/*!
 * 耀琰科技官网样式（参考东华软件 dhcc.com.cn 的视觉风格自主实现）
 * 结构：1 变量与基础 / 2 页头与菜单 / 3 页脚 / 4 首页分屏 / 5 内页组件 / 6 响应式 / 7 动效偏好
 */

/* ========== 1. 变量与基础 ========== */
:root {
  --c-primary: #1f5fd6;
  --c-primary-dark: #154aa8;
  --c-primary-light: #4f8bff;
  --c-navy: #0a1e42;
  --c-navy-2: #13366e;
  --c-sky: #a5c7ff;
  --c-accent: #f2701d;
  --c-accent-light: #ff9a3d;
  --c-text: #1f2329;
  --c-text-2: #555c68;
  --c-muted: #8a93a3;
  --c-line: #e5e8ef;
  --c-bg-gray: #f5f7fb;
  --c-footer: #1c1f26;
  --c-footer-2: #15171c;
  --font: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", "Source Han Sans SC", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --font-num: "DIN Alternate", "DIN", "Bahnschrift", "Roboto Condensed", "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  --header-h: 90px;
  --maxw: 1440px;
  --gutter: 40px;
  --ease: cubic-bezier(.22, .61, .36, 1);
  --shadow: 0 14px 34px rgba(10, 30, 66, .1);
  --edge: calc((100% - min(100% - 2 * var(--gutter), var(--maxw))) / 2);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; font: 16px/1.75 var(--font); color: var(--c-text); background: #fff; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; overflow-x: hidden; }
img, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration: none; transition: color .3s var(--ease); }
a:hover { color: var(--c-primary); }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
h1, h2, h3, h4, h5, h6, p, ul, ol, dl, dd, figure { margin: 0; }
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.4; }
ul, ol { padding: 0; list-style: none; }
:focus-visible { outline: 2px solid var(--c-accent); outline-offset: 2px; }
::selection { background: var(--c-primary); color: #fff; }
.icon { width: 1em; height: 1em; flex: none; }
.container { width: min(100% - 2 * var(--gutter), var(--maxw)); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -60px; z-index: 1000; background: var(--c-primary); color: #fff; padding: 8px 16px; border-radius: 4px; }
.skip-link:focus { top: 12px; color: #fff; }
html.nav-open { overflow: hidden; }

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: #f1f3f7; }
::-webkit-scrollbar-thumb { background: var(--c-primary); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 46px; padding: 0 26px; border-radius: 23px; font-size: 15px; letter-spacing: .5px; white-space: nowrap; transition: background-color .3s var(--ease), color .3s, border-color .3s, transform .3s var(--ease), box-shadow .3s; }
.btn .icon { width: 18px; height: 18px; }
.btn-primary { background: var(--c-primary); color: #fff; box-shadow: 0 8px 20px rgba(31, 95, 214, .25); }
.btn-primary:hover { background: var(--c-primary-dark); color: #fff; transform: translateY(-2px); }
.btn-ghost { border: 1px solid rgba(255, 255, 255, .6); color: #fff; }
.btn-ghost:hover { background: #fff; border-color: #fff; color: var(--c-primary); }
.btn-ghost-dark { border: 1px solid var(--c-line); color: var(--c-text); background: #fff; }
.btn-ghost-dark:hover { border-color: var(--c-primary); color: var(--c-primary); }

/* ========== 2. 页头与菜单 ========== */
.site-header {
  --hdr-fg: var(--c-text);
  --hdr-bg: #fff;
  --hdr-line: var(--c-primary);
  --hdr-hover: var(--c-primary);
  --hdr-shadow: 0 3px 14px rgba(10, 30, 66, .07);
  position: fixed; z-index: 100; left: 0; right: 0; top: 0; height: var(--header-h);
  color: var(--hdr-fg); background: var(--hdr-bg); box-shadow: var(--hdr-shadow);
  transition: background-color .4s var(--ease), box-shadow .4s, color .4s, transform .45s var(--ease);
}
.site-header.is-transparent { --hdr-fg: #fff; --hdr-bg: transparent; --hdr-line: var(--c-accent); --hdr-hover: #fff; --hdr-shadow: none; }
.site-header.is-transparent.on-light { --hdr-fg: var(--c-text); --hdr-line: var(--c-primary); --hdr-hover: var(--c-primary); }
.site-header.is-transparent.is-scrolled { --hdr-fg: var(--c-text); --hdr-bg: #fff; --hdr-line: var(--c-primary); --hdr-hover: var(--c-primary); --hdr-shadow: 0 3px 14px rgba(10, 30, 66, .07); }
.site-header.is-transparent:hover,
.site-header.is-transparent:focus-within,
.site-header.is-transparent.is-open { --hdr-fg: var(--c-text); --hdr-bg: #fff; --hdr-line: var(--c-primary); --hdr-hover: var(--c-primary); --hdr-shadow: 0 3px 14px rgba(10, 30, 66, .07); }
.site-header.is-hidden { transform: translateY(-100%); }
.page-inner main { padding-top: var(--header-h); }

.header-bar { height: 100%; display: flex; align-items: center; padding: 0 clamp(16px, 4.2vw, 90px); }
.brand { display: flex; align-items: center; gap: 12px; color: inherit; flex: none; }
.brand:hover { color: inherit; }
.brand-logo { width: 44px; height: 44px; }
.brand-name strong { display: block; font-size: 23px; line-height: 1.15; letter-spacing: 3px; }
.brand-name small { display: block; font: 600 10px/1.4 var(--font-num); letter-spacing: 1.6px; opacity: .65; margin-top: 3px; }

.main-nav { height: 100%; margin-left: clamp(24px, 4vw, 90px); }
.nav-list { display: flex; height: 100%; }
.nav-item { position: relative; display: flex; align-items: center; }
.nav-item.has-mega { position: static; }
.nav-link { --pad: clamp(12px, 1.45vw, 30px); position: relative; display: flex; align-items: center; gap: 4px; height: 100%; padding: 0 var(--pad); font-size: 17px; letter-spacing: 1px; color: inherit; white-space: nowrap; }
.nav-link::after { content: ""; position: absolute; left: 50%; right: 50%; bottom: 0; height: 2px; background: var(--hdr-line); transition: left .3s var(--ease), right .3s var(--ease); }
.nav-item:hover > .nav-link,
.nav-item:focus-within > .nav-link,
.nav-item.is-current > .nav-link { color: var(--hdr-hover); }
.nav-item:hover > .nav-link::after,
.nav-item:focus-within > .nav-link::after,
.nav-item.is-current > .nav-link::after { left: var(--pad); right: var(--pad); }
.nav-caret { width: 14px; height: 14px; transition: transform .3s var(--ease); }
.nav-item:hover .nav-caret { transform: rotate(180deg); }

.header-tools { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.header-tel { display: flex; align-items: center; gap: 8px; font: 600 20px/1 var(--font-num); letter-spacing: 1px; color: inherit; }
.header-tel .icon { width: 20px; height: 20px; color: var(--c-accent); }
.header-tel:hover { color: var(--hdr-hover); }
.nav-toggle { display: none; position: relative; width: 44px; height: 44px; }
.nav-toggle span { position: absolute; left: 10px; right: 10px; height: 2px; border-radius: 2px; background: currentColor; transition: transform .3s, opacity .3s; }
.nav-toggle span:nth-child(1) { top: 14px; }
.nav-toggle span:nth-child(2) { top: 21px; }
.nav-toggle span:nth-child(3) { top: 28px; }

.mega { position: absolute; left: 0; right: 0; top: 100%; background: #fff; color: var(--c-text); border-top: 1px solid var(--c-line); box-shadow: 0 24px 40px rgba(10, 30, 66, .12); opacity: 0; visibility: hidden; transform: translateY(-8px); transition: opacity .3s, transform .3s var(--ease), visibility 0s linear .3s; }
.nav-item:hover > .mega, .nav-item:focus-within > .mega { opacity: 1; visibility: visible; transform: none; transition-delay: 0s; }
.mega-inner { display: grid; grid-template-columns: 300px 1fr; gap: 48px; padding: 34px 0 40px; }
.mega-side { position: relative; overflow: hidden; padding: 30px 28px; border-radius: 4px; color: #fff; background: linear-gradient(155deg, var(--c-navy) 0%, var(--c-navy-2) 55%, var(--c-primary) 140%); }
.mega-side::after { content: ""; position: absolute; right: -60px; bottom: -60px; width: 180px; height: 180px; border-radius: 50%; border: 30px solid rgba(255, 255, 255, .05); }
.mega-en { font: 600 12px/1 var(--font-num); letter-spacing: 3px; opacity: .55; }
.mega-side h3 { font-size: 26px; margin: 12px 0; letter-spacing: 2px; }
.mega-side p { font-size: 14px; line-height: 1.85; opacity: .78; }
.mega-all { position: relative; z-index: 1; display: inline-flex; align-items: center; gap: 6px; margin-top: 22px; padding-bottom: 4px; font-size: 14px; color: #fff; border-bottom: 1px solid rgba(255, 255, 255, .4); }
.mega-all:hover { color: var(--c-accent-light); border-color: var(--c-accent-light); }
.mega-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 6px 24px; align-content: start; }
.mega-grid--3 { grid-template-columns: repeat(3, 1fr); }
.mega-link { display: flex; gap: 16px; padding: 16px 18px; border-radius: 4px; color: var(--c-text); transition: background-color .3s; }
.mega-link:hover { background: var(--c-bg-gray); color: var(--c-text); }
.mega-ico { width: 46px; height: 46px; flex: none; display: grid; place-items: center; border-radius: 50%; background: rgba(31, 95, 214, .08); color: var(--c-primary); transition: background-color .3s, color .3s; }
.mega-ico .icon { width: 24px; height: 24px; }
.mega-link:hover .mega-ico { background: var(--c-primary); color: #fff; }
.mega-txt { min-width: 0; }
.mega-txt strong { display: block; font-size: 17px; line-height: 1.5; }
.mega-link:hover .mega-txt strong { color: var(--c-primary); }
.mega-txt small { display: block; font: 12px/1.6 var(--font-num); letter-spacing: .5px; color: var(--c-muted); }
.mega-txt em { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-top: 6px; font-style: normal; font-size: 13px; line-height: 1.7; color: var(--c-text-2); }

