
}

@keyframes gbmMarqueeFade {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.gbm-marquee__image {
    display: block;
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border-radius: var(--r-md);
    background: var(--paper-200);
}

.gbm-marquee__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 500ms var(--ease-out);
}

.gbm-marquee__item:hover .gbm-marquee__image img {
    transform: scale(1.04);
}

.gbm-marquee__badge {
    position: absolute;
    top: var(--s-3);
    left: var(--s-3);
    display: inline-block;
    padding: 4px 10px;
    background: var(--accent);
    color: var(--paper-50);
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.1em;
    border-radius: 2px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.gbm-marquee__body {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.gbm-marquee__num {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    color: var(--forest);
    letter-spacing: 0.08em;
    margin-bottom: 2px;
}

.gbm-marquee__item--sticky .gbm-marquee__num {
    color: var(--accent);
}

.gbm-marquee__title {
    font-family: var(--font-sans-cn);
    font-size: var(--fs-h4);
    font-weight: 600;
    color: var(--ink-900);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--d-base) var(--ease-out);
}

.gbm-marquee__item:hover .gbm-marquee__title {
    color: var(--forest);
}

.gbm-marquee__excerpt {
    font-size: var(--fs-meta);
    color: var(--ink-500);
    line-height: 1.65;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.gbm-marquee__meta {
    display: flex;
    align-items: center;
    gap: var(--s-2);
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--ink-500);
    letter-spacing: 0.02em;
}

.gbm-marquee__cat {
    color: var(--moss);
    font-weight: 500;
}

/* 跑马灯分页点 */
.gbm-marquee__dots {
    display: flex;
    gap: 6px;
    justify-content: center;
    margin-top: var(--s-3);
}

.gbm-marquee__dot {
    width: 24px;
    height: 3px;
    background: var(--paper-300);
    border: none;
    padding: 0;
    cursor: pointer;
    border-radius: 1px;
    transition: background var(--d-base) var(--ease-out),
                width var(--d-base) var(--ease-out);
}

.gbm-marquee__dot--active {
    background: var(--forest);
    width: 32px;
}

.gbm-marquee__dot:hover {
    background: var(--moss);
}

.gbm-hero__feed-footer {
    margin-top: var(--s-3);
    padding-top: var(--s-3);
    border-top: 1px solid var(--paper-300);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-mono);
    font-size: var(--fs-caption);
    color: var(--ink-500);
}

.gbm-hero__data-link {
    color: var(--forest);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: gap var(--d-base) var(--ease-out);
}

.gbm-hero__data-link:hover {
    gap: 8px;
}

/* 响应式 */
@media (max-width: 1023px) {
    .gbm-hero__feed { min-height: 240px; }
}

@media (max-width: 767px) {
    .gbm-hero__feed { padding: var(--s-4); min-height: 200px; }
    .gbm-marquee__thumb { width: 56px; height: 56px; }
    .gbm-marquee__title { font-size: var(--fs-meta); }
}

@media (prefers-reduced-motion: reduce) {
    .gbm-hero__feed-dot { animation: none !important; }
    .gbm-marquee__item { transition: none !important; }
}