@charset "UTF-8";
/* ==================================================================
   兰小集品牌官网 · 前台样式
   设计语言：东方植物学 · 留白 · 细线 · 低饱和
   断点：≥1200 桌面 / 992 小桌面 / 768 平板 / 480 手机
   ================================================================== */

:root {
    --bg:        #faf8f5;
    --bg-soft:   #f4f0ea;
    --bg-deep:   #ece5db;
    --white:     #ffffff;
    --ink:       #23211f;
    --ink-2:     #4a4540;
    --muted:     #8b837b;
    --line:      #e6dfd6;
    --line-2:    #d8cfc2;
    --accent:    #7a6484;
    --accent-d:  #5f4c68;
    --accent-l:  #f0eaf2;
    --gold:      #a88c6a;
    --green:     #5c7a5e;
    --accent-rgb: 122, 100, 132;
    --cta-a:     #2b2723;
    --cta-b:     #3a3038;
    --cta-c:     #4a3d50;
    --radius:    2px;
    --radius-lg: 4px;
    --shadow:    0 1px 2px rgba(35,33,31,.04), 0 8px 30px rgba(35,33,31,.06);
    --shadow-lg: 0 2px 6px rgba(35,33,31,.05), 0 24px 60px rgba(35,33,31,.10);
    --ease:      cubic-bezier(.4, 0, .2, 1);
    --serif:     "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", Georgia, serif;
    --sans:      -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
                 "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    --container: 1220px;
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; overflow-x: clip; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: var(--sans);
    font-size: 15px;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; display: block; border: 0; }
a { color: inherit; text-decoration: none; transition: color .25s var(--ease); }
a:hover { color: var(--accent); }
h1, h2, h3, h4 { font-family: var(--serif); font-weight: 500; line-height: 1.4; margin: 0; letter-spacing: .02em; }
p { margin: 0; }
ul, ol, dl, dd { margin: 0; padding: 0; list-style: none; }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: 0; padding: 0; }
mark { background: rgba(168,140,106,.22); color: inherit; padding: 0 2px; border-radius: 2px; }
table { border-collapse: collapse; width: 100%; }
::selection { background: var(--accent); color: #fff; }

.sr-only {
    position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.skip-link {
    position: absolute; left: 12px; top: -9999px; z-index: 999;
    background: var(--ink); color: #fff; padding: 10px 18px;
}
.skip-link:focus { top: 12px; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 32px; }

/* ---------- 按钮 ---------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    height: 46px; padding: 0 32px; font-size: 14px; letter-spacing: .06em;
    border: 1px solid transparent; border-radius: var(--radius);
    transition: all .3s var(--ease); white-space: nowrap;
}
.btn--dark  { background: var(--ink); color: #fff; }
.btn--dark:hover  { background: var(--accent); color: #fff; }
.btn--light { background: #fff; color: var(--ink); }
.btn--light:hover { background: var(--accent); color: #fff; }
.btn--line  { border-color: var(--line-2); color: var(--ink); background: transparent; }
.btn--line:hover  { border-color: var(--accent); color: var(--accent); background: rgba(var(--accent-rgb),.05); }
.btn--ghost { border-color: rgba(255,255,255,.55); color: #fff; }
.btn--ghost:hover { background: rgba(255,255,255,.14); color: #fff; }
.btn--sm { height: 38px; padding: 0 20px; font-size: 13px; }

/* ==================================================================
   头部
   ================================================================== */
.site-header { position: sticky; top: 0; z-index: 120; background: transparent; border-bottom: 1px solid var(--line);
    transition: box-shadow .3s var(--ease), background .3s var(--ease);
    /* 防御：确保菜单栏在任意滚动状态下都常驻可见，绝不被隐藏/滑出 */
    transform: none !important; }
/* 吸顶导航背景：使用半透明纯色，避免 backdrop-filter 在 PC 端滚动时重绘闪动 */
.site-header::before { content: ""; position: absolute; inset: 0; z-index: -1;
    background: rgba(250,248,245,.96);
    -webkit-backdrop-filter: none;
    backdrop-filter: none; }