.drop { position: absolute; left: 50%; top: 100%; min-width: 150px; padding: 8px 0; background: #fff; border-top: 2px solid var(--c-primary); box-shadow: 0 16px 30px rgba(10, 30, 66, .12); opacity: 0; visibility: hidden; transform: translate(-50%, -8px); transition: opacity .3s, transform .3s var(--ease), visibility 0s linear .3s; }
.nav-item:hover > .drop, .nav-item:focus-within > .drop { opacity: 1; visibility: visible; transform: translate(-50%, 0); transition-delay: 0s; }
.drop a { display: block; padding: 10px 24px; font-size: 15px; text-align: center; white-space: nowrap; color: var(--c-text); }
.drop a:hover { background: var(--c-bg-gray); color: var(--c-primary); }

.mobile-nav[hidden] { display: none; }
.mobile-nav { position: fixed; inset: 0; z-index: 200; }
.mobile-nav-backdrop { position: absolute; inset: 0; background: rgba(5, 15, 35, .6); opacity: 0; transition: opacity .35s; }
.mobile-nav-panel { position: absolute; top: 0; right: 0; bottom: 0; width: min(86vw, 380px); display: flex; flex-direction: column; overflow-y: auto; background: var(--c-navy); color: #fff; transform: translateX(100%); transition: transform .35s var(--ease); }
.mobile-nav.is-open .mobile-nav-backdrop { opacity: 1; }
.mobile-nav.is-open .mobile-nav-panel { transform: none; }
.mobile-nav-head { display: flex; justify-content: space-between; align-items: center; padding: 14px 16px 14px 24px; border-bottom: 1px solid rgba(255, 255, 255, .1); }
.mobile-nav-title { font-size: 18px; letter-spacing: 2px; }
.mobile-nav-close { width: 44px; height: 44px; display: grid; place-items: center; }
.mobile-nav-close .icon { width: 26px; height: 26px; }
.mobile-menu > li { border-bottom: 1px solid rgba(255, 255, 255, .08); }
.mm-link { display: flex; justify-content: space-between; align-items: center; padding: 15px 24px; font-size: 17px; color: #fff; cursor: pointer; list-style: none; }
.mm-link::-webkit-details-marker { display: none; }
.mm-link.is-current { color: var(--c-accent-light); }
.mm-link:hover { color: var(--c-accent-light); }
.mm-caret { width: 18px; height: 18px; transition: transform .3s; }
details[open] > .mm-link .mm-caret { transform: rotate(180deg); }
.mm-sub { padding-bottom: 10px; background: rgba(0, 0, 0, .18); }
.mm-sub a { display: block; padding: 10px 24px 10px 40px; font-size: 15px; color: rgba(255, 255, 255, .75); }
.mm-sub a:hover { color: #fff; }
.mobile-nav-contact { display: grid; gap: 12px; margin-top: auto; padding: 24px; font-size: 15px; }
.mobile-nav-contact a { display: flex; align-items: center; gap: 10px; color: rgba(255, 255, 255, .85); }
.mobile-nav-contact .icon { width: 18px; height: 18px; color: var(--c-accent); }

/* ========== 3. 页脚 ========== */
.site-footer { position: relative; overflow: hidden; background: var(--c-footer); color: rgba(255, 255, 255, .6); }
.site-footer::before { content: ""; position: absolute; right: -10%; top: -40%; width: 60%; height: 120%; background: radial-gradient(closest-side, rgba(31, 95, 214, .16), transparent); pointer-events: none; }
.site-footer a { color: rgba(255, 255, 255, .6); }
.site-footer a:hover { color: #fff; }
.footer-top { position: relative; display: flex; justify-content: space-between; align-items: flex-end; gap: 40px; padding: 64px 0 30px; border-bottom: 1px solid rgba(255, 255, 255, .1); }
.footer-contact h5 { font-size: 20px; font-weight: 400; color: rgba(255, 255, 255, .78); }
.footer-tel { display: block; margin: 4px 0 10px; font: 700 clamp(32px, 3vw, 50px)/1.3 var(--font-num); letter-spacing: 2px; color: #fff !important; }
.footer-contact p { font-size: 14px; line-height: 1.9; }
.footer-brand { display: flex; align-items: center; gap: 16px; }
.footer-brand img { width: 56px; height: 56px; }
.footer-brand strong { display: block; font-size: 18px; color: #fff; letter-spacing: 1px; }
.footer-brand p { font-size: 14px; }
.footer-values { font-size: 13px !important; letter-spacing: 1px; color: rgba(255, 255, 255, .42); }
.footer-nav { position: relative; display: grid; grid-template-columns: repeat(4, auto); justify-content: space-between; gap: 32px; padding: 36px 0 44px; }
.footer-nav dt { position: relative; margin-bottom: 22px; font-size: 17px; color: #fff; }
.footer-nav dt a { color: #fff; }
.footer-nav dt::after { content: ""; position: absolute; left: 0; bottom: -10px; width: 16px; height: 2px; background: var(--c-accent); }
.footer-nav dd + dt { margin-top: 26px; }
.footer-nav dd { font-size: 14px; line-height: 2.3; }
.footer-bottom { position: relative; padding: 18px 0; background: var(--c-footer-2); font-size: 13px; line-height: 1.9; }
.footer-bottom-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 24px; }
.footer-beian a + a { margin-left: 16px; }
.footer-links i { margin: 0 10px; font-style: normal; opacity: .4; }

.back-top { position: fixed; z-index: 90; right: 24px; bottom: 28px; width: 48px; height: 48px; display: grid; place-items: center; border-radius: 50%; background: var(--c-primary); color: #fff; box-shadow: 0 8px 20px rgba(31, 95, 214, .35); opacity: 0; visibility: hidden; transform: translateY(16px); transition: opacity .35s, transform .35s var(--ease), visibility 0s linear .35s, background-color .3s; }
.back-top.is-visible { opacity: 1; visibility: visible; transform: none; transition-delay: 0s; }
.back-top:hover { background: var(--c-accent); }
.icon-up { width: 22px; height: 22px; transform: rotate(-90deg); }

/* ========== 4. 首页分屏 ========== */
/* 默认（移动端 / 矮屏）为自然流式布局；大屏下启用整屏吸附（见下方 FP 媒体查询） */
.page-home main { padding-top: 0; }
.fp-section { position: relative; overflow: hidden; }

/* --- 4.1 Hero 轮播 --- */
.hero { height: 100vh; height: 100svh; min-height: 540px; background: var(--c-navy); color: #fff; --hero-interval: 7s; }
.hero-slides, .hero-slide { position: absolute; inset: 0; }
.hero-slide { opacity: 0; visibility: hidden; transition: opacity 1s var(--ease), visibility 0s linear 1s; }
.hero-slide.is-active { z-index: 1; opacity: 1; visibility: visible; transition-delay: 0s; }
.hero-bg { position: absolute; inset: 0; background: var(--c-navy) center / cover no-repeat; transform: scale(1.12); }
.hero-slide.is-active .hero-bg { animation: kenburns 8s linear both; }
.hero-slide.is-leaving .hero-bg { animation: kenburns 8s linear both; animation-play-state: paused; }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(6, 18, 42, .86) 0%, rgba(6, 18, 42, .55) 46%, rgba(6, 18, 42, .12) 100%), linear-gradient(0deg, rgba(6, 18, 42, .65) 0%, transparent 42%); }
.hero-text { position: relative; z-index: 2; height: 100%; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; padding-top: var(--header-h); padding-bottom: 60px; }
.hero-kicker { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; font-size: clamp(14px, 1.05vw, 18px); letter-spacing: 4px; color: var(--c-accent-light); }
.hero-kicker::before { content: ""; width: 40px; height: 2px; background: currentColor; }
.hero-title { max-width: 15em; font-size: clamp(32px, 4.4vw, 76px); line-height: 1.2; letter-spacing: 4px; text-shadow: 1px 1px 14px rgba(0, 0, 0, .35); }
.hero-desc { max-width: 38em; margin-top: 22px; font-size: clamp(15px, 1.25vw, 22px); line-height: 1.8; color: rgba(255, 255, 255, .88); }
.hero-link { display: inline-flex; align-items: center; gap: 10px; height: 50px; margin-top: 40px; padding: 0 30px; border: 1px solid rgba(255, 255, 255, .55); border-radius: 25px; color: #fff; font-size: 16px; transition: background-color .3s, border-color .3s; }
.hero-link .icon { width: 18px; height: 18px; transition: transform .3s; }
.hero-link:hover { background: var(--c-accent); border-color: var(--c-accent); color: #fff; }
.hero-link:hover .icon { transform: translateX(4px); }
.hero-slide.is-active .hero-text > * { animation: heroIn .9s var(--ease) both; }
.hero-slide.is-active .hero-text > :nth-child(2) { animation-delay: .12s; }
.hero-slide.is-active .hero-text > :nth-child(3) { animation-delay: .24s; }
.hero-slide.is-active .hero-text > :nth-child(4) { animation-delay: .36s; }

.hero-pager { position: absolute; z-index: 3; right: var(--edge); bottom: 8vh; display: flex; align-items: center; gap: 22px; }
.hero-count { font: 600 15px/1 var(--font-num); letter-spacing: 1px; color: rgba(255, 255, 255, .6); white-space: nowrap; }
.hero-count b { margin-right: 6px; font-size: 30px; color: #fff; }
.hero-dots { display: flex; gap: 10px; }
.hero-dot { position: relative; width: 46px; height: 26px; }
.hero-dot i { position: absolute; left: 0; right: 0; top: 12px; height: 2px; overflow: hidden; background: rgba(255, 255, 255, .3); }
.hero-dot b { position: absolute; inset: 0; background: #fff; transform: scaleX(0); transform-origin: left center; }
.hero-dot.is-active b { animation: dotProgress var(--hero-interval) linear forwards; }
.hero.is-paused .hero-dot.is-active b,
.hero.is-offscreen .hero-dot.is-active b { animation-play-state: paused; }
.hero-dot:hover i { background: rgba(255, 255, 255, .6); }

.scroll-hint { position: absolute; z-index: 3; left: var(--edge); bottom: calc(8vh + 26px); width: 60px; height: 60px; color: #fff; }
.scroll-hint:hover { color: #fff; }
.scroll-hint-ring { position: absolute; inset: 0; border-radius: 50%; border: 1px solid rgba(255, 255, 255, .3); border-top: 2px solid #fff; animation: spin 3s linear infinite; }
.scroll-hint i { position: absolute; left: 50%; top: 12px; width: 1px; height: 0; background: #fff; animation: dropLine 1.8s ease-in-out infinite; }
.scroll-hint i::after { content: ""; position: absolute; left: -4px; bottom: -1px; border: 4.5px solid transparent; border-top: 6px solid #fff; border-bottom: 0; }
.scroll-hint em { position: absolute; left: 50%; top: 100%; margin-top: 12px; transform: translateX(-50%); font-style: normal; font-size: 13px; letter-spacing: 1px; white-space: nowrap; color: rgba(255, 255, 255, .85); }

