/* =============================================================================
 * NFarms 门户首页 —— css/portal.css
 * 门户专属样式：在共享设计令牌（nf.css 的 --nf-*）之上扩展布局与动效
 *
 * 约定：
 *   1) 本文件**不重新定义**任何 --nf-* 变量，只消费它们，保证与生态其余平台观感一致；
 *   2) 门户自有变量一律以 --pf-* 起头，作用域挂在 .pf-body 上，不外泄；
 *   3) 零外部资源：字体走系统字体栈（--nf-font），图标与纹理由 CSS/字符绘制。
 * ========================================================================== */

/* --- 0. 门户自有令牌（派生自共享令牌，不覆盖） --------------------------- */
.pf-body {
  --pf-nav-h: 66px;
  --pf-wrap: 1240px;
  --pf-wrap-wide: 1440px;
  --pf-veil: linear-gradient(180deg, rgba(9, 14, 17, 0.88) 0%, rgba(9, 14, 17, 0.62) 42%, rgba(9, 14, 17, 0.92) 100%);
  --pf-glass: color-mix(in srgb, var(--nf-panel) 78%, transparent);
  --pf-hair: 1px solid var(--nf-line-soft);
  --pf-ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --pf-media-bg:
    radial-gradient(120% 95% at 10% 6%, rgba(89, 201, 141, 0.26), transparent 58%),
    radial-gradient(95% 85% at 92% 94%, rgba(74, 158, 234, 0.2), transparent 60%),
    repeating-linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0 10px, rgba(255, 255, 255, 0) 10px 24px),
    linear-gradient(158deg, var(--nf-bg-soft) 0%, var(--nf-panel-2) 100%);
  margin: 0;
  background: var(--nf-bg);
  color: var(--nf-text);
  font-family: var(--nf-font);
  -webkit-font-smoothing: antialiased;
}
[data-theme="light"] .pf-body {
  --pf-veil: linear-gradient(180deg, rgba(250, 253, 251, 0.9) 0%, rgba(250, 253, 251, 0.66) 40%, rgba(250, 253, 251, 0.94) 100%);
}
.pf-body ::selection { background: var(--nf-accent-soft); color: var(--nf-text); }

/* 键盘可见的焦点框（可访问性基线） */
.pf-body a:focus-visible,
.pf-body button:focus-visible,
.pf-body input:focus-visible,
.pf-body [tabindex]:focus-visible { outline: 2px solid var(--nf-accent-2); outline-offset: 2px; border-radius: var(--nf-radius-sm); }

.pf-visually-hidden {
  position: absolute !important; width: 1px; height: 1px; margin: -1px; padding: 0; border: 0;
  clip: rect(0 0 0 0); clip-path: inset(50%); overflow: hidden; white-space: nowrap;
}
.pf-skip {
  position: absolute; left: 12px; top: -60px; z-index: 90;
  padding: 10px 16px; background: var(--nf-accent); color: #08120c; font-weight: 600;
  border-radius: 0 0 var(--nf-radius) var(--nf-radius);
  transition: top var(--nf-speed) var(--pf-ease);
}
.pf-skip:focus { top: 0; }
.pf-wrap { width: 100%; max-width: var(--pf-wrap); margin: 0 auto; padding: 0 28px; }

/* 滚动进入视口的淡入动效 */
.pf-reveal { opacity: 0; transform: translateY(22px); transition: opacity 620ms var(--pf-ease), transform 620ms var(--pf-ease); transition-delay: calc(var(--pf-i, 0) * 60ms); }
.pf-reveal.pf-in { opacity: 1; transform: none; }

.pf-note { margin: 10px 0 0; font-size: 12.5px; line-height: 1.7; color: var(--nf-text-mute); }
.pf-note--warn { color: var(--nf-warn); }
.pf-note kbd { font-family: var(--nf-font-mono); font-size: 11.5px; padding: 1px 5px; border: var(--pf-hair); border-radius: 4px; background: var(--nf-panel-2); color: var(--nf-text-dim); }

/* 照片容器：真实图片缺失时退回渐变底图 + 几何纹理 */
.pf-media { position: relative; overflow: hidden; background: var(--pf-media-bg); isolation: isolate; }
.pf-media .pf-img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform 700ms var(--pf-ease); }
.pf-media--fallback::before {
  content: ""; position: absolute; inset: 0;
  background:
    repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.06) 0 2px, transparent 2px 14px),
    radial-gradient(60% 60% at 50% 40%, rgba(62, 165, 107, 0.22), transparent 70%);
}
.pf-media--fallback::after {
  content: attr(data-media-label);
  position: absolute; left: 10px; bottom: 8px; max-width: calc(100% - 20px);
  font-size: 11px; letter-spacing: 0.04em; color: var(--nf-text-mute);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

/* --- 1. 顶部导航 --------------------------------------------------------- */
.pf-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 60;
  background: transparent; border-bottom: 1px solid transparent;
  transition: background var(--nf-speed) var(--pf-ease), box-shadow var(--nf-speed) var(--pf-ease), border-color var(--nf-speed) var(--pf-ease);
}
.pf-nav.scrolled { background: var(--pf-glass); backdrop-filter: blur(14px) saturate(140%); border-bottom-color: var(--nf-line-soft); box-shadow: var(--nf-shadow-sm); }
.pf-nav-inner { max-width: var(--pf-wrap-wide); margin: 0 auto; height: var(--pf-nav-h); padding: 0 28px; display: flex; align-items: center; gap: 18px; }