.topbar { background: var(--ink); color: rgba(255,255,255,.72); font-size: 12.5px; letter-spacing: .04em; }
.topbar__inner { display: flex; align-items: center; justify-content: space-between; height: 36px; }
.topbar__slogan { color: rgba(255,255,255,.8); }
.topbar__links { display: flex; align-items: center; gap: 22px; }
.topbar__links a:hover { color: #fff; }
.topbar__phone { display: inline-flex; align-items: center; gap: 6px; color: var(--gold); }

.navbar__inner { display: flex; align-items: center; gap: 18px; height: 100px; }
/* 抽屉容器：桌面端透明（display:contents 不影响布局），移动端变为固定层并裁剪溢出 */
.nav-drawer { display: contents; }
/* 顶部 LOGO：高度 >80px，宽度按原始比例自适应 */
.brand img { height: 84px; width: auto; }

.mainnav { flex: 1; min-width: 0; margin-right: 10px; }
.mainnav__list { display: flex; align-items: center; gap: 2px; }
.mainnav__item { position: relative; flex-shrink: 0; }
.mainnav__item > a {
    display: block; padding: 0 13px; height: 100px; line-height: 100px;
    font-size: 15px; letter-spacing: .02em; position: relative;
    white-space: nowrap;
}
.mainnav__item > a::after {
    content: ""; position: absolute; left: 16px; right: 16px; bottom: 38px; height: 1px;
    background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform .32s var(--ease);
}
.mainnav__item:hover > a::after, .mainnav__item.is-active > a::after { transform: scaleX(1); }
.mainnav__item.is-active > a { color: var(--accent); }

.submenu {
    position: absolute; top: 100%; left: 0; min-width: 168px; background: #fff;
    border: 1px solid var(--line); box-shadow: var(--shadow); padding: 8px 0;
    opacity: 0; visibility: hidden; transform: translateY(8px);
    transition: all .28s var(--ease);
}
.mainnav__item:hover .submenu { opacity: 1; visibility: visible; transform: translateY(0); }
.submenu a { display: block; padding: 9px 20px; font-size: 14px; color: var(--ink-2); }
.submenu a:hover { background: var(--bg-soft); color: var(--accent); }

.navbar__tools { display: flex; align-items: center; gap: 12px; }
.searchbox { position: relative; display: flex; align-items: center; flex-shrink: 0;
    border: 1px solid var(--line-2); border-radius: 22px; height: 38px; padding: 0 6px 0 14px;
    background: #fff; transition: border-color .25s var(--ease), width .3s var(--ease); width: 186px; }
.searchbox:focus-within { width: 216px; }
.searchbox:focus-within { border-color: var(--accent); }
.searchbox input { border: 0; outline: 0; background: none; width: 100%; font-size: 13.5px; }
.searchbox input::placeholder { color: #b3aca4; }
.searchbox button { width: 28px; height: 28px; display: grid; place-items: center; color: var(--muted); }
.searchbox button:hover { color: var(--accent); }
.searchbox__suggest {
    position: absolute; top: 46px; left: 0; right: 0; background: #fff; border: 1px solid var(--line);
    box-shadow: var(--shadow); padding: 6px 0; max-height: 320px; overflow: auto; z-index: 30;
}
.searchbox__suggest a { display: block; padding: 9px 16px; font-size: 13.5px; color: var(--ink-2); }
.searchbox__suggest a:hover { background: var(--bg-soft); color: var(--accent); }

.navtoggle { display: none; width: 40px; height: 40px; flex-direction: column;
    justify-content: center; align-items: center; gap: 5px; }
.navtoggle span { display: block; width: 20px; height: 1.5px; background: var(--ink); transition: .3s var(--ease); }
.navtoggle.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.navtoggle.is-open span:nth-child(2) { opacity: 0; }
.navtoggle.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* 滚动状态：仅保留阴影；整体高度不变，避免高度/顶栏折叠导致上下抖动 */
.site-header.is-stuck { box-shadow: 0 4px 22px rgba(58,48,56,.07); background: rgba(250,248,245,.97); }
/* 向下滚动时通过 translateY(-100%) 把整个 header 平滑滑出视野，向上滚动时滑回 */