/* --- 4.2 关于耀琰（大数字） --- */
.about-sec { padding: 80px 0 56px; color: #fff; background: radial-gradient(ellipse 60% 70% at 78% 30%, rgba(31, 95, 214, .38), transparent 70%), radial-gradient(ellipse 50% 60% at 8% 95%, rgba(242, 112, 29, .14), transparent 70%), linear-gradient(160deg, #071430 0%, #0b2552 60%, #091b3c 100%); }
.about-sec::before, .sec-dark::before { content: ""; position: absolute; inset: 0; pointer-events: none; background-image: linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px); background-size: 64px 64px; -webkit-mask-image: radial-gradient(ellipse at 60% 40%, #000 20%, transparent 75%); mask-image: radial-gradient(ellipse at 60% 40%, #000 20%, transparent 75%); }
.net-canvas { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.about-body { position: relative; z-index: 2; }
.about-kicker { font-size: 16px; font-weight: 600; letter-spacing: 2px; color: var(--c-accent-light); }
.about-title { margin: 14px 0 24px; font-size: clamp(32px, 3.2vw, 54px); letter-spacing: 3px; }
.about-desc p { font-size: 16px; line-height: 2; color: rgba(255, 255, 255, .82); }
.about-bignum, .stat-ctrl, .stat-labels { display: none; }
.about-stats { position: relative; z-index: 3; margin-top: 44px; }
.stat-slider { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 20px; }
.stat-item { padding-left: 16px; border-left: 2px solid var(--c-accent); }
.stat-num { font: 700 44px/1 var(--font-num); letter-spacing: 1px; white-space: nowrap; }
.stat-num i { font-style: normal; }
.stat-num em { margin-left: 6px; font: 400 16px/1 var(--font); }
.stat-item strong { display: block; margin-top: 12px; font-size: 15px; font-weight: 400; letter-spacing: 1px; color: rgba(255, 255, 255, .85); }

.ring-btn { position: relative; display: inline-grid; place-items: center; width: 120px; height: 120px; margin-top: 36px; font-size: 15px; letter-spacing: 1px; color: #fff; }
.ring-btn:hover { color: var(--c-accent-light); }
.ring-svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; animation: spin 6s linear infinite; }
.ring-track { fill: none; stroke: rgba(255, 255, 255, .28); stroke-width: 1; }
.ring-arc { fill: none; stroke: var(--c-accent); stroke-width: 2.5; stroke-dasharray: 80 280; stroke-linecap: round; }
.ring-btn--dark { color: var(--c-navy-2); }
.ring-btn--dark:hover { color: var(--c-accent); }
.ring-btn--dark .ring-track { stroke: rgba(19, 54, 110, .25); }

/* --- 4.3 产品服务 / 解决方案（浮动关键词 + 底部卡片栏） --- */
.pub-sec { padding: 80px 0 64px; }
.pub-light { color: var(--c-navy-2); background: radial-gradient(ellipse 50% 60% at 85% 20%, rgba(79, 139, 255, .18), transparent 70%), linear-gradient(115deg, #f6f9ff 0%, #eaf1fd 55%, #dfe9fb 100%); }
.pub-light::before { content: ""; position: absolute; inset: 0; pointer-events: none; background-image: radial-gradient(rgba(31, 95, 214, .14) 1px, transparent 1.4px); background-size: 26px 26px; -webkit-mask-image: linear-gradient(90deg, transparent 35%, #000 100%); mask-image: linear-gradient(90deg, transparent 35%, #000 100%); }
.pub-dark { color: #fff; background: linear-gradient(160deg, #071430 0%, #0b2552 100%); }
.pub-visual, .pub-bg, .float-words { display: none; }
.pub-text { position: relative; z-index: 3; }
.pub-title { position: relative; margin-bottom: 24px; padding-bottom: 20px; font-size: 22px; letter-spacing: 1px; text-transform: none; }
.pub-title span { margin-right: 10px; font-size: clamp(36px, 3.2vw, 58px); letter-spacing: 3px; }
.pub-title::after { content: ""; position: absolute; left: 0; bottom: 0; width: 64px; height: 3px; background: var(--c-accent); }
.pub-light .pub-title { color: var(--c-navy-2); }
.pub-sub strong { display: block; font-size: clamp(18px, 1.35vw, 24px); line-height: 1.5; font-weight: 600; color: var(--c-accent); }
.pub-sub p { margin-top: 8px; font: 15px/1.6 var(--font-num); letter-spacing: .5px; opacity: .7; }
.pub-light .pub-sub p { color: var(--c-muted); opacity: 1; }
.pub-bar { position: relative; z-index: 4; margin-top: 36px; }
.pub-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.pub-card { position: relative; isolation: isolate; display: flex; flex-direction: column; justify-content: flex-end; min-height: 220px; padding: 24px 20px; overflow: hidden; border-radius: 4px; color: #fff; }
.pub-card:hover { color: #fff; }
.pub-card-bg { position: absolute; inset: 0; z-index: -1; background: var(--c-navy-2) center / cover no-repeat; transition: opacity .55s var(--ease), transform .8s var(--ease); }
.pub-card-bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(10, 30, 66, .2) 0%, rgba(8, 22, 50, .9) 100%); }
.pub-card-ico { width: 48px; height: 48px; display: grid; place-items: center; margin-bottom: 14px; border-radius: 50%; border: 1px solid rgba(255, 255, 255, .4); transition: background-color .5s, border-color .5s, transform .5s var(--ease); }
.pub-card-ico .icon { width: 24px; height: 24px; }
.pub-card-name strong { display: block; font-size: 20px; letter-spacing: 1px; white-space: nowrap; transition: font-size .5s var(--ease); }
.pub-card-name small { display: block; margin-top: 4px; font: 13px/1.5 var(--font-num); opacity: .7; }
.pub-card-desc { display: block; margin-top: 10px; font-size: 14px; line-height: 1.7; opacity: .85; }
.pub-card-arrow { display: none; }

/* --- 4.4 元宇宙（竖向手风琴面板） --- */
.tech-sec { display: flex; flex-direction: column; padding-top: 80px; color: #fff; background: #050d1f; }
.tech-head { order: -1; position: relative; z-index: 3; }
.tech-panels { display: grid; grid-template-columns: 1fr; gap: 2px; margin-top: 36px; }
.tech-panel { position: relative; display: flex; align-items: flex-end; min-height: 300px; overflow: hidden; color: #fff; }
.tech-panel:hover { color: #fff; }
.tech-panel-bg { position: absolute; inset: 0; background: var(--bg) center / cover no-repeat; filter: saturate(.85) brightness(.6); transform: scale(1.06); transition: transform 1.2s var(--ease), filter .7s; }
.tech-panel::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(5, 13, 31, .55) 0%, rgba(5, 13, 31, .05) 35%, rgba(5, 13, 31, .88) 100%); }
.tech-panel-body { position: relative; z-index: 2; display: block; padding: 28px var(--gutter); }
.tech-no { display: block; margin-bottom: 12px; font: italic 700 46px/1 var(--font-num); color: transparent; -webkit-text-stroke: 1px rgba(255, 255, 255, .55); }
.tech-panel strong { display: block; font-size: clamp(22px, 1.8vw, 32px); letter-spacing: 2px; }
.tech-panel small { display: block; margin-top: 4px; font: 14px/1.6 var(--font-num); letter-spacing: 1px; opacity: .7; }
.tech-desc { display: block; max-width: 30em; margin-top: 14px; font-size: 15px; line-height: 1.9; color: rgba(255, 255, 255, .85); }
.tech-more { display: inline-flex; align-items: center; gap: 8px; margin-top: 18px; font-size: 14px; color: var(--c-accent-light); }
.tech-more .icon { width: 16px; height: 16px; }

/* --- 4.5 新闻中心（横向滑动） --- */
.news-sec { padding: 80px 0; background: #fff; }
.news-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: flex-end; gap: 20px; }
.news-title { font-size: clamp(32px, 2.8vw, 50px); letter-spacing: 3px; color: var(--c-text); }
.news-title small { display: block; margin-top: 8px; font: 600 14px/1 var(--font-num); letter-spacing: 4px; color: var(--c-muted); }
.news-ctrl { display: flex; align-items: center; gap: 12px; }
.news-ctrl button { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 50%; border: 1px solid var(--c-line); transition: background-color .3s, border-color .3s, color .3s, opacity .3s; }
.news-ctrl button .icon { width: 18px; height: 18px; }
.news-ctrl button:hover:not(:disabled) { background: var(--c-primary); border-color: var(--c-primary); color: #fff; }
.news-ctrl button:disabled { opacity: .35; cursor: default; }
.news-more { display: inline-flex; align-items: center; gap: 6px; margin-left: 12px; font-size: 15px; color: var(--c-primary); }
.news-more .icon { width: 16px; height: 16px; }
.news-track { display: grid; grid-auto-flow: column; grid-auto-columns: min(82%, 380px); gap: 22px; margin-top: 32px; padding-bottom: 6px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; overscroll-behavior-x: contain; }
.news-track::-webkit-scrollbar { display: none; }
.news-track.is-dragging { scroll-snap-type: none; cursor: grabbing; }
.news-track.is-dragging a { pointer-events: none; }
.news-card { display: block; padding-top: 24px; border-top: 1px solid #1c1c1c; color: var(--c-text); scroll-snap-align: start; }
.news-card:hover { color: var(--c-text); }
.news-card-title { position: relative; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; height: 3.2em; padding-left: 34px; font-size: clamp(17px, 1.25vw, 22px); line-height: 1.6; font-weight: 400; letter-spacing: .5px; transition: color .3s; }
.news-card:hover .news-card-title { color: var(--c-primary); }
.news-card-title::before { content: ""; position: absolute; left: 0; top: .6em; width: 8px; height: 8px; background: var(--c-navy-2); }
.news-track > :nth-child(3n + 2) .news-card-title::before { background: var(--c-sky); }
.news-track > :nth-child(3n + 3) .news-card-title::before { background: var(--c-accent); }
.news-card-pic { display: block; aspect-ratio: 47 / 36; margin-top: 20px; overflow: hidden; background: var(--c-bg-gray); }
.news-card-pic img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease); }
.news-card:hover .news-card-pic img { transform: scale(1.06); }
.news-card-meta { display: flex; justify-content: space-between; gap: 12px; margin-top: 16px; font-size: 14px; color: var(--c-muted); }
.news-card-meta em { font-style: normal; color: var(--c-navy-2); }
.news-track > :nth-child(3n + 2) .news-card-meta em { color: #5f8fd8; }
.news-track > :nth-child(3n + 3) .news-card-meta em { color: var(--c-accent); }
.news-card-meta time { font-family: var(--font-num); }
.news-scroll { position: relative; height: 1px; margin-top: 28px; background: #e5e7ea; }
.news-scroll-thumb { position: absolute; left: 0; top: -2px; width: 30%; height: 5px; border-radius: 3px; background: linear-gradient(90deg, #386cad 0%, #a5c7ff 100%); }