.pf-brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; color: var(--nf-text); flex: none; }
.pf-brand-mark {
  width: 38px; height: 38px; display: grid; place-items: center; border-radius: 11px;
  font-weight: 800; font-size: 18px; color: #07130d;
  background: linear-gradient(140deg, var(--nf-accent-2), var(--nf-accent));
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.18);
}
.pf-brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.pf-brand-text strong { font-size: 17px; letter-spacing: 0.04em; }
.pf-brand-text em { font-style: normal; font-size: 11.5px; color: var(--nf-text-mute); letter-spacing: 0.08em; }

.pf-nav-links { display: flex; align-items: center; gap: 4px; margin-left: 8px; flex: 1 1 auto; }
.pf-nav-links a {
  position: relative; padding: 8px 12px; border-radius: var(--nf-radius-sm);
  font-size: 14px; color: var(--nf-text-dim); text-decoration: none;
  transition: color var(--nf-speed) var(--pf-ease), background var(--nf-speed) var(--pf-ease);
}
.pf-nav-links a:hover { color: var(--nf-text); background: var(--nf-mute-soft); }
.pf-nav-links a.active { color: var(--nf-text); }
.pf-nav-links a.active::after {
  content: ""; position: absolute; left: 12px; right: 12px; bottom: 2px; height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, var(--nf-accent), var(--nf-accent-2));
}

.pf-nav-cta { display: flex; align-items: center; gap: 8px; flex: none; }
.pf-cta { white-space: nowrap; }
.pf-theme {
  display: inline-flex; align-items: center; gap: 7px; flex: none;
  padding: 8px 12px; border: var(--pf-hair); border-radius: var(--nf-radius-sm);
  background: var(--nf-panel-2); color: var(--nf-text-dim); font-size: 13px; font-family: inherit; cursor: pointer;
  transition: color var(--nf-speed) var(--pf-ease), border-color var(--nf-speed) var(--pf-ease);
}
.pf-theme:hover { color: var(--nf-text); border-color: var(--nf-accent-line); }
.pf-theme .pf-icon { font-size: 15px; }
.pf-nav-toggle {
  display: none; width: 40px; height: 38px; padding: 9px;
  border: var(--pf-hair); border-radius: var(--nf-radius-sm); background: var(--nf-panel-2);
  cursor: pointer; flex-direction: column; justify-content: space-between;
}
.pf-nav-toggle span { display: block; height: 2px; border-radius: 2px; background: var(--nf-text-dim); }
.pf-nav-toggle[aria-expanded="true"] span { background: var(--nf-accent-2); }

/* --- 2. 首屏 Hero ------------------------------------------------------- */
.pf-hero {
  position: relative; display: flex; flex-direction: column; justify-content: center;
  min-height: 100vh; min-height: 100svh;
  padding: calc(var(--pf-nav-h) + 40px) 28px 28px;
  overflow: hidden; background: var(--pf-media-bg);
}
.pf-hero-stage { position: absolute; inset: 0; z-index: 0; }
.pf-slide {
  position: absolute; inset: 0; margin: 0; opacity: 0; transform: scale(1.04);
  transition: opacity 1200ms var(--pf-ease), transform 8000ms linear;
  pointer-events: none;
}
.pf-slide.is-on { opacity: 1; transform: scale(1.11); }
.pf-media--hero { width: 100%; height: 100%; background: none; }
.pf-slide-cap {
  position: absolute; right: 22px; bottom: 18px; max-width: 46%; text-align: right;
  font-size: 12px; color: rgba(255, 255, 255, 0.82); text-shadow: 0 1px 6px rgba(0, 0, 0, 0.7);
}
[data-theme="light"] .pf-slide-cap { color: var(--nf-text-dim); text-shadow: none; }
.pf-slide-cap strong { display: block; font-size: 13.5px; letter-spacing: 0.02em; }
.pf-slide-cap span { color: inherit; opacity: 0.82; }

.pf-hero-veil { position: absolute; inset: 0; z-index: 1; background: var(--pf-veil); }
.pf-hero-inner { position: relative; z-index: 2; width: 100%; max-width: var(--pf-wrap); margin: 0 auto; }
.pf-hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px; margin: 0 0 16px; padding: 6px 13px;
  font-size: 12.5px; letter-spacing: 0.14em; color: var(--nf-accent-2);
  border: 1px solid var(--nf-accent-line); border-radius: 999px; background: rgba(62, 165, 107, 0.1);
}
.pf-hero-title { margin: 0 0 18px; max-width: 20ch; font-size: clamp(30px, 5.4vw, 62px); line-height: 1.14; font-weight: 800; }
.pf-hero-lead { margin: 0 0 26px; max-width: 62ch; font-size: clamp(14px, 1.35vw, 17px); line-height: 1.85; color: var(--nf-text-dim); }
.pf-hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.pf-body .nf-btn.lg { padding: 12px 22px; font-size: 15px; }

.pf-hero-facts { display: flex; flex-wrap: wrap; gap: 34px; margin: 34px 0 22px; padding: 0; list-style: none; }
.pf-hero-facts li { display: flex; align-items: baseline; gap: 6px; }
.pf-fact-value { font-size: 30px; font-weight: 700; color: var(--nf-accent-2); line-height: 1; }
.pf-fact-unit { font-size: 12.5px; color: var(--nf-text-mute); }
.pf-fact-label { font-size: 13px; color: var(--nf-text-dim); }