/* 面包屑 */
.breadcrumb { background: var(--bg-soft); border-bottom: 1px solid var(--line); font-size: 13px; color: var(--muted); }
.breadcrumb ol { display: flex; flex-wrap: wrap; align-items: center; height: 46px; gap: 8px; }
.breadcrumb li { display: inline-flex; align-items: center; gap: 8px; }
.breadcrumb .sep { color: var(--line-2); }
.breadcrumb a:hover { color: var(--accent); }

/* ==================================================================
   首页 · 主视觉
   ================================================================== */
.hero { position: relative; overflow: hidden; background: var(--bg-deep); }
.hero__viewport { position: relative; height: clamp(420px, 72vh, 720px); }
.hero__slide { position: absolute; inset: 0; opacity: 0; transition: opacity 1.1s var(--ease); pointer-events: none; }
.hero__slide.is-active { opacity: 1; pointer-events: auto; }
.hero__slide img { width: 100%; height: 100%; object-fit: cover;
    transform: scale(1.06); transition: transform 7s linear; }
.hero__slide.is-active img { transform: scale(1); }
.hero__mask { position: absolute; inset: 0;
    background: linear-gradient(90deg, rgba(28,25,23,.62) 0%, rgba(28,25,23,.30) 46%, rgba(28,25,23,.06) 100%); }
.hero__caption { position: absolute; inset: 0; display: flex; flex-direction: column;
    justify-content: center; align-items: flex-start; color: #fff; }
.hero__eyebrow { font-size: 12px; letter-spacing: .38em; color: rgba(255,255,255,.72);
    text-transform: uppercase; margin-bottom: 18px; }
.hero__title { font-size: clamp(30px, 4.4vw, 58px); font-weight: 500; letter-spacing: .06em;
    line-height: 1.28; text-shadow: 0 2px 24px rgba(0,0,0,.22); }
.hero__sub { margin: 18px 0 34px; font-size: clamp(14px, 1.35vw, 17px);
    color: rgba(255,255,255,.86); max-width: 30em; letter-spacing: .04em; }
.hero__dots { position: absolute; left: 0; right: 0; bottom: 34px; display: flex;
    justify-content: center; gap: 10px; z-index: 5; }
.hero__dots button { width: 30px; height: 2px; background: rgba(255,255,255,.4); transition: .3s var(--ease); }
.hero__dots button.is-active { background: #fff; width: 48px; }
.hero__scroll { position: absolute; right: 40px; bottom: 34px; width: 1px; height: 52px;
    background: rgba(255,255,255,.28); overflow: hidden; }
.hero__scroll span { display: block; width: 1px; height: 18px; background: #fff; animation: scrolldown 2.2s infinite; }
@keyframes scrolldown { 0% { transform: translateY(-20px); } 100% { transform: translateY(52px); } }

/* ---------- 信任背书 ---------- */
.trust { background: var(--ink); color: #fff; }
.trust__grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.trust__item { display: flex; align-items: center; gap: 16px; padding: 34px 24px;
    border-right: 1px solid rgba(255,255,255,.08); }
.trust__item:last-child { border-right: 0; }
.trust__item strong { font-family: var(--serif); font-size: 40px; font-weight: 400;
    line-height: 1; color: var(--gold); }
.trust__item strong i { font-size: 15px; font-style: normal; margin-left: 2px; }
.trust__item span { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,.9); }
.trust__item em { font-style: normal; font-size: 12.5px; color: rgba(255,255,255,.5); letter-spacing: .02em; }

/* ---------- 通用区块 ---------- */
.section { padding: 96px 0; }
.section--products { background: var(--bg); }
.section--tech { background: var(--bg-soft); }
.section--cert { background: var(--bg); }
.section--library { background: var(--bg-soft); }
.section--faq { background: var(--bg); }
.section--geo { background: var(--bg-soft); padding: 64px 0; }