.fp-dots { display: none; }

/* --- 4.6 大屏整屏模式（参考 fullPage 效果，基于 CSS scroll-snap 实现） --- */
@media (min-width: 1100px) and (min-height: 640px) {
  html.page-home { scroll-snap-type: y mandatory; }
  .page-home .fp-section { height: 100vh; scroll-snap-align: start; scroll-snap-stop: always; }
  .page-home .site-footer { scroll-snap-align: end; }

  .about-sec { padding: 0; }
  .about-body { padding-top: calc(var(--header-h) + 9vh); }
  .about-desc { max-width: 46%; }
  .about-stats { position: absolute; left: 0; right: 0; bottom: 0; margin: 0; padding: 50px 0 6vh; background: linear-gradient(0deg, rgba(4, 12, 30, .78), transparent); }
  .about-stats-inner { display: flex; justify-content: space-between; align-items: flex-end; gap: 40px; }
  .js .about-bignum { display: block; position: absolute; z-index: 1; right: var(--edge); bottom: 32vh; font-family: var(--font-num); }
  .about-bignum li { position: absolute; right: 0; bottom: 0; white-space: nowrap; font-size: min(17vw, 34vh); line-height: .9; font-weight: 700; color: transparent; background: linear-gradient(180deg, rgba(255, 255, 255, .95) 10%, rgba(165, 199, 255, .28) 100%); -webkit-background-clip: text; background-clip: text; filter: drop-shadow(0 0 1.6vw rgba(110, 160, 255, .45)); opacity: 0; transform: translateY(40px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
  .about-bignum li.is-active { opacity: 1; transform: none; }
  .about-bignum li i { font-size: .5em; font-style: normal; vertical-align: top; }
  .js .stat-slider { display: block; position: relative; width: 440px; min-height: 120px; }
  .js .stat-ctrl { display: flex; position: absolute; z-index: 2; left: 260px; top: 6px; gap: 12px; }
  .stat-ctrl button { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 50%; border: 1px solid rgba(255, 255, 255, .35); color: #fff; opacity: .6; transition: opacity .3s, border-color .3s; }
  .stat-ctrl button .icon { width: 16px; height: 16px; }
  .stat-ctrl button:hover { opacity: 1; border-color: #fff; }
  .js .stat-item { position: absolute; left: 0; bottom: 0; padding: 0; border: 0; opacity: 0; visibility: hidden; transition: opacity .5s, visibility 0s linear .5s; }
  .js .stat-item.is-active { position: relative; opacity: 1; visibility: visible; transition-delay: 0s; }
  .stat-num { font-size: 60px; }
  .stat-item strong { font-size: 16px; }
  .js .stat-labels { display: block; position: relative; width: min(560px, 42vw); min-height: 100px; text-align: right; }
  .stat-labels li { position: absolute; right: 0; bottom: 0; width: 100%; opacity: 0; transform: translateY(12px); transition: opacity .5s, transform .5s var(--ease); }
  .stat-labels li.is-active { opacity: 1; transform: none; }
  .stat-labels strong { display: block; margin-bottom: 8px; font-size: 28px; font-weight: 400; letter-spacing: 2px; }
  .stat-labels p { font-size: 15px; color: rgba(255, 255, 255, .7); }

  .pub-sec { padding: 0; }
  .pub-text { padding-top: calc(var(--header-h) + 9vh); }
  .pub-bar { --bar-h: 170px; --bar-active-h: min(330px, 36vh); position: absolute; left: 0; right: 0; bottom: 0; margin: 0; }
  .pub-bar::before { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: var(--bar-h); background: rgba(6, 14, 32, .6); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
  .pub-light .pub-bar::before { background: rgba(14, 40, 92, .86); }
  .pub-cards { position: relative; grid-template-columns: repeat(var(--n), minmax(0, 1fr)); gap: 0; height: var(--bar-active-h); align-items: end; }
  .pub-cards li { position: relative; height: 100%; }
  .pub-cards li + li::before { content: ""; position: absolute; z-index: 1; left: 0; bottom: 30px; height: calc(var(--bar-h) - 60px); width: 1px; background: rgba(255, 255, 255, .14); }
  .pub-card { position: absolute; left: 0; right: 0; bottom: 0; height: var(--bar-h); min-height: 0; justify-content: flex-start; align-items: center; padding: 28px 14px 0; text-align: center; border-radius: 0; transition: height .55s var(--ease), padding .55s var(--ease); }
  .pub-card-bg { opacity: 0; }
  .pub-card.is-active { z-index: 2; height: var(--bar-active-h); padding-top: 44px; }
  .pub-card.is-active .pub-card-bg { opacity: 1; }
  .pub-card.is-active .pub-card-ico { background: var(--c-accent); border-color: var(--c-accent); transform: scale(1.08); }
  .pub-card.is-active .pub-card-name strong { font-size: 24px; font-weight: 700; }
  .pub-card-desc { max-width: 260px; max-height: 0; margin-top: 0; overflow: hidden; opacity: 0; transition: max-height .55s var(--ease), opacity .4s, margin .55s var(--ease); }
  .pub-card.is-active .pub-card-desc { max-height: 5.2em; margin-top: 14px; opacity: .85; }
  .pub-card-arrow { display: grid; place-items: center; width: 44px; height: 44px; margin-top: 18px; border-radius: 50%; border: 1px solid rgba(255, 255, 255, .55); opacity: 0; transform: translateY(10px); transition: opacity .5s, transform .5s var(--ease), background-color .3s; }
  .pub-card-arrow .icon { width: 18px; height: 18px; }
  .pub-card.is-active .pub-card-arrow { opacity: 1; transform: none; }
  .pub-card:hover .pub-card-arrow { background: var(--c-accent); border-color: var(--c-accent); }

  .pub-visual { display: block; position: absolute; z-index: 1; right: var(--edge); top: calc(var(--header-h) + 8vh); height: calc(100vh - var(--header-h) - 8vh - min(330px, 36vh) - 6vh); aspect-ratio: 3 / 2; max-width: 46vw; overflow: hidden; border-radius: 6px; box-shadow: 0 30px 60px rgba(19, 54, 110, .28); }
  .pub-visual-item { position: absolute; inset: 0; background: center / cover no-repeat; opacity: 0; transform: scale(1.04); transition: opacity .8s var(--ease), transform 1.2s var(--ease); }
  .pub-visual-item.is-active { opacity: 1; transform: none; }
  .pub-bg { display: block; position: absolute; inset: 0; }
  .pub-bg-item { position: absolute; inset: 0; background: center / cover no-repeat; opacity: 0; transform: scale(1.06); transition: opacity 1s var(--ease), transform 1.6s var(--ease); }
  .pub-bg-item.is-active { opacity: 1; transform: none; }
  .pub-dark::before { content: ""; position: absolute; inset: 0; z-index: 1; background: linear-gradient(90deg, rgba(6, 18, 42, .94) 0%, rgba(6, 18, 42, .74) 48%, rgba(6, 18, 42, .5) 100%); }
  .pub-dark .float-words { z-index: 2; }

  .float-words { display: block; position: absolute; inset: 0; z-index: 0; pointer-events: none; }
  .float-words span { position: absolute; font-size: clamp(16px, 1.55vw, 30px); letter-spacing: 1px; white-space: nowrap; color: transparent; -webkit-background-clip: text; background-clip: text; background-image: linear-gradient(180deg, rgba(255, 255, 255, .95), rgba(255, 255, 255, .08)); opacity: 0; animation: floatWord 6.5s linear infinite; }
  .pub-light .float-words span { background-image: linear-gradient(180deg, rgba(31, 72, 140, .7), rgba(31, 72, 140, .06)); }
  .float-words span:nth-child(1) { left: 44%; top: 22%; }
  .float-words span:nth-child(2) { left: 63%; top: 30%; animation-delay: 1.3s; }
  .float-words span:nth-child(3) { left: 52%; top: 46%; animation-delay: 2.6s; }
  .float-words span:nth-child(4) { left: 78%; top: 17%; animation-delay: 3.9s; }
  .float-words span:nth-child(5) { left: 86%; top: 39%; animation-delay: 5.2s; }
  .float-words span:nth-child(6) { left: 71%; top: 52%; animation-delay: .65s; }
  .float-words span:nth-child(7) { left: 40%; top: 57%; animation-delay: 1.95s; }
  .float-words span:nth-child(8) { left: 57%; top: 13%; animation-delay: 3.25s; }
  .float-words span:nth-child(9) { left: 89%; top: 56%; animation-delay: 4.55s; }
  .float-words span:nth-child(10) { left: 47%; top: 34%; animation-delay: 5.85s; }

  .tech-sec { display: block; padding: 0; }
  .tech-panels { position: absolute; inset: 0; display: flex; gap: 0; margin: 0; }
  .tech-panel { flex: 1 1 0; min-width: 0; min-height: 0; border-right: 1px solid rgba(255, 255, 255, .1); transition: flex-grow .7s var(--ease); }
  .tech-panel:last-child { border-right: 0; }
  .tech-panel.is-active { flex-grow: 1.9; }
  .tech-panel.is-active .tech-panel-bg { transform: none; filter: saturate(1) brightness(.78); }
  .tech-panel-body { position: absolute; left: 0; right: 0; bottom: 0; padding: 0 clamp(20px, 2.6vw, 48px) 10vh; }
  .tech-desc { max-height: 0; margin-top: 0; overflow: hidden; opacity: 0; transition: max-height .7s var(--ease), opacity .5s, margin .5s; }
  .tech-panel.is-active .tech-desc { max-height: 12em; margin-top: 18px; opacity: 1; }
  .tech-more { opacity: 0; transition: opacity .5s; }
  .tech-panel.is-active .tech-more { opacity: 1; }
  .tech-head { padding-top: calc(var(--header-h) + 7vh); pointer-events: none; }