.pf-hero-media { display: flex; align-items: center; gap: 12px; }
.pf-audio {
  display: inline-flex; align-items: center; gap: 10px; padding: 9px 15px;
  border: var(--pf-hair); border-radius: 999px;
  background: var(--pf-glass); backdrop-filter: blur(8px);
  color: var(--nf-text-dim); font-size: 13px; font-family: inherit; cursor: pointer;
  transition: color var(--nf-speed) var(--pf-ease), border-color var(--nf-speed) var(--pf-ease);
}
.pf-audio:hover { color: var(--nf-text); border-color: var(--nf-accent-line); }
.pf-audio[aria-pressed="true"] { color: var(--nf-accent-2); border-color: var(--nf-accent-line); }
.pf-audio-wave { display: inline-flex; align-items: flex-end; gap: 2px; height: 14px; }
.pf-audio-wave i { width: 2.5px; height: 5px; border-radius: 2px; background: currentColor; }
.pf-audio[aria-pressed="true"] .pf-audio-wave i { animation: pf-wave 1.05s var(--pf-ease) infinite; }
.pf-audio-wave i:nth-child(2) { animation-delay: 0.14s; }
.pf-audio-wave i:nth-child(3) { animation-delay: 0.28s; }
.pf-audio-wave i:nth-child(4) { animation-delay: 0.42s; }
@keyframes pf-wave { 0%, 100% { height: 4px; } 50% { height: 14px; } }
.pf-audio-state { font-size: 12px; color: var(--nf-text-mute); }

.pf-hero-foot {
  position: relative; z-index: 2; width: 100%; max-width: var(--pf-wrap); margin: 34px auto 0;
  display: flex; align-items: center; justify-content: space-between; gap: 18px;
}
.pf-hero-dots { display: flex; gap: 9px; }
.pf-dot {
  width: 26px; height: 4px; padding: 0; border: 0; border-radius: 999px;
  background: var(--nf-mute-soft); cursor: pointer;
  transition: background var(--nf-speed) var(--pf-ease), width var(--nf-speed) var(--pf-ease);
}
.pf-dot:hover { background: var(--nf-text-mute); }
.pf-dot.is-on { width: 40px; background: var(--nf-accent-2); }
.pf-scroll-hint { display: inline-flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--nf-text-mute); text-decoration: none; }
.pf-scroll-hint:hover { color: var(--nf-text-dim); }
.pf-scroll-arrow { animation: pf-bob 1.8s var(--pf-ease) infinite; }
@keyframes pf-bob { 0%, 100% { transform: translateY(-2px); } 50% { transform: translateY(3px); } }

/* --- 3. 区块与标题 ------------------------------------------------------ */
.pf-section { padding: 92px 0; }
.pf-section--soft { background: var(--nf-bg-soft); border-top: var(--pf-hair); border-bottom: var(--pf-hair); }
.pf-section-head { max-width: 78ch; margin-bottom: 40px; }
.pf-section-eyebrow { margin: 0 0 10px; font-size: 12px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--nf-accent-2); }
.pf-section-head h2 { margin: 0 0 14px; font-size: clamp(22px, 2.5vw, 34px); line-height: 1.28; }
.pf-section-lead { margin: 0; font-size: 15px; line-height: 1.9; color: var(--nf-text-dim); }
.pf-block-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 12px; margin: 0 0 14px; }
.pf-block-head h3 { margin: 0; font-size: 18px; }
.pf-block-head p { margin: 0; font-size: 13px; color: var(--nf-text-mute); }

/* --- 4. 生态平台矩阵 ---------------------------------------------------- */
.pf-platforms { display: grid; grid-template-columns: repeat(auto-fill, minmax(285px, 1fr)); gap: 18px; }
.pf-plat {
  display: flex; flex-direction: column; gap: 12px; padding: 20px;
  border: var(--pf-hair); border-radius: var(--nf-radius); background: var(--nf-panel);
  transition: transform 320ms var(--pf-ease), border-color 320ms var(--pf-ease), box-shadow 320ms var(--pf-ease);
}
.pf-plat:hover { transform: translateY(-5px); border-color: var(--nf-accent-line); box-shadow: var(--nf-shadow); }
.pf-plat-head { display: flex; align-items: center; gap: 13px; }
.pf-plat-icon {
  width: 46px; height: 46px; flex: none; display: grid; place-items: center; border-radius: 13px;
  font-size: 20px; font-weight: 700; color: var(--nf-accent-2);
  background: var(--nf-accent-soft); border: 1px solid var(--nf-accent-line);
}
.pf-plat.nf-tone-info .pf-plat-icon { color: var(--nf-info); background: var(--nf-info-soft); border-color: var(--nf-info-line); }
.pf-plat.nf-tone-ok .pf-plat-icon { color: var(--nf-ok); background: var(--nf-ok-soft); border-color: var(--nf-ok-line); }
.pf-plat.nf-tone-warn .pf-plat-icon { color: var(--nf-warn); background: var(--nf-warn-soft); border-color: var(--nf-warn-line); }
.pf-plat.nf-tone-muted .pf-plat-icon { color: var(--nf-text-dim); background: var(--nf-mute-soft); border-color: var(--nf-line); }
.pf-plat-title h3 { margin: 0; font-size: 17px; }
.pf-plat-title em { font-style: normal; font-size: 12px; color: var(--nf-text-mute); }
.pf-plat-desc { margin: 0; font-size: 13.5px; line-height: 1.75; color: var(--nf-text-dim); }
.pf-plat-points { margin: 0; padding: 0; list-style: none; display: flex; flex-wrap: wrap; gap: 6px; }
.pf-plat-points li { font-size: 11.5px; padding: 3px 9px; border-radius: 999px; background: var(--nf-mute-soft); color: var(--nf-text-mute); }
.pf-plat-foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: 10px; padding-top: 14px; border-top: var(--pf-hair); }
.pf-plat-dom { font-family: var(--nf-font-mono); font-size: 12px; color: var(--nf-text-mute); }