.sechead { margin-bottom: 52px; }
.sechead__en { font-size: 11.5px; letter-spacing: .42em; color: var(--gold);
    text-transform: uppercase; margin-bottom: 12px; }
.sechead__cn { font-size: clamp(23px, 2.4vw, 32px); letter-spacing: .06em; }
.sechead__desc { margin-top: 16px; color: var(--muted); max-width: 46em; font-size: 14.5px; }
.sechead--center { text-align: center; }
.sechead--center .sechead__desc { margin-left: auto; margin-right: auto; }
.sechead--row { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; }
.sechead__more { font-size: 14px; color: var(--muted); letter-spacing: .04em; white-space: nowrap; }
.sechead__more:hover { color: var(--accent); }

/* ---------- 产品卡 ---------- */
.plist { display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px; }
.pcard { background: #fff; border: 1px solid var(--line); display: flex; flex-direction: column;
    transition: box-shadow .4s var(--ease), transform .4s var(--ease); }
.pcard:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.pcard__media { position: relative; display: block; overflow: hidden; background: var(--bg-soft); aspect-ratio: 4/3; }
.pcard__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.pcard:hover .pcard__media img { transform: scale(1.05); }
.pcard__cert { position: absolute; left: 0; bottom: 0; background: rgba(35,33,31,.82); color: #fff;
    font-size: 11.5px; letter-spacing: .06em; padding: 6px 14px; }
.pcard__body { padding: 30px 32px 34px; display: flex; flex-direction: column; flex: 1; }
.pcard__name { font-size: 21px; letter-spacing: .04em; }
.pcard__sub { margin-top: 8px; color: var(--accent); font-size: 13.5px; letter-spacing: .04em; }
.pcard__effect { margin-top: 14px; color: var(--muted); font-size: 14px; line-height: 1.85; }
.pcard__spec { margin-top: 20px; border-top: 1px dashed var(--line); padding-top: 18px;
    display: flex; flex-wrap: wrap; gap: 8px 28px; }
.pcard__spec > div { display: flex; gap: 8px; font-size: 13px; }
.pcard__spec dt { color: #b3aca4; }
.pcard__spec dd { color: var(--ink-2); }
.pcard__foot { margin-top: auto; padding-top: 24px; display: flex; align-items: center;
    justify-content: space-between; gap: 16px; }
.pcard__price { font-family: var(--serif); font-size: 26px; color: var(--ink); }

/* ---------- 技术区 ---------- */
.tech__inner { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
.tech__media { margin: 0; position: relative; }
.tech__media img { width: 100%; aspect-ratio: 4/3; object-fit: cover; background: var(--bg-soft); }
.tech__media::after { content: ""; position: absolute; inset: 16px -16px -16px 16px;
    border: 1px solid var(--line-2); z-index: -1; }
.tech__media figcaption { margin-top: 14px; font-size: 12.5px; color: var(--muted); letter-spacing: .06em; }
.tech__lead { margin: 20px 0 26px; color: var(--ink-2); font-size: 15px; line-height: 2; }
.tech__lead strong { color: var(--accent); font-weight: 500; }
.tech__list { margin-bottom: 32px; }
.tech__list li { position: relative; padding: 13px 0 13px 0; border-bottom: 1px solid var(--line);
    font-size: 14.5px; color: var(--ink-2); display: flex; gap: 16px; align-items: baseline; }
.tech__list span { flex: 0 0 58px; font-size: 12px; letter-spacing: .1em; color: var(--gold); }

/* ---------- 资质卡 ---------- */
.certgrid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.certcard { background: #fff; border: 1px solid var(--line); padding: 34px 26px;
    text-align: center; transition: .35s var(--ease); }
.certcard:hover { border-color: var(--accent); transform: translateY(-3px); box-shadow: var(--shadow); }
.certcard h3 { font-size: 16px; color: var(--ink); letter-spacing: .06em; }
.certcard__no { margin: 16px 0 12px; font-family: var(--serif); font-size: 17px; color: var(--accent);
    letter-spacing: .02em; word-break: break-all; }
.certcard p:last-child { font-size: 13px; color: var(--muted); line-height: 1.8; }
.cert__more { margin-top: 40px; text-align: center; }