  .news-sec { padding: 0; }
  .news-sec-inner { padding-top: calc(var(--header-h) + 5vh); }
  .news-track { grid-auto-columns: calc((100% - 80px) / 3); gap: 40px; margin-top: 3.5vh; }
  .news-card-pic { aspect-ratio: auto; height: clamp(180px, 33vh, 360px); }

  .fp-dots { display: flex; position: fixed; z-index: 90; right: 28px; top: 50%; flex-direction: column; gap: 14px; transform: translateY(-50%); transition: opacity .4s; }
  .fp-dots.is-hidden { opacity: 0; pointer-events: none; }
  .fp-dots a { position: relative; display: block; width: 16px; height: 16px; }
  .fp-dots a::before { content: ""; position: absolute; left: 50%; top: 50%; width: 6px; height: 6px; margin: -3px 0 0 -3px; border-radius: 50%; background: rgba(255, 255, 255, .65); transition: all .3s var(--ease); }
  .fp-dots.on-light a::before { background: rgba(10, 30, 66, .35); }
  .fp-dots a.is-active::before { width: 14px; height: 14px; margin: -7px 0 0 -7px; background: transparent; border: 2px solid var(--c-accent); }
  .fp-dots a span { position: absolute; right: 28px; top: 50%; padding: 2px 10px; font-size: 13px; white-space: nowrap; color: #fff; background: rgba(10, 30, 66, .85); border-radius: 2px; opacity: 0; transform: translate(6px, -50%); pointer-events: none; transition: opacity .3s, transform .3s; }
  .fp-dots a:hover span, .fp-dots a:focus-visible span { opacity: 1; transform: translate(0, -50%); }
  .pub-card.is-active .pub-card-desc { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; }
}

/* 整屏模式下的矮屏（如 1366×768 笔记本）紧凑布局 */
@media (min-width: 1100px) and (min-height: 640px) and (max-height: 860px) {
  .about-body, .pub-text { padding-top: calc(var(--header-h) + 5vh); }
  .about-title { margin: 10px 0 16px; }
  .about-desc p { font-size: 15px; line-height: 1.85; }
  .about-stats { padding: 30px 0 4vh; }
  .stat-num { font-size: 50px; }
  .ring-btn { width: 96px; height: 96px; margin-top: 22px; font-size: 14px; }
  .pub-title { margin-bottom: 16px; padding-bottom: 14px; }
  .pub-title span { font-size: 44px; }
  .pub-bar { --bar-h: 136px; --bar-active-h: 280px; }
  .pub-card { padding-top: 22px; }
  .pub-card.is-active { padding-top: 26px; }
  .pub-card-ico { width: 42px; height: 42px; margin-bottom: 10px; }
  .pub-card.is-active .pub-card-name strong { font-size: 21px; }
  .pub-card.is-active .pub-card-desc { margin-top: 10px; }
  .pub-card-arrow { width: 38px; height: 38px; margin-top: 12px; }
  .pub-visual { top: calc(var(--header-h) + 5vh); height: calc(100vh - var(--header-h) - 10vh - 280px); }
  .tech-head { padding-top: calc(var(--header-h) + 5vh); }
  .tech-panel-body { padding-bottom: 7vh; }
  .news-sec-inner { padding-top: calc(var(--header-h) + 3vh); }
  .news-card-pic { height: clamp(160px, 30vh, 300px); }
}

@keyframes kenburns { from { transform: scale(1.12); } to { transform: scale(1); } }
@keyframes heroIn { from { opacity: 0; transform: translateX(120px); } to { opacity: 1; transform: none; } }
@keyframes dotProgress { to { transform: scaleX(1); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes dropLine { 0% { height: 0; opacity: 0; } 30% { opacity: 1; } 100% { height: 30px; opacity: 0; } }
@keyframes floatWord { 0% { opacity: 0; transform: translateY(26px); } 20%, 70% { opacity: 1; } 100% { opacity: 0; transform: translateY(-26px); } }

/* ========== 5. 内页组件 ========== */
.page-banner { position: relative; display: grid; align-items: center; height: clamp(300px, 30vw, 560px); overflow: hidden; color: #fff; background: var(--c-navy); }
.page-banner-bg { position: absolute; inset: 0; background: var(--banner) center / cover no-repeat; animation: bannerZoom 10s var(--ease) both; }
.page-banner-bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(6, 18, 42, .88) 0%, rgba(6, 18, 42, .62) 100%), linear-gradient(0deg, rgba(6, 18, 42, .55) 0%, transparent 50%); }
.page-banner-text { position: relative; z-index: 1; padding-bottom: 76px; text-align: center; }
.page-banner h1 { font-size: clamp(30px, 3vw, 56px); letter-spacing: 4px; text-shadow: 0 2px 16px rgba(0, 0, 0, .3); }
.page-banner-en { margin-top: 14px; font: 600 clamp(13px, .9vw, 16px)/1.4 var(--font-num); letter-spacing: 6px; opacity: .65; }
.page-banner-desc { max-width: 46em; margin: 16px auto 0; font-size: clamp(15px, 1.05vw, 18px); opacity: .88; }

.subnav { position: relative; z-index: 3; margin-top: -76px; color: #fff; background: rgba(20, 82, 190, .9); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }
.subnav-inner { display: flex; justify-content: space-between; align-items: center; gap: 24px; min-height: 76px; }
.crumbs { display: flex; align-items: center; gap: 12px; min-width: 0; font-size: 15px; white-space: nowrap; }
.crumbs a { color: rgba(255, 255, 255, .85); }
.crumbs a:hover { color: #fff; }
.crumbs-home .icon { width: 20px; height: 20px; }
.crumbs i { font-style: normal; opacity: .5; }
.crumbs span { overflow: hidden; text-overflow: ellipsis; max-width: 24em; }
.subnav-menu { display: flex; min-width: 0; overflow-x: auto; scrollbar-width: none; }
.subnav-menu::-webkit-scrollbar { display: none; }
.subnav-link { --pad: clamp(10px, 1.2vw, 22px); position: relative; flex: none; padding: 0 var(--pad); font-size: 15px; line-height: 76px; white-space: nowrap; color: rgba(255, 255, 255, .85); }
.subnav-link::after { content: ""; position: absolute; left: 50%; right: 50%; bottom: 0; height: 3px; background: #fff; transition: left .3s var(--ease), right .3s var(--ease); }
.subnav-link:hover, .subnav-link.is-current { color: #fff; }
.subnav-link:hover::after, .subnav-link.is-current::after { left: var(--pad); right: var(--pad); }

.sec { padding: clamp(64px, 6.5vw, 120px) 0; }
.sec-gray { background: var(--c-bg-gray); }
.sec-dark { position: relative; overflow: hidden; color: #fff; background: radial-gradient(ellipse 60% 80% at 85% 0%, rgba(31, 95, 214, .38), transparent 70%), linear-gradient(160deg, #071430 0%, #0b2552 100%); }
.sec-dark > .container { position: relative; z-index: 1; }
.sec-head { margin-bottom: clamp(34px, 3.4vw, 58px); }
.sec-head.is-center { text-align: center; }
.sec-title { position: relative; display: inline-block; padding-bottom: 18px; font-size: clamp(26px, 2.2vw, 42px); letter-spacing: 2px; color: var(--c-text); }
.sec-title::after { content: ""; position: absolute; left: 0; bottom: 0; width: 98px; height: 2px; background: var(--c-primary); }
.sec-head.is-center .sec-title::after { left: 50%; margin-left: -49px; }
.sec-en { margin-top: 14px; font: 600 13px/1.4 var(--font-num); letter-spacing: 4px; text-transform: uppercase; color: var(--c-muted); }
.sec-desc { max-width: 780px; margin: 18px auto 0; font-size: 16px; color: var(--c-text-2); }
.sec-head:not(.is-center) .sec-desc { margin-left: 0; }
.sec-head.is-light .sec-title { color: #fff; }
.sec-head.is-light .sec-title::after { background: var(--c-accent); }
.sec-head.is-light .sec-en { color: rgba(255, 255, 255, .55); }
.sec-head.is-light .sec-desc { color: rgba(255, 255, 255, .78); }

.intro-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(36px, 5vw, 90px); align-items: center; }
.intro-text p { margin-top: 16px; font-size: 16px; line-height: 2; color: var(--c-text-2); text-align: justify; }
.intro-text .sec-head { margin-bottom: 26px; }
.intro-text .intro-lead { margin-top: 0; font-size: clamp(18px, 1.3vw, 22px); font-weight: 600; line-height: 1.7; color: var(--c-primary); text-align: left; }
.intro-media { position: relative; isolation: isolate; }
.intro-media::before { content: ""; position: absolute; left: -18px; top: -18px; width: 42%; height: 52%; border: 2px solid var(--c-accent); border-radius: 4px; }
.intro-media::after { content: ""; position: absolute; right: -18px; bottom: 26px; width: 120px; height: 120px; background-image: radial-gradient(rgba(31, 95, 214, .35) 1.4px, transparent 1.6px); background-size: 14px 14px; z-index: -1; }
.intro-media img { position: relative; width: 100%; border-radius: 4px; box-shadow: var(--shadow); }
.intro-media figcaption { margin-top: 12px; font-size: 13px; text-align: center; color: var(--c-muted); }
.check-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 24px; margin-top: 26px; }
.check-list li { display: flex; gap: 10px; font-size: 15px; line-height: 1.6; color: var(--c-text); }
.check-list .icon { width: 20px; height: 20px; margin-top: 1px; padding: 3px; border-radius: 50%; color: #fff; background: var(--c-primary); }