.pf-eco-strip {
  margin-top: 26px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--nf-line-soft); border: var(--pf-hair); border-radius: var(--nf-radius); overflow: hidden;
}
.pf-eco-item { padding: 18px 20px; background: var(--nf-panel-2); }
.pf-eco-item strong { display: block; font-size: 14.5px; margin-bottom: 5px; }
.pf-eco-item span { font-size: 12.5px; color: var(--nf-text-mute); }

/* 生态数据明细 */
.pf-eco-data { margin-top: 40px; }
.pf-eco-kv { margin: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--nf-line-soft); border: var(--pf-hair); border-radius: var(--nf-radius); overflow: hidden; }
.pf-eco-kv > div { padding: 16px 18px; background: var(--nf-panel); }
.pf-eco-kv dt { font-size: 12.5px; color: var(--nf-text-mute); }
.pf-eco-kv dd { margin: 7px 0 0; font-size: 26px; font-weight: 700; color: var(--nf-accent-2); line-height: 1.1; }
.pf-eco-kv dd em { font-style: normal; font-size: 12.5px; font-weight: 400; color: var(--nf-text-mute); margin-left: 4px; }
.pf-eco-kv dd span { display: block; margin-top: 8px; font-size: 12px; font-weight: 400; line-height: 1.7; color: var(--nf-text-dim); }

/* --- 5. 产品与能力 ------------------------------------------------------ */
.pf-caps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.pf-cap {
  position: relative; padding: 22px 20px 18px; overflow: hidden;
  border: var(--pf-hair); border-radius: var(--nf-radius); background: var(--nf-panel);
  transition: transform 320ms var(--pf-ease), border-color 320ms var(--pf-ease);
}
.pf-cap::after {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 2px;
  background: linear-gradient(90deg, var(--nf-accent), transparent 75%); opacity: 0;
  transition: opacity 320ms var(--pf-ease);
}
.pf-cap:hover { transform: translateY(-4px); border-color: var(--nf-accent-line); }
.pf-cap:hover::after { opacity: 1; }
.pf-cap-icon { display: grid; place-items: center; width: 42px; height: 42px; margin-bottom: 14px; border-radius: 12px; background: var(--nf-accent-soft); border: 1px solid var(--nf-accent-line); }
.pf-cap-icon .pf-glyph { font-style: normal; font-size: 17px; font-weight: 700; color: var(--nf-accent-2); }
.pf-cap.nf-tone-info .pf-cap-icon { background: var(--nf-info-soft); border-color: var(--nf-info-line); }
.pf-cap.nf-tone-info .pf-glyph { color: var(--nf-info); }
.pf-cap.nf-tone-warn .pf-cap-icon { background: var(--nf-warn-soft); border-color: var(--nf-warn-line); }
.pf-cap.nf-tone-warn .pf-glyph { color: var(--nf-warn); }
.pf-cap.nf-tone-ok .pf-cap-icon { background: var(--nf-ok-soft); border-color: var(--nf-ok-line); }
.pf-cap.nf-tone-ok .pf-glyph { color: var(--nf-ok); }
.pf-cap-title { margin: 0 0 9px; font-size: 16.5px; }
.pf-cap-desc { margin: 0 0 16px; font-size: 13px; line-height: 1.8; color: var(--nf-text-dim); }
.pf-cap-metrics { display: flex; gap: 18px; padding-top: 14px; border-top: var(--pf-hair); }
.pf-cap-metric { display: flex; flex-direction: column; gap: 2px; }
.pf-cap-metric-v { font-size: 16px; font-weight: 700; color: var(--nf-text); }
.pf-cap-metric-v i { font-style: normal; font-size: 11.5px; color: var(--nf-text-mute); margin-left: 2px; }
.pf-cap-metric-l { font-size: 11.5px; color: var(--nf-text-mute); }

/* 能力与交付形态表 */
.pf-cap-table { margin-top: 44px; }
.pf-cap-table .pf-table th[scope="row"] { font-weight: 600; }

/* 园区概览 */
.pf-park-stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-bottom: 34px; }
.pf-park-stat { padding: 15px 17px; border: var(--pf-hair); border-radius: var(--nf-radius-sm); background: var(--nf-panel-2); }
.pf-park-stat strong { display: block; font-size: 14.5px; margin-bottom: 6px; }
.pf-park-stat span { font-size: 12px; line-height: 1.7; color: var(--nf-text-mute); }