/* ---------- 文章卡片 ---------- */
.agrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.acard { background: #fff; border: 1px solid var(--line); transition: .38s var(--ease); display: flex; flex-direction: column; }
.acard:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.acard__thumb { display: block; overflow: hidden; aspect-ratio: 16/10; background: var(--bg-soft); }
.acard__thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.acard:hover .acard__thumb img { transform: scale(1.06); }
.acard__body { padding: 24px 26px 26px; display: flex; flex-direction: column; flex: 1; }
.acard__title { font-size: 17px; line-height: 1.6; letter-spacing: .02em; }
.acard__title a { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.acard__desc { margin-top: 12px; font-size: 13.5px; color: var(--muted); line-height: 1.85;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.acard__meta { margin-top: auto; padding-top: 20px; display: flex; align-items: center; gap: 14px;
    font-size: 12px; color: #b3aca4; letter-spacing: .04em; }
.acard__tag { color: var(--accent); background: var(--accent-l); padding: 2px 9px; border-radius: 2px; }
.acard__views { margin-left: auto; }

/* 列表型卡片：thumb 锁 16/10 比例，body 自适应剩余高度，封面图永不被裁 */
.acard--list { flex-direction: row; align-items: stretch; }
.acard--list .acard__thumb { flex: 0 0 288px; aspect-ratio: 16/10; align-self: flex-start; overflow: hidden; }
.acard--list .acard__thumb img { object-fit: cover; }
.acard--list .acard__body { padding: 28px 32px; }
.acard--list .acard__title { font-size: 19px; }
.acard--list .acard__desc { -webkit-line-clamp: 3; }

/* ---------- FAQ ---------- */
.faq__inner { display: grid; grid-template-columns: 340px 1fr; gap: 64px; align-items: start; }
.faq__tip { margin: 18px 0 26px; color: var(--muted); font-size: 14px; line-height: 1.9; }
.faq__list { border-top: 1px solid var(--line); }
.faq__item { border-bottom: 1px solid var(--line); }
.faq__item summary { list-style: none; cursor: pointer; padding: 22px 40px 22px 0; position: relative;
    font-size: 16px; color: var(--ink); font-family: var(--serif); letter-spacing: .02em; }
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after { content: ""; position: absolute; right: 6px; top: 50%; width: 11px; height: 11px;
    border-right: 1px solid var(--muted); border-bottom: 1px solid var(--muted);
    transform: translateY(-70%) rotate(45deg); transition: transform .3s var(--ease); }
.faq__item[open] summary { color: var(--accent); }
.faq__item[open] summary::after { transform: translateY(-30%) rotate(225deg); border-color: var(--accent); }
.faq__answer { padding: 0 20px 26px 0; color: var(--ink-2); font-size: 14.5px; line-height: 2; }

/* ---------- 地域 ---------- */
.geochips { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.geochips a { display: inline-block; padding: 9px 24px; border: 1px solid var(--line-2);
    background: #fff; font-size: 14px; letter-spacing: .06em; transition: .28s var(--ease); }
.geochips a:hover { border-color: var(--accent); color: var(--accent); }
.geochips .is-more { background: var(--ink); color: #fff; border-color: var(--ink); }
.geochips .is-more:hover { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ---------- CTA ---------- */
.cta { background: linear-gradient(135deg, var(--cta-a) 0%, var(--cta-b) 60%, var(--cta-c) 100%); color: #fff; padding: 84px 0; }
.cta__inner { text-align: center; }
.cta h2 { font-size: clamp(21px, 2.4vw, 30px); letter-spacing: .06em; }
.cta p { margin: 16px 0 34px; color: rgba(255,255,255,.66); letter-spacing: .1em; font-size: 14px; }
.cta__btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ==================================================================
   内容页通用
   ================================================================== */
.pagehead { background: var(--bg-soft); border-bottom: 1px solid var(--line); padding: 62px 0; }
.pagehead__en { font-size: 11.5px; letter-spacing: .42em; color: var(--gold); text-transform: uppercase; }
.pagehead h1 { margin-top: 12px; font-size: clamp(25px, 3vw, 36px); letter-spacing: .06em; }
.pagehead__desc { margin-top: 16px; color: var(--muted); font-size: 14.5px; max-width: 52em; }