.feature-block + .feature-block { margin-top: 56px; }
.block-title { margin-bottom: 28px; font-size: 20px; text-align: center; color: var(--c-text); }
.block-title span { display: inline-flex; align-items: center; gap: 16px; }
.block-title span::before, .block-title span::after { content: ""; width: 44px; height: 1px; background: #c9d3e3; }
.feature-grid { display: grid; gap: 24px; }
.feature-grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.feature-grid.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.feature-card { position: relative; overflow: hidden; padding: 34px 30px; background: #fff; border: 1px solid #edf0f5; border-radius: 4px; transition: transform .4s var(--ease), box-shadow .4s; }
.feature-card::after { content: ""; position: absolute; left: 0; bottom: 0; width: 0; height: 3px; background: var(--c-primary); transition: width .45s var(--ease); }
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.feature-card:hover::after { width: 100%; }
.feature-ico { width: 56px; height: 56px; display: grid; place-items: center; margin-bottom: 20px; border-radius: 12px; color: #fff; background: linear-gradient(135deg, var(--c-primary), var(--c-primary-light)); box-shadow: 0 8px 18px rgba(31, 95, 214, .25); }
.feature-ico .icon { width: 28px; height: 28px; }
.feature-card h4 { margin-bottom: 10px; font-size: 19px; }
.feature-card p { font-size: 15px; line-height: 1.8; color: var(--c-text-2); }

.point-list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid rgba(255, 255, 255, .16); }
.point { padding: 36px 30px 8px; border-right: 1px solid rgba(255, 255, 255, .12); }
.point:last-child { border-right: 0; }
.point-no { display: block; margin-bottom: 20px; font: 700 54px/1 var(--font-num); color: transparent; -webkit-text-stroke: 1px rgba(255, 255, 255, .5); transition: color .4s, -webkit-text-stroke-color .4s; }
.point:hover .point-no { color: var(--c-accent); -webkit-text-stroke-color: var(--c-accent); }
.point h4 { margin-bottom: 12px; font-size: 20px; }
.point p { font-size: 15px; line-height: 1.9; color: rgba(255, 255, 255, .74); }

.arch { display: grid; grid-template-columns: minmax(0, 1fr); gap: 14px; }
.arch.has-sides { grid-template-columns: 54px minmax(0, 1fr) 54px; }
.arch-side { display: grid; place-items: center; border: 1px dashed rgba(31, 95, 214, .45); border-radius: 4px; background: rgba(31, 95, 214, .04); }
.arch-side span { writing-mode: vertical-rl; font-size: 16px; font-weight: 600; letter-spacing: 6px; color: var(--c-primary); }
.arch-layers { display: grid; gap: 12px; }
.arch-layer { display: grid; grid-template-columns: 150px minmax(0, 1fr); gap: 12px; }
.arch-name { display: grid; place-items: center; padding: 12px; border-radius: 4px; text-align: center; font-size: 17px; font-weight: 600; letter-spacing: 2px; color: #fff; background: linear-gradient(135deg, var(--c-primary), #3b78ec); }
.arch-layer:nth-child(even) .arch-name { background: linear-gradient(135deg, var(--c-navy-2), #1f4f9e); }
.arch-body { padding: 14px; border: 1px dashed #c9d6ee; border-radius: 4px; background: #f8faff; }
.arch-chips { display: flex; flex-wrap: wrap; gap: 10px; }
.arch-chips li { flex: 1 1 auto; min-width: 120px; padding: 10px 14px; border: 1px solid #dfe7f5; border-radius: 3px; background: #fff; font-size: 14px; line-height: 1.5; text-align: center; color: var(--c-text); transition: border-color .3s, color .3s, box-shadow .3s; }
.arch-chips li:hover { border-color: var(--c-primary); color: var(--c-primary); box-shadow: 0 4px 12px rgba(31, 95, 214, .12); }
.arch-groups { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.arch-group { padding: 14px; border: 1px solid #e3eaf6; border-radius: 4px; background: #fff; }
.arch-group h5 { margin-bottom: 12px; font-size: 15px; text-align: center; color: var(--c-primary); }
.arch-group .arch-chips li { min-width: 96px; padding: 8px 10px; font-size: 13px; background: #f5f8fe; }

.flow { display: flex; align-items: stretch; }
.flow-col { flex: 1 1 0; min-width: 0; display: flex; flex-direction: column; gap: 12px; padding: 14px; border: 1px dashed #c9d6ee; border-radius: 4px; background: #f8faff; }
.flow-source { flex-grow: .8; border: 0; color: #fff; background: linear-gradient(160deg, #0b2552, var(--c-navy-2)); }
.flow-name { padding: 10px; border-radius: 3px; text-align: center; font-size: 16px; letter-spacing: 2px; color: #fff; background: linear-gradient(135deg, var(--c-primary), #3b78ec); }
.flow-source .flow-name { background: rgba(255, 255, 255, .12); }
.flow-source .arch-chips li { border-color: rgba(255, 255, 255, .16); background: rgba(255, 255, 255, .07); color: #fff; }
.flow-arrow { flex: none; width: 36px; display: grid; place-items: center; color: var(--c-primary); }
.flow-arrow .icon { width: 26px; height: 26px; }
.flow-group { padding: 10px; border: 1px solid #e3eaf6; border-radius: 4px; background: #fff; }
.flow-group h5 { margin-bottom: 8px; font-size: 14px; text-align: center; color: var(--c-primary); }
.flow .arch-chips { gap: 8px; }
.flow .arch-chips li { flex: 1 1 100%; min-width: 0; padding: 7px 8px; font-size: 13px; }

.scene-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.scene-card { position: relative; overflow: hidden; padding: 40px 34px; background: #fff; border: 1px solid #edf0f5; border-radius: 4px; transition: background .4s, color .4s, transform .4s var(--ease), box-shadow .4s; }
.scene-card::before { content: ""; position: absolute; right: -40px; top: -40px; width: 150px; height: 150px; border-radius: 50%; background: radial-gradient(circle, rgba(31, 95, 214, .12), transparent 70%); }
.scene-card:hover { color: #fff; background: linear-gradient(150deg, var(--c-navy-2), var(--c-primary)); transform: translateY(-6px); box-shadow: 0 18px 36px rgba(19, 54, 110, .25); }
.scene-ico { width: 60px; height: 60px; display: grid; place-items: center; margin-bottom: 22px; border-radius: 50%; color: var(--c-primary); background: rgba(31, 95, 214, .08); transition: background .4s, color .4s; }
.scene-ico .icon { width: 30px; height: 30px; }
.scene-card:hover .scene-ico { color: var(--c-accent-light); background: rgba(255, 255, 255, .1); }
.scene-card h4 { margin-bottom: 12px; font-size: 20px; }
.scene-card p { font-size: 15px; line-height: 1.85; color: var(--c-text-2); transition: color .4s; }
.scene-card:hover p { color: rgba(255, 255, 255, .82); }
.service-note { display: flex; gap: 14px; align-items: flex-start; margin-top: 32px; padding: 22px 26px; border-left: 3px solid var(--c-accent); background: #fff; font-size: 15px; line-height: 1.85; color: var(--c-text-2); }
.service-note .icon { width: 24px; height: 24px; margin-top: 2px; color: var(--c-primary); }
.service-note strong { color: var(--c-text); }

.card-grid { display: grid; gap: 28px; }
.card-grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card-grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card-grid.cols-1 { max-width: 620px; margin-inline: auto; }
.img-card { display: flex; flex-direction: column; height: 100%; overflow: hidden; background: #fff; border: 1px solid #edf0f5; border-radius: 4px; color: var(--c-text); box-shadow: 0 2px 10px rgba(10, 30, 66, .04); transition: transform .4s var(--ease), box-shadow .4s; }
.img-card:hover { color: var(--c-text); transform: translateY(-6px); box-shadow: var(--shadow); }
.img-card-pic { display: block; aspect-ratio: 3 / 2; overflow: hidden; background: var(--c-bg-gray); }
.img-card-pic img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease); }
.img-card:hover .img-card-pic img { transform: scale(1.06); }
.img-card-body { position: relative; display: flex; flex: 1; flex-direction: column; padding: 38px 28px 28px; }
.img-card-ico { position: absolute; left: 28px; top: -28px; width: 56px; height: 56px; display: grid; place-items: center; border-radius: 50%; color: #fff; background: var(--c-primary); box-shadow: 0 8px 18px rgba(31, 95, 214, .3); transition: background-color .3s; }
.img-card-ico .icon { width: 26px; height: 26px; }
.img-card:hover .img-card-ico { background: var(--c-accent); }
.img-card strong { font-size: 20px; }
.img-card small { margin-top: 2px; font: 13px/1.6 var(--font-num); color: var(--c-muted); }
.img-card em { flex: 1; margin-top: 12px; font-style: normal; font-size: 15px; line-height: 1.8; color: var(--c-text-2); }
.img-card .more { display: inline-flex; align-items: center; gap: 6px; margin-top: 18px; font-size: 14px; color: var(--c-primary); }
.img-card .more .icon { width: 16px; height: 16px; transition: transform .3s; }
.img-card:hover .more .icon { transform: translateX(4px); }

.zigzag { display: grid; gap: clamp(56px, 6vw, 110px); }
.zz-item { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(32px, 5vw, 90px); align-items: center; }
.zz-item.is-rev .zz-pic { order: 2; }
.zz-pic { position: relative; display: block; aspect-ratio: 3 / 2; overflow: hidden; border-radius: 4px; box-shadow: var(--shadow); }
.zz-pic img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.zz-pic:hover img { transform: scale(1.05); }
.zz-badge { position: absolute; left: 24px; bottom: 24px; width: 64px; height: 64px; display: grid; place-items: center; border-radius: 50%; color: #fff; background: var(--c-accent); box-shadow: 0 10px 24px rgba(242, 112, 29, .4); }
.zz-badge .icon { width: 30px; height: 30px; }
.zz-no { font: 700 64px/1 var(--font-num); color: transparent; -webkit-text-stroke: 1px #b9c7e2; }
.zz-body h3 { margin-top: 12px; font-size: clamp(24px, 2vw, 34px); }
.zz-body h3 a:hover { color: var(--c-primary); }
.zz-en { font: 14px/1.6 var(--font-num); letter-spacing: 1px; color: var(--c-muted); }
.zz-tagline { margin-top: 18px; font-size: 18px; font-weight: 600; color: var(--c-primary); }
.zz-summary { margin-top: 10px; font-size: 16px; line-height: 1.9; color: var(--c-text-2); }
.zz-body .btn { margin-top: 30px; }

.challenge-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.challenge { position: relative; overflow: hidden; padding: 40px 32px 34px; background: #fff; border: 1px solid #edf0f5; border-radius: 4px; transition: transform .4s var(--ease), box-shadow .4s; }
.challenge:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.challenge-no { position: absolute; right: 22px; top: 14px; font: 700 64px/1 var(--font-num); color: rgba(31, 95, 214, .07); }
.challenge-ico { width: 52px; height: 52px; display: grid; place-items: center; margin-bottom: 20px; border-radius: 10px; color: var(--c-accent); background: rgba(242, 112, 29, .1); }
.challenge-ico .icon { width: 26px; height: 26px; }
.challenge h4 { margin-bottom: 10px; font-size: 19px; }
.challenge p { font-size: 15px; line-height: 1.85; color: var(--c-text-2); }