/* --- 6. 园区相册与灯箱 -------------------------------------------------- */
.pf-album { display: flex; flex-direction: column; gap: 30px; }
.pf-album-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 13px; padding-bottom: 10px; border-bottom: var(--pf-hair); }
.pf-album-head h3 { margin: 0; font-size: 16.5px; }
.pf-album-head span { font-size: 12.5px; color: var(--nf-text-mute); }
.pf-album-head em { margin-left: auto; font-style: normal; font-size: 12px; color: var(--nf-text-mute); }
.pf-album-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(168px, 1fr)); gap: 12px; }
.pf-shot {
  position: relative; display: block; padding: 0; cursor: zoom-in; overflow: hidden;
  border: var(--pf-hair); border-radius: var(--nf-radius-sm); background: var(--nf-panel-2);
  transition: transform 320ms var(--pf-ease), border-color 320ms var(--pf-ease);
}
.pf-shot:hover, .pf-shot:focus-visible { transform: translateY(-3px); border-color: var(--nf-accent-line); }
.pf-media--shot { aspect-ratio: 4 / 3; }
.pf-shot:hover .pf-media .pf-img { transform: scale(1.06); }
.pf-shot-cap {
  display: block; padding: 8px 10px; text-align: left; border-top: var(--pf-hair); background: var(--nf-panel);
  font-size: 11.5px; line-height: 1.5; color: var(--nf-text-mute);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.pf-lb { position: fixed; inset: 0; z-index: 95; display: grid; place-items: center; }
.pf-lb[hidden] { display: none; }
.pf-lb-mask { position: absolute; inset: 0; background: rgba(6, 10, 12, 0.86); backdrop-filter: blur(4px); }
.pf-lb-body { position: relative; z-index: 1; width: min(1180px, 94vw); display: grid; grid-template-columns: 56px 1fr 56px; align-items: center; gap: 8px; }
.pf-lb-fig { margin: 0; min-width: 0; }
.pf-lb-media { aspect-ratio: 16 / 10; max-height: 74vh; border-radius: var(--nf-radius); border: 1px solid var(--nf-line); background: var(--pf-media-bg); }
.pf-media--lb { width: 100%; height: 100%; }
.pf-lb-cap { display: flex; flex-wrap: wrap; gap: 10px; align-items: baseline; margin-top: 12px; font-size: 13px; color: var(--nf-text-dim); }
.pf-lb-title { font-weight: 600; color: var(--nf-text); }
.pf-lb-meta { font-size: 12px; color: var(--nf-text-mute); }
.pf-lb-btn {
  width: 46px; height: 46px; border: 1px solid var(--nf-line); border-radius: 999px;
  background: rgba(20, 28, 33, 0.7); color: var(--nf-text); font-size: 24px; line-height: 1; cursor: pointer;
  transition: background var(--nf-speed) var(--pf-ease), border-color var(--nf-speed) var(--pf-ease);
}
.pf-lb-btn:hover { background: var(--nf-panel-2); border-color: var(--nf-accent-line); }
.pf-lb-close { position: absolute; top: -62px; right: 0; font-size: 22px; }
.pf-lb-count { position: absolute; left: 50%; bottom: -34px; transform: translateX(-50%); font-family: var(--nf-font-mono); font-size: 12.5px; color: var(--nf-text-mute); }
.pf-lb-open { overflow: hidden; }

.pf-devices-block { margin-top: 46px; }
.pf-table caption { text-align: left; }
.pf-table code { font-size: 12px; color: var(--nf-text-dim); }
.pf-table i { font-style: normal; color: var(--nf-text-mute); font-size: 11.5px; }
.pf-dot { display: inline-block; width: 7px; height: 7px; margin-right: 6px; border-radius: 999px; vertical-align: middle; background: var(--nf-text-mute); }
.pf-dot--online { background: var(--nf-ok); box-shadow: 0 0 0 3px var(--nf-ok-soft); }
.pf-dot--offline { background: var(--nf-danger); box-shadow: 0 0 0 3px var(--nf-danger-soft); }
.pf-dot--maintain { background: var(--nf-warn); box-shadow: 0 0 0 3px var(--nf-warn-soft); }

/* --- 7. 实时数据看板 ---------------------------------------------------- */
.pf-dash-bar {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px;
  padding: 14px 18px; margin-bottom: 20px;
  border: var(--pf-hair); border-radius: var(--nf-radius); background: var(--nf-panel);
}
.pf-status { display: inline-flex; align-items: center; gap: 9px; margin: 0; font-size: 13.5px; color: var(--nf-text-dim); }
.pf-status-dot { width: 9px; height: 9px; border-radius: 999px; background: var(--nf-text-mute); animation: pf-pulse 1.6s var(--pf-ease) infinite; }
.pf-status.is-live .pf-status-dot { background: var(--nf-ok); box-shadow: 0 0 0 4px var(--nf-ok-soft); animation: none; }
.pf-status.is-demo .pf-status-dot { background: var(--nf-warn); box-shadow: 0 0 0 4px var(--nf-warn-soft); animation: none; }
@keyframes pf-pulse { 0%, 100% { opacity: 0.4; } 50% { opacity: 1; } }
.pf-dash-actions { display: flex; align-items: center; gap: 10px; }
.pf-dash-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.pf-stat { padding: 20px; border: var(--pf-hair); border-radius: var(--nf-radius); background: var(--nf-panel); }
.pf-stat .nf-stat-value { font-variant-numeric: tabular-nums; }
.pf-telemetry-block { margin-top: 40px; }