.subnav { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.subnav a { padding: 7px 20px; border: 1px solid var(--line-2); background: #fff;
    font-size: 13.5px; transition: .26s var(--ease); }
.subnav a:hover, .subnav a.is-active { background: var(--accent); border-color: var(--accent); color: #fff; }

.layout { display: grid; grid-template-columns: 1fr 320px; gap: 56px; padding: 72px 0 96px; align-items: start; }
.layout--full { grid-template-columns: 1fr; }

.layout__main { min-width: 0; }
.alist { display: flex; flex-direction: column; gap: 24px; }
.slist { display: block; }
.empty { text-align: center; padding: 90px 20px; color: var(--muted); }
.empty svg { margin: 0 auto 18px; color: var(--line-2); }

/* 侧栏 */
.aside { position: sticky; top: 130px; display: flex; flex-direction: column; gap: 28px; }
.widget { background: #fff; border: 1px solid var(--line); padding: 26px 24px; }
.widget__title { font-size: 16px; letter-spacing: .06em; padding-bottom: 14px;
    border-bottom: 1px solid var(--line); margin-bottom: 16px; position: relative; }
.widget__title::after { content: ""; position: absolute; left: 0; bottom: -1px; width: 34px; height: 1px; background: var(--accent); }
.widget__list li { padding: 11px 0; border-bottom: 1px dashed var(--line); font-size: 14px; line-height: 1.7; }
.widget__list li:last-child { border-bottom: 0; }
.widget__list a { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
    overflow: hidden; color: var(--ink-2); }
.widget__list a:hover { color: var(--accent); }
.widget__rank { display: inline-block; width: 18px; color: var(--gold); font-family: var(--serif); }
.widget__product { display: flex; gap: 14px; padding: 12px 0; border-bottom: 1px dashed var(--line); }
.widget__product:last-child { border-bottom: 0; }
.widget__product img { width: 74px; height: 74px; object-fit: cover; background: var(--bg-soft); flex: 0 0 74px; }
.widget__product h4 { font-size: 14px; line-height: 1.6; font-family: var(--sans); font-weight: 500; }
.widget__product p { font-size: 12.5px; color: var(--muted); margin-top: 4px; }
.widget__product .price { color: var(--accent); font-family: var(--serif); font-size: 16px; }
.widget--cta { background: var(--ink); color: #fff; text-align: center; padding: 32px 24px; }
.widget--cta h3 { font-size: 17px; color: #fff; }
.widget--cta p { font-size: 13px; color: rgba(255,255,255,.6); margin: 12px 0 20px; }

/* ==================================================================
   文章详情
   ================================================================== */
.article { background: #fff; border: 1px solid var(--line); padding: 52px 60px 60px; }
.article__head { border-bottom: 1px solid var(--line); padding-bottom: 26px; margin-bottom: 34px; }
.article__title { font-size: clamp(23px, 2.6vw, 33px); line-height: 1.5; letter-spacing: .03em; }
.article__sub { margin-top: 10px; color: var(--muted); font-size: 15px; }
.article__meta { margin-top: 20px; display: flex; flex-wrap: wrap; gap: 20px;
    font-size: 12.5px; color: var(--muted); letter-spacing: .04em; }
.article__meta span { display: inline-flex; align-items: center; gap: 6px; }
.article__summary { background: var(--bg-soft); border-left: 2px solid var(--accent);
    padding: 18px 24px; color: var(--ink-2); font-size: 14.5px; line-height: 1.95; margin-bottom: 34px; }

.article__toc { border: 1px solid var(--line); background: var(--bg); padding: 20px 24px; margin-bottom: 36px; }
.article__toc h2 { font-size: 14px; letter-spacing: .12em; color: var(--gold); margin-bottom: 12px; }
.article__toc ol { counter-reset: toc; }
.article__toc li { counter-increment: toc; font-size: 14px; padding: 5px 0; }
.article__toc li::before { content: counter(toc, decimal-leading-zero); color: var(--line-2);
    margin-right: 10px; font-family: var(--serif); }
.article__toc li.lv3 { padding-left: 26px; font-size: 13.5px; }
.article__toc a { color: var(--ink-2); }
.article__toc a:hover { color: var(--accent); }