.value-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; }
.value-card { padding: 38px 30px; border: 1px solid rgba(255, 255, 255, .12); border-radius: 4px; background: rgba(255, 255, 255, .04); transition: background-color .4s, border-color .4s, transform .4s var(--ease); }
.value-card:hover { background: rgba(255, 255, 255, .08); border-color: var(--c-accent); transform: translateY(-6px); }
.value-card > .icon { width: 44px; height: 44px; margin-bottom: 22px; color: var(--c-accent-light); }
.value-card h4 { margin-bottom: 10px; font-size: 19px; }
.value-card p { font-size: 15px; line-height: 1.85; color: rgba(255, 255, 255, .72); }

.cta-band { position: relative; overflow: hidden; color: #fff; background: linear-gradient(110deg, var(--c-primary-dark) 0%, var(--c-primary) 55%, #3d7cf0 100%); }
.cta-band::before { content: ""; position: absolute; right: 8%; top: -120px; width: 360px; height: 360px; border-radius: 50%; border: 60px solid rgba(255, 255, 255, .06); }
.cta-inner { position: relative; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 24px 40px; padding: 56px 0; }
.cta-text h3 { font-size: clamp(22px, 1.8vw, 30px); letter-spacing: 1px; }
.cta-text p { margin-top: 8px; font-size: 15px; color: rgba(255, 255, 255, .82); }
.cta-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.cta-band .btn-primary { background: #fff; color: var(--c-primary); box-shadow: 0 8px 20px rgba(0, 0, 0, .15); }
.cta-band .btn-primary:hover { background: var(--c-accent); color: #fff; }

.news-filter { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-bottom: 40px; }
.news-filter-btn { height: 40px; padding: 0 24px; border: 1px solid var(--c-line); border-radius: 20px; font-size: 15px; transition: background-color .3s, border-color .3s, color .3s; }
.news-filter-btn:hover, .news-filter-btn.is-active { color: #fff; border-color: var(--c-primary); background: var(--c-primary); }
.news-list { border-top: 1px solid var(--c-line); }
.news-row { border-bottom: 1px solid var(--c-line); }
.news-row[hidden] { display: none; }
.news-row a { display: grid; grid-template-columns: 110px minmax(0, 1fr) 300px; gap: 40px; align-items: center; padding: 34px 20px; color: var(--c-text); transition: background-color .4s; }
.news-row a:hover { color: var(--c-text); background: linear-gradient(90deg, #f3f7ff, rgba(243, 247, 255, 0)); }
.news-row-date { padding-right: 20px; border-right: 1px solid var(--c-line); text-align: center; }
.news-row-date strong { display: block; font: 700 52px/1 var(--font-num); color: var(--c-primary); }
.news-row-date small { display: block; margin-top: 8px; font: 15px/1 var(--font-num); color: var(--c-muted); }
.news-row-cat { display: inline-block; padding: 1px 10px; border: 1px solid currentColor; border-radius: 12px; font-style: normal; font-size: 13px; color: var(--c-accent); }
.news-row h3 { margin: 12px 0 10px; font-size: 21px; line-height: 1.5; transition: color .3s; }
.news-row a:hover h3 { color: var(--c-primary); }
.news-row p { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; font-size: 15px; line-height: 1.85; color: var(--c-text-2); }
.news-row .more { display: inline-flex; align-items: center; gap: 6px; margin-top: 14px; font-size: 14px; color: var(--c-primary); }
.news-row .more .icon { width: 16px; height: 16px; }
.news-row-pic { display: block; aspect-ratio: 3 / 2; overflow: hidden; border-radius: 4px; background: var(--c-bg-gray); }
.news-row-pic img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease); }
.news-row a:hover .news-row-pic img { transform: scale(1.06); }
.pager { display: flex; justify-content: center; gap: 10px; margin-top: 48px; }
.pager-item { min-width: 42px; height: 42px; display: grid; place-items: center; padding: 0 10px; border: 1px solid var(--c-line); border-radius: 4px; font-family: var(--font-num); }
.pager-item.is-current { color: #fff; border-color: var(--c-primary); background: var(--c-primary); }

.article { max-width: 960px; }
.article-head { margin-bottom: 40px; padding-bottom: 28px; border-bottom: 1px solid var(--c-line); text-align: center; }
.article-head h1 { font-size: clamp(24px, 2vw, 34px); line-height: 1.5; }
.article-meta { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 28px; margin-top: 18px; font-size: 14px; color: var(--c-muted); }
.article-meta span { display: inline-flex; align-items: center; gap: 6px; }
.article-meta .icon { width: 16px; height: 16px; }
.prose { font-size: 17px; line-height: 2; color: #333; word-wrap: break-word; }
.prose > * + * { margin-top: 1.1em; }
.prose h2 { margin-top: 1.8em; padding-left: 14px; border-left: 4px solid var(--c-primary); font-size: 24px; line-height: 1.4; }
.prose h3 { margin-top: 1.5em; font-size: 20px; }
.prose h4 { margin-top: 1.3em; font-size: 18px; }
.prose ul { padding-left: 1.5em; list-style: disc; }
.prose ol { padding-left: 1.6em; list-style: decimal; }
.prose li + li { margin-top: .4em; }
.prose a { color: var(--c-primary); border-bottom: 1px solid rgba(31, 95, 214, .3); }
.prose a:hover { border-bottom-color: var(--c-primary); }
.prose img { margin: 0 auto; border-radius: 4px; }
.prose figure { margin: 1.8em 0; }
.prose figcaption { margin-top: 10px; font-size: 14px; text-align: center; color: var(--c-muted); }
.prose blockquote { margin: 1.5em 0; padding: 16px 22px; border-left: 4px solid var(--c-accent); background: var(--c-bg-gray); color: var(--c-text-2); }
.prose code { padding: 2px 6px; border-radius: 3px; background: #f1f3f8; font-size: .9em; }
.prose pre { overflow-x: auto; padding: 18px; border-radius: 4px; background: #0f1a30; color: #e6edf7; font-size: 14px; line-height: 1.7; }
.prose pre code { padding: 0; background: none; }
.prose hr { margin: 2em 0; border: 0; border-top: 1px solid var(--c-line); }
.prose strong { color: var(--c-text); }
.prose.legal h2 { font-size: 21px; }
.prose.legal p { text-indent: 2em; text-align: justify; }
.article-pager { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; margin-top: 60px; padding-top: 30px; border-top: 1px solid var(--c-line); }
.article-pager > * { display: block; padding: 18px 22px; border-radius: 4px; background: var(--c-bg-gray); transition: background-color .3s; }
.article-pager > :last-child { text-align: right; }
.article-pager a:hover { background: #eaf1ff; }
.article-pager small { display: block; font-size: 13px; color: var(--c-muted); }
.article-pager span > span, .article-pager a > span { display: block; margin-top: 4px; font-size: 15px; line-height: 1.6; }
.article-pager .is-empty { opacity: .6; }
.article-back { margin-top: 40px; text-align: center; }

.about-intro { align-items: start; }
.about-visual { position: relative; margin-bottom: 30px; }
.about-visual > img { width: 100%; border-radius: 4px; box-shadow: var(--shadow); }
.about-visual-badge { position: absolute; left: -30px; bottom: -30px; display: flex; align-items: center; gap: 14px; padding: 18px 24px; border-radius: 4px; background: #fff; box-shadow: var(--shadow); }
.about-visual-badge img { width: 48px; height: 48px; }
.about-visual-badge strong { display: block; font-size: 18px; letter-spacing: 2px; }
.about-visual-badge span { font-size: 13px; color: var(--c-muted); }
.fact-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin-top: clamp(56px, 5vw, 96px); border-top: 2px solid var(--c-primary); }
.fact { padding: 30px 28px 6px; border-right: 1px solid var(--c-line); }
.fact:last-child { border-right: 0; }
.fact strong { display: block; margin-bottom: 10px; font-size: 19px; color: var(--c-primary); }
.fact p { font-size: 15px; line-height: 1.9; color: var(--c-text-2); }
.stats-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; text-align: center; }
.stats-grid .stat-num { font-size: clamp(44px, 4vw, 72px); color: #fff; }
.stats-grid .stat-num i { color: var(--c-accent-light); }
.stats-grid strong { display: block; margin-top: 14px; font-size: 16px; font-weight: 400; color: rgba(255, 255, 255, .8); }
.values-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; }
.values-card { padding: 44px 30px; border: 1px solid #edf0f5; border-radius: 4px; background: #fff; text-align: center; transition: transform .4s var(--ease), box-shadow .4s, border-color .4s; }
.values-card:hover { border-color: transparent; box-shadow: var(--shadow); transform: translateY(-6px); }
.values-ico { width: 76px; height: 76px; display: grid; place-items: center; margin: 0 auto 22px; border-radius: 50%; color: #fff; background: linear-gradient(135deg, var(--c-accent), var(--c-accent-light)); box-shadow: 0 10px 22px rgba(242, 112, 29, .28); }
.values-ico .icon { width: 34px; height: 34px; }
.values-card h4 { margin-bottom: 12px; font-size: 21px; letter-spacing: 2px; }
.values-card p { font-size: 15px; line-height: 1.85; color: var(--c-text-2); }
.cap-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; }
.cap-card { padding: 30px 26px; border-top: 3px solid var(--c-primary); border-radius: 4px; background: #fff; }
.cap-card h4 { margin-bottom: 18px; font-size: 18px; }
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-list li { padding: 5px 12px; border-radius: 14px; font-size: 13px; color: #2a4f97; background: #eef3fd; }