/* 指标口径说明列表 */
.pf-dash-notes, .pf-lic-notes, .pf-support { margin-top: 44px; }
.pf-notes-list { margin: 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 24px; }
.pf-notes-list li {
  position: relative; padding: 12px 16px 12px 30px;
  border: var(--pf-hair); border-radius: var(--nf-radius-sm); background: var(--nf-panel);
  font-size: 13px; line-height: 1.8; color: var(--nf-text-dim);
}
.pf-notes-list li::before {
  content: ""; position: absolute; left: 14px; top: 20px;
  width: 6px; height: 6px; border-radius: 999px; background: var(--nf-accent);
}
.pf-notes-list strong { color: var(--nf-text); margin-right: 6px; }
.pf-notes-list code { font-family: var(--nf-font-mono); font-size: 12px; color: var(--nf-accent-2); }

/* --- 8. 发展历程（纵向时间线） ------------------------------------------ */
.pf-timeline { position: relative; margin: 0; padding: 0; list-style: none; }
.pf-timeline::before {
  content: ""; position: absolute; left: 50%; top: 6px; bottom: 6px; width: 2px; transform: translateX(-50%);
  background: linear-gradient(180deg, transparent, var(--nf-line) 8%, var(--nf-line) 92%, transparent);
}
.pf-tl-item { position: relative; width: 50%; padding: 0 42px 30px 0; }
.pf-tl-item:nth-child(even) { margin-left: 50%; padding: 0 0 30px 42px; }
.pf-tl-node {
  position: absolute; top: 22px; right: -7px; width: 14px; height: 14px; border-radius: 999px;
  background: var(--nf-bg-soft); border: 2px solid var(--nf-accent); box-shadow: 0 0 0 4px var(--nf-accent-soft);
}
.pf-tl-item:nth-child(even) .pf-tl-node { right: auto; left: -7px; }
.pf-tl-card {
  padding: 18px 20px; border: var(--pf-hair); border-radius: var(--nf-radius); background: var(--nf-panel);
  transition: border-color 320ms var(--pf-ease), transform 320ms var(--pf-ease);
}
.pf-tl-card:hover { border-color: var(--nf-accent-line); transform: translateY(-3px); }
.pf-tl-year { font-family: var(--nf-font-mono); font-size: 13px; letter-spacing: 0.08em; color: var(--nf-accent-2); margin-bottom: 6px; }
.pf-tl-title { margin: 0 0 8px; font-size: 16px; }
.pf-tl-desc { margin: 0; font-size: 13px; line-height: 1.8; color: var(--nf-text-dim); }

/* --- 9. 授权与防伪查询 -------------------------------------------------- */
.pf-lic-grid { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: 18px; align-items: start; }
.pf-lic-panel { padding: 24px; border: var(--pf-hair); border-radius: var(--nf-radius); background: var(--nf-panel); }
.pf-lic-panel-title { margin: 0 0 16px; font-size: 17px; }
.pf-label { display: block; margin-bottom: 8px; font-size: 13px; color: var(--nf-text-dim); }
.pf-lic-input-row { display: flex; gap: 10px; }
.pf-lic-input-row .nf-input { flex: 1 1 auto; font-family: var(--nf-font-mono); letter-spacing: 0.04em; }
.pf-lic-samples { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 18px; font-size: 12px; color: var(--nf-text-mute); }
.pf-lic-sample {
  padding: 4px 10px; border: var(--pf-hair); border-radius: 999px; background: var(--nf-panel-2);
  color: var(--nf-text-dim); font-family: var(--nf-font-mono); font-size: 11.5px; cursor: pointer;
  transition: color var(--nf-speed) var(--pf-ease), border-color var(--nf-speed) var(--pf-ease);
}
.pf-lic-sample:hover { color: var(--nf-text); border-color: var(--nf-accent-line); }
.pf-lic-result { margin-top: 22px; padding: 18px; border: var(--pf-hair); border-radius: var(--nf-radius); background: var(--nf-panel-2); }
.pf-lic-result.is-found { border-color: var(--nf-ok-line); }
.pf-lic-result.is-miss { border-color: var(--nf-warn-line); }
.pf-lic-head { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-bottom: 14px; }
.pf-lic-head h3 { margin: 0; font-size: 15px; }
.pf-lic-kv { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px 20px; }
.pf-lic-kv dt { font-size: 12px; color: var(--nf-text-mute); }
.pf-lic-kv dd { margin: 4px 0 0; font-size: 14px; }
.pf-lic-kv code { font-family: var(--nf-font-mono); font-size: 13px; }
.pf-lic-miss { margin: 0; font-size: 13.5px; line-height: 1.8; color: var(--nf-text-dim); }

.pf-seal { display: grid; place-items: center; padding: 16px; margin-bottom: 12px; border: var(--pf-hair); border-radius: var(--nf-radius); background: var(--nf-panel-2); }
.pf-seal canvas { display: block; max-width: 100%; height: auto; border-radius: 4px; image-rendering: pixelated; box-shadow: 0 2px 10px rgba(0, 0, 0, 0.25); }
.pf-seal-meta { margin: 0 0 12px; font-family: var(--nf-font-mono); font-size: 12px; color: var(--nf-text-mute); text-align: center; }