/* 正文排版 */
.prose { font-size: 15.5px; line-height: 2.05; color: var(--ink-2); }
.prose > * + * { margin-top: 1.15em; }
.prose h2 { font-size: 21px; color: var(--ink); margin-top: 2.2em; padding-left: 14px;
    border-left: 3px solid var(--accent); letter-spacing: .04em; line-height: 1.5; }
.prose h3 { font-size: 17.5px; color: var(--ink); margin-top: 1.9em; letter-spacing: .03em; }
.prose h3::before { content: "—"; color: var(--gold); margin-right: 8px; }
.prose p { text-align: justify; }
.prose strong { color: var(--ink); font-weight: 600; }
.prose a { color: var(--accent); border-bottom: 1px solid rgba(var(--accent-rgb),.35); }
/* 正文自动内链：延伸阅读等《文章名》指向站内对应文章 */
.prose a.art-inlink { color: var(--accent); border-bottom: 1px dashed var(--gold); text-decoration: none; padding: 0 1px; transition: background .15s; }
.prose a.art-inlink:hover { background: rgba(198,160,94,.12); border-bottom-style: solid; }
.prose ul, .prose ol { padding-left: 4px; }
.prose ul li { position: relative; padding-left: 20px; margin: 8px 0; }
.prose ul li::before { content: ""; position: absolute; left: 4px; top: .82em;
    width: 5px; height: 5px; border-radius: 50%; background: var(--gold); }
.prose ol { counter-reset: li; }
.prose ol li { position: relative; padding-left: 28px; margin: 8px 0; counter-increment: li; }
.prose ol li::before { content: counter(li) "."; position: absolute; left: 2px;
    color: var(--gold); font-family: var(--serif); }
.prose img { margin: 1.6em auto; border: 1px solid var(--line); }
.prose figure { margin: 1.6em auto; text-align: center; }
.prose figure img { margin: 0 auto; border: 1px solid var(--line); }
.prose figcaption { margin-top: 10px; font-size: 12.5px; color: var(--muted); letter-spacing: .04em; line-height: 1.6; }
.prose blockquote { border-left: 2px solid var(--gold); background: var(--bg-soft);
    padding: 16px 24px; color: var(--muted); font-size: 14.5px; }
.prose table { margin: 1.6em 0; font-size: 14px; border: 1px solid var(--line); background: #fff; }
.prose th, .prose td { border: 1px solid var(--line); padding: 12px 16px; text-align: left; }
.prose th { background: var(--bg-soft); color: var(--ink); font-weight: 500; }
.prose tbody tr:nth-child(even) { background: rgba(244,240,234,.5); }
.prose code { background: var(--bg-deep); padding: 2px 7px; border-radius: 2px;
    font-size: .92em; font-family: Consolas, Monaco, monospace; }
.prose pre { background: var(--cta-a); color: #e8e2da; padding: 20px 24px; overflow: auto; font-size: 13.5px; }
.prose pre code { background: none; color: inherit; padding: 0; }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 2.4em 0; }
.prose .table-wrap { overflow-x: auto; }

.article__tags { margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--line);
    display: flex; flex-wrap: wrap; gap: 10px; align-items: center; font-size: 13px; color: var(--muted); }
.article__tags a { padding: 4px 14px; background: var(--bg-soft); color: var(--ink-2); }
.article__tags a:hover { background: var(--accent); color: #fff; }

.article__nav { margin-top: 30px; display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.article__nav a, .article__nav span { display: block; padding: 18px 22px; border: 1px solid var(--line);
    background: var(--bg); font-size: 14px; color: var(--ink-2); }
.article__nav a:hover { border-color: var(--accent); color: var(--accent); }
.article__nav em { display: block; font-style: normal; font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.article__nav .next { text-align: right; }

.related { margin-top: 56px; }
.related__title { font-size: 18px; letter-spacing: .06em; margin-bottom: 24px;
    padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.related__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.related__grid a { display: flex; gap: 8px; padding: 12px 16px; background: var(--bg);
    border: 1px solid var(--line); font-size: 14px; color: var(--ink-2); }
.related__grid a:hover { border-color: var(--accent); color: var(--accent); }