.values-strip { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; }
.values-strip li { padding: 12px 30px; border: 1px solid rgba(31, 95, 214, .25); border-radius: 24px; font-size: 17px; letter-spacing: 3px; color: var(--c-primary); background: #f5f8ff; }
.job-list { display: grid; gap: 16px; max-width: 1100px; margin: 0 auto; }
.job { border: 1px solid #edf0f5; border-radius: 4px; background: #fff; transition: box-shadow .3s, border-color .3s; }
.job[open] { border-color: transparent; box-shadow: var(--shadow); }
.job summary { display: flex; align-items: center; gap: 20px; padding: 24px 28px; cursor: pointer; list-style: none; }
.job summary::-webkit-details-marker { display: none; }
.job-ico { width: 52px; height: 52px; flex: none; display: grid; place-items: center; border-radius: 50%; color: var(--c-primary); background: rgba(31, 95, 214, .08); }
.job-ico .icon { width: 26px; height: 26px; }
.job-title { flex: 1; min-width: 0; }
.job-title strong { display: block; font-size: 20px; }
.job-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.job-tags em { padding: 2px 10px; border-radius: 10px; font-style: normal; font-size: 12px; color: #5b6475; background: #f1f4f9; }
.job-toggle { width: 38px; height: 38px; flex: none; display: grid; place-items: center; border: 1px solid var(--c-line); border-radius: 50%; transition: transform .3s, background-color .3s, color .3s, border-color .3s; }
.job-toggle .icon { width: 18px; height: 18px; }
.job[open] .job-toggle { transform: rotate(45deg); color: #fff; border-color: var(--c-primary); background: var(--c-primary); }
.job-body { padding: 0 28px 28px 100px; }
.job-body h5 { margin-bottom: 10px; font-size: 16px; color: var(--c-primary); }
.job-body ol { padding-left: 1.4em; list-style: decimal; font-size: 15px; line-height: 2; color: var(--c-text-2); }
.job-body .btn { margin-top: 20px; height: 42px; }
.apply-box { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 20px 40px; padding: 40px 48px; border-radius: 6px; background: linear-gradient(120deg, #f3f7ff, #e8f0fe); }
.apply-box h3 { font-size: 24px; }
.apply-box p { max-width: 640px; margin-top: 8px; color: var(--c-text-2); }

.contact-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; }
.contact-card { position: relative; overflow: hidden; padding: 46px 34px 40px; border: 1px solid #edf0f5; border-radius: 6px; background: #fff; text-align: center; transition: transform .4s var(--ease), box-shadow .4s; }
.contact-card::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 4px; background: linear-gradient(90deg, var(--c-primary), var(--c-accent)); transform: scaleX(0); transition: transform .45s var(--ease); }
.contact-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.contact-card:hover::after { transform: scaleX(1); }
.contact-ico { width: 72px; height: 72px; display: grid; place-items: center; margin: 0 auto 22px; border-radius: 50%; color: #fff; background: linear-gradient(135deg, var(--c-primary), var(--c-primary-light)); box-shadow: 0 10px 22px rgba(31, 95, 214, .28); }
.contact-ico .icon { width: 32px; height: 32px; }
.contact-card h4 { font-size: 18px; color: var(--c-text-2); font-weight: 400; }
.contact-value { display: block; margin-top: 10px; font: 700 clamp(20px, 1.6vw, 26px)/1.5 var(--font-num); color: var(--c-text); word-break: break-all; }
.contact-note { margin-top: 10px; font-size: 14px; color: var(--c-muted); }
.contact-topics { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; }
.topic { display: flex; gap: 16px; padding: 28px 24px; border-radius: 4px; background: #fff; }
.topic > .icon { width: 36px; height: 36px; color: var(--c-accent); }
.topic h4 { margin-bottom: 6px; font-size: 18px; }
.topic p { font-size: 14px; line-height: 1.8; color: var(--c-text-2); }
.topic a { display: inline-flex; align-items: center; gap: 4px; margin-top: 8px; font-size: 14px; color: var(--c-primary); }
.topic a .icon { width: 14px; height: 14px; }

.not-found { display: grid; place-items: center; min-height: calc(100vh - var(--header-h) - 300px); padding: 80px 0; background: radial-gradient(ellipse at 50% 0%, rgba(31, 95, 214, .08), transparent 60%); text-align: center; }
.not-found-code { font: 700 clamp(100px, 14vw, 200px)/1 var(--font-num); color: transparent; background: linear-gradient(180deg, var(--c-primary), var(--c-sky)); -webkit-background-clip: text; background-clip: text; }
.not-found h1 { margin-top: 10px; font-size: clamp(22px, 2vw, 30px); }
.not-found p { margin-top: 12px; color: var(--c-text-2); }
.not-found-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 32px; }

/* 进入视口渐显（由 main.js 控制，仅作用于首屏以下元素） */
.reveal-pending { opacity: 0; transform: translateY(32px); }
.reveal-in { opacity: 1; transform: none; transition: opacity .8s var(--ease), transform .8s var(--ease); transition-delay: var(--d, 0ms); }

@keyframes bannerZoom { from { transform: scale(1.1); } to { transform: scale(1); } }

/* ========== 6. 响应式 ========== */
@media (min-width: 1680px) {
  :root { --maxw: 1560px; }
}

@media (max-width: 1279px) {
  :root { --header-h: 76px; --gutter: 32px; }
  .header-tel { display: none; }
  .nav-link { font-size: 16px; }
  .brand-name strong { font-size: 21px; }
  .mega-inner { grid-template-columns: 240px 1fr; gap: 32px; }
  .mega-grid--3 { grid-template-columns: repeat(2, 1fr); }
  .feature-grid.cols-4, .point-list, .value-grid, .values-grid, .cap-grid, .contact-topics, .fact-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .point:nth-child(2n), .fact:nth-child(2n) { border-right: 0; }
  .point:nth-child(n + 3) { border-top: 1px solid rgba(255, 255, 255, .12); }
  .fact:nth-child(n + 3) { border-top: 1px solid var(--c-line); }
  .news-row a { grid-template-columns: 90px minmax(0, 1fr) 240px; gap: 28px; }
  .footer-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); justify-content: stretch; }
}

@media (max-width: 1099px) {
  :root { --header-h: 64px; --gutter: 24px; }
  .main-nav { display: none; }
  .nav-toggle { display: block; }
  .brand-logo { width: 38px; height: 38px; }
  .intro-grid, .zz-item { grid-template-columns: minmax(0, 1fr); }
  .zz-item.is-rev .zz-pic { order: 0; }
  .feature-grid.cols-3, .scene-grid, .challenge-grid, .contact-grid, .card-grid.cols-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .arch.has-sides { grid-template-columns: minmax(0, 1fr); }
  .arch-side { padding: 10px; }
  .arch-side span { writing-mode: horizontal-tb; letter-spacing: 2px; }
  .arch-layer { grid-template-columns: minmax(0, 1fr); gap: 8px; }
  .arch-name { padding: 10px; }
  .flow { flex-direction: column; }
  .flow-arrow { width: auto; height: 40px; }
  .flow-arrow .icon { transform: rotate(90deg); }
  .flow .arch-chips li { flex: 1 1 auto; }
  .news-row a { grid-template-columns: 84px minmax(0, 1fr) 200px; gap: 24px; padding: 28px 0; }
  .about-visual-badge { left: 16px; bottom: -24px; }
  .job-body { padding-left: 28px; }
  .apply-box { padding: 30px 28px; }
}

@media (min-width: 640px) and (max-width: 1099px) {
  .tech-panels { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 767px) {
  :root { --header-h: 58px; --gutter: 18px; }
  body { font-size: 15px; }
  .brand-name strong { font-size: 19px; letter-spacing: 2px; }
  .brand-name small { display: none; }
  .hero { min-height: 500px; }
  .hero-title { letter-spacing: 2px; }
  .hero-link { height: 44px; margin-top: 30px; padding: 0 24px; font-size: 15px; }
  .hero-pager { bottom: 26px; gap: 14px; }
  .hero-count b { font-size: 24px; }
  .hero-dot { width: 32px; }
  .scroll-hint { display: none; }
  .pub-cards { grid-template-columns: minmax(0, 1fr); }
  .stat-num { font-size: 34px; }
  .ring-btn { width: 104px; height: 104px; font-size: 14px; }
  .tech-panel { min-height: 260px; }
  .feature-grid.cols-3, .feature-grid.cols-4, .scene-grid, .challenge-grid, .value-grid, .values-grid, .cap-grid, .contact-grid, .contact-topics, .card-grid.cols-2, .card-grid.cols-3, .point-list, .fact-grid, .check-list { grid-template-columns: minmax(0, 1fr); }
  .point, .fact { border-right: 0; }
  .point + .point { border-top: 1px solid rgba(255, 255, 255, .12); }
  .fact + .fact { border-top: 1px solid var(--c-line); }
  .stats-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 36px; }
  .feature-card, .scene-card, .challenge, .value-card, .values-card { padding: 28px 24px; }
  .page-banner-text { padding-bottom: 56px; }
  .subnav { margin-top: -56px; }
  .subnav-inner { min-height: 56px; }
  .subnav .crumbs { display: none; }
  .subnav-menu { margin-inline: -8px; }
  .subnav-link { line-height: 56px; font-size: 14px; }
  .news-row a { grid-template-columns: minmax(0, 1fr); gap: 14px; padding: 24px 0; }
  .news-row-pic { order: -1; }
  .news-row-date { display: flex; align-items: baseline; gap: 8px; padding: 0; border: 0; text-align: left; }
  .news-row-date strong { font-size: 28px; }
  .news-row-date small { margin: 0; }
  .news-row h3 { font-size: 18px; }
  .article-pager { grid-template-columns: minmax(0, 1fr); }
  .article-pager > :last-child { text-align: left; }
  .prose { font-size: 16px; }
  .job summary { gap: 14px; padding: 18px; }
  .job-ico { display: none; }
  .job-title strong { font-size: 18px; }
  .job-body { padding: 0 18px 22px; }
  .about-visual-badge { position: relative; left: 0; bottom: 0; margin-top: -30px; margin-inline: 16px; }
  .footer-top { flex-direction: column; align-items: flex-start; padding-top: 48px; }
  .footer-nav { gap: 24px 16px; }
  .footer-bottom-inner { flex-direction: column; align-items: center; text-align: center; }
  .back-top { right: 16px; bottom: 20px; width: 42px; height: 42px; }
  .cta-inner { padding: 44px 0; }
}

/* ========== 7. 动效偏好 ========== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; animation-delay: 0s !important; transition-duration: .01ms !important; transition-delay: 0s !important; }
  .hero-dot b { animation: none !important; }
  .float-words span { animation: none !important; opacity: .55; }
  .reveal-pending { opacity: 1; transform: none; }
}

@media print {
  .site-header, .mobile-nav, .back-top, .fp-dots, .subnav, .cta-band, .site-footer .footer-nav { display: none !important; }
  .page-inner main { padding-top: 0; }
  .page-banner { height: auto; padding: 24px 0; color: #000; background: none; }
  .page-banner-bg { display: none; }
}