/* --- 10. 合作与支持 ----------------------------------------------------- */
.pf-contact-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.pf-contact-card, .pf-partners-card { padding: 24px; border: var(--pf-hair); border-radius: var(--nf-radius); background: var(--nf-panel); }
.pf-contact-card h3, .pf-partners-head h3 { margin: 0 0 14px; font-size: 17px; }
.pf-contact-card a { color: var(--nf-accent-2); text-decoration: none; }
.pf-contact-card a:hover { text-decoration: underline; }
.pf-channels { margin: 20px 0 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 10px; }
.pf-channel {
  display: flex; align-items: center; gap: 13px; padding: 13px 15px;
  border: var(--pf-hair); border-radius: var(--nf-radius-sm); background: var(--nf-panel-2);
}
.pf-channel-icon {
  width: 34px; height: 34px; flex: none; display: grid; place-items: center; border-radius: 10px;
  background: var(--nf-accent-soft); color: var(--nf-accent-2); font-size: 15px;
}
.pf-channel-body { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.pf-channel-body strong { font-size: 14px; }
.pf-channel-body em { font-style: normal; font-size: 12px; color: var(--nf-text-mute); }
.pf-channel .nf-btn { margin-left: auto; flex: none; }

.pf-partners-head { display: flex; align-items: center; gap: 12px; }
.pf-partners-head h3 { margin: 0; }
.pf-partners-head .nf-tag { margin-left: auto; }
.pf-partners { margin: 16px 0 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.pf-partner {
  display: flex; align-items: center; gap: 12px; padding: 12px 14px; color: inherit; text-decoration: none;
  border: var(--pf-hair); border-radius: var(--nf-radius-sm); background: var(--nf-panel-2);
  transition: border-color 300ms var(--pf-ease), transform 300ms var(--pf-ease);
}
.pf-partner:hover { border-color: var(--nf-accent-line); transform: translateX(3px); }
.pf-partner-mark {
  width: 32px; height: 32px; flex: none; display: grid; place-items: center; border-radius: 9px;
  background: var(--nf-mute-soft); color: var(--nf-text-dim); font-weight: 700; font-size: 14px;
}
.pf-partner-body { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.pf-partner-body strong { font-size: 13.5px; }
.pf-partner-body em { font-style: normal; font-size: 12px; color: var(--nf-text-mute); }
.pf-partner-go { margin-left: auto; color: var(--nf-text-mute); font-size: 13px; }

/* --- 11. 页脚 ----------------------------------------------------------- */
.pf-foot { border-top: var(--pf-hair); background: var(--nf-bg-soft); padding: 54px 0 22px; }
.pf-foot-inner { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 36px; }
.pf-foot-brand { display: flex; gap: 14px; }
.pf-foot-brand strong { font-size: 15.5px; }
.pf-foot-note { margin: 9px 0 0; max-width: 52ch; font-size: 13px; line-height: 1.8; color: var(--nf-text-dim); }
.pf-foot-meta { margin: 14px 0 0; font-size: 12px; color: var(--nf-text-mute); line-height: 1.9; }
.pf-foot-sep { margin: 0 7px; opacity: 0.6; }
.pf-foot-title { margin: 0 0 14px; font-size: 14px; color: var(--nf-text-dim); letter-spacing: 0.08em; }
.pf-sitemap { margin: 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 8px 18px; }
.pf-sitemap a {
  display: flex; flex-direction: column; padding: 8px 10px; border-radius: var(--nf-radius-sm);
  color: var(--nf-text-dim); text-decoration: none;
  transition: background var(--nf-speed) var(--pf-ease), color var(--nf-speed) var(--pf-ease);
}
.pf-sitemap a:hover { background: var(--nf-mute-soft); color: var(--nf-text); }
.pf-sitemap-cn { font-size: 11.5px; color: var(--nf-text-mute); }
.pf-sitemap-dom { font-family: var(--nf-font-mono); font-size: 11px; color: var(--nf-text-mute); }
.pf-foot-extra { margin-top: 14px; font-size: 13px; }
.pf-foot-extra a { color: var(--nf-accent-2); text-decoration: none; }
.pf-foot-extra a:hover { text-decoration: underline; }
.pf-foot-tail {
  max-width: var(--pf-wrap); margin: 34px auto 0; padding: 16px 28px 0; border-top: var(--pf-hair);
  font-size: 12px; color: var(--nf-text-mute); text-align: center;
}
.pf-noscript { margin: 0; padding: 14px 20px; background: var(--nf-warn-soft); color: var(--nf-text); font-size: 13px; text-align: center; border-top: 1px solid var(--nf-warn-line); }

/* --- 12. 响应式：1440 / 1024 / 768 / 375 -------------------------------- */
@media (max-width: 1440px) {
  .pf-wrap { max-width: 1180px; }
  .pf-nav-inner { padding: 0 22px; }
  .pf-cta { padding: 7px 11px; font-size: 12.5px; }
}
@media (max-width: 1024px) {
  .pf-body { --pf-nav-h: 62px; }
  .pf-section { padding: 72px 0; }
  .pf-nav-links a { padding: 8px 9px; font-size: 13px; }
  .pf-theme-text { display: none; }
  .pf-caps { grid-template-columns: repeat(2, 1fr); }
  .pf-dash-cards { grid-template-columns: repeat(2, 1fr); }
  .pf-eco-strip { grid-template-columns: repeat(2, 1fr); }
  .pf-lic-grid { grid-template-columns: 1fr; }
  .pf-contact-grid { grid-template-columns: 1fr; }
  .pf-foot-inner { grid-template-columns: 1fr; gap: 26px; }
  .pf-hero-facts { gap: 22px; }
  .pf-fact-value { font-size: 26px; }
  .pf-eco-kv { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pf-park-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 768px) {
  .pf-wrap { padding: 0 16px; }
  .pf-nav-inner { padding: 0 16px; gap: 10px; }
  .pf-nav-toggle { display: flex; order: 3; }
  .pf-nav-cta { display: none; }
  .pf-nav-links {
    position: absolute; left: 12px; right: 12px; top: calc(var(--pf-nav-h) - 2px);
    flex-direction: column; align-items: stretch; gap: 2px; padding: 10px; display: none;
    border: var(--pf-hair); border-radius: var(--nf-radius); background: var(--nf-panel); box-shadow: var(--nf-shadow);
  }
  .pf-nav-links.open { display: flex; }
  .pf-nav-links a { padding: 11px 12px; font-size: 14px; }
  .pf-nav-links a.active::after { display: none; }
  .pf-brand-text em { display: none; }
  .pf-hero { padding-top: calc(var(--pf-nav-h) + 28px); }
  .pf-hero-veil { background: linear-gradient(180deg, rgba(9, 14, 17, 0.9) 0%, rgba(9, 14, 17, 0.72) 50%, rgba(9, 14, 17, 0.94) 100%); }
  .pf-hero-title { max-width: none; }
  .pf-hero-actions .nf-btn.lg { flex: 1 1 auto; text-align: center; }
  .pf-slide-cap { display: none; }
  .pf-hero-foot { flex-direction: column-reverse; align-items: flex-start; gap: 14px; margin-top: 26px; }
  .pf-section { padding: 56px 0; }
  .pf-platforms, .pf-caps, .pf-dash-cards, .pf-eco-strip,
  .pf-eco-kv, .pf-park-stats, .pf-notes-list { grid-template-columns: 1fr; }
  .pf-album-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 10px; }
  .pf-timeline::before { left: 7px; }
  .pf-tl-item, .pf-tl-item:nth-child(even) { width: 100%; margin-left: 0; padding: 0 0 22px 30px; }
  .pf-tl-node, .pf-tl-item:nth-child(even) .pf-tl-node { left: 0; right: auto; }
  .pf-lb-body { grid-template-columns: 1fr; width: min(640px, 92vw); }
  .pf-lb-btn { width: 40px; height: 40px; font-size: 20px; }
  .pf-lb-body > .pf-lb-btn[data-act="prev"],
  .pf-lb-body > .pf-lb-btn[data-act="next"] { position: absolute; bottom: -56px; top: auto; }
  .pf-lb-body > .pf-lb-btn[data-act="prev"] { left: 0; }
  .pf-lb-body > .pf-lb-btn[data-act="next"] { right: 0; }
  .pf-lb-close { top: -50px; right: 0; }
  .pf-lb-media { aspect-ratio: 4 / 3; max-height: 62vh; }
  .pf-lb-count { bottom: -30px; }
  .pf-table thead { display: none; }
  .pf-table tbody tr { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 12px; padding: 12px 0; border-bottom: var(--pf-hair); }
  .pf-table tbody th, .pf-table tbody td { display: block; padding: 0; border: 0 !important; text-align: left; }
  .pf-table tbody th[data-label]::before,
  .pf-table tbody td[data-label]::before { content: attr(data-label) "："; font-size: 11px; color: var(--nf-text-mute); margin-right: 4px; }
  .pf-table tbody th { font-weight: 600; }
  .pf-lic-panel, .pf-contact-card, .pf-partners-card { padding: 18px; }
  .pf-lic-input-row { flex-direction: column; }
  .pf-foot { padding: 40px 0 18px; }
  .pf-foot-tail { padding: 14px 16px 0; }
}
@media (max-width: 375px) {
  .pf-wrap, .pf-nav-inner { padding: 0 12px; }
  .pf-brand-mark { width: 34px; height: 34px; font-size: 16px; }
  .pf-brand-text strong { font-size: 15.5px; }
  .pf-hero-title { font-size: 27px; }
  .pf-hero-lead { font-size: 13.5px; }
  .pf-hero-actions { gap: 9px; }
  .pf-hero-actions .nf-btn.lg { padding: 10px 14px; font-size: 13.5px; }
  .pf-hero-facts { gap: 14px; margin: 26px 0 18px; }
  .pf-fact-value { font-size: 22px; }
  .pf-section { padding: 44px 0; }
  .pf-section-head { margin-bottom: 26px; }
  .pf-album-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .pf-shot-cap { font-size: 11px; padding: 6px 8px; }
  .pf-plat, .pf-cap, .pf-lic-panel, .pf-contact-card, .pf-partners-card { padding: 15px; }
  .pf-plat-foot { flex-direction: column; align-items: stretch; }
  .pf-cap-metrics { gap: 12px; flex-wrap: wrap; }
  .pf-table tbody tr { grid-template-columns: 1fr; }
  .pf-sitemap { grid-template-columns: 1fr; }
  .pf-channel { flex-wrap: wrap; }
  .pf-channel .nf-btn { margin-left: 0; width: 100%; text-align: center; }
}

/* --- 13. 动效降级：尊重 prefers-reduced-motion --------------------------- */
@media (prefers-reduced-motion: reduce) {
  .pf-reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  .pf-slide { transition: opacity 200ms linear !important; transform: none !important; }
  .pf-slide.is-on { transform: none !important; }
  .pf-scroll-arrow, .pf-audio-wave i, .pf-status-dot { animation: none !important; }
  .pf-plat:hover, .pf-cap:hover, .pf-shot:hover, .pf-shot:focus-visible,
  .pf-tl-card:hover, .pf-partner:hover { transform: none !important; }
  .pf-media .pf-img, .pf-nav, .pf-skip { transition: none !important; }
}