.disclaimer { margin-top: 34px; padding: 16px 20px; background: var(--bg-soft);
    font-size: 12.5px; color: var(--muted); line-height: 1.9; }

/* ==================================================================
   产品页
   ================================================================== */
.pdetail { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; padding: 64px 0 80px; align-items: start; }
.pgallery { position: sticky; top: 130px; }
.pinfo { min-width: 0; }
.pgallery__main { background: #fff; border: 1px solid var(--line); overflow: hidden; }
.pgallery__main img { width: 100%; aspect-ratio: 1/1; object-fit: cover; background: var(--bg-soft); }
.pgallery__thumbs { display: flex; gap: 12px; margin-top: 14px; flex-wrap: wrap; }
.pgallery__thumbs button { width: 78px; height: 78px; border: 1px solid var(--line); overflow: hidden; background: #fff; }
.pgallery__thumbs button.is-active { border-color: var(--accent); }
.pgallery__thumbs img { width: 100%; height: 100%; object-fit: cover; background: var(--bg-soft); }

.pinfo__cert { display: inline-flex; align-items: center; gap: 8px; background: var(--accent-l);
    color: var(--accent-d); font-size: 12.5px; padding: 6px 14px; letter-spacing: .04em; }
.pinfo h1 { margin: 18px 0 10px; font-size: clamp(24px, 2.8vw, 34px); letter-spacing: .04em; line-height: 1.45; }
.pinfo__sub { color: var(--accent); font-size: 15px; letter-spacing: .04em; }
.pinfo__price { margin: 26px 0; display: flex; align-items: baseline; gap: 12px;
    padding-bottom: 26px; border-bottom: 1px solid var(--line); }
.pinfo__price b { font-family: var(--serif); font-size: 40px; font-weight: 400; color: var(--ink); }
.pinfo__price small { color: var(--muted); font-size: 13px; }
.pinfo__effect { color: var(--ink-2); font-size: 15px; line-height: 2; margin-bottom: 26px; }
.pinfo__params { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line);
    border: 1px solid var(--line); margin-bottom: 32px; }
.pinfo__params > div { background: #fff; padding: 16px 20px; }
.pinfo__params dt { font-size: 12px; color: var(--muted); letter-spacing: .06em; }
.pinfo__params dd { margin-top: 6px; font-size: 14px; color: var(--ink); word-break: break-all; }
.pinfo__buy { display: flex; gap: 14px; flex-wrap: wrap; }
.pinfo__note { margin-top: 22px; font-size: 12.5px; color: var(--muted); line-height: 1.9; }

.ptabs { border-top: 1px solid var(--line); background: var(--bg-soft); padding: 72px 0 92px; }
.ptabs__nav { display: flex; gap: 4px; border-bottom: 1px solid var(--line-2); margin-bottom: 44px; flex-wrap: wrap; }
.ptabs__nav button { padding: 14px 30px; font-size: 15px; color: var(--muted);
    border-bottom: 2px solid transparent; margin-bottom: -1px; letter-spacing: .04em; }
.ptabs__nav button.is-active { color: var(--accent); border-bottom-color: var(--accent); }
.ptabs__panel { display: none; background: #fff; border: 1px solid var(--line); padding: 44px 52px; }
.ptabs__panel.is-active { display: block; animation: fadeup .5s var(--ease); }
@keyframes fadeup { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

/* ==================================================================
   搜索页
   ================================================================== */
.searchhero { background: var(--bg-soft); border-bottom: 1px solid var(--line); padding: 56px 0; }
.searchhero h1 { font-size: 26px; letter-spacing: .06em; }
.bigsearch { margin-top: 26px; display: flex; max-width: 660px; border: 1px solid var(--line-2); background: #fff; }
.bigsearch input { flex: 1; border: 0; outline: 0; padding: 0 22px; height: 52px; font-size: 15px; background: none; }
.bigsearch button { width: 116px; background: var(--ink); color: #fff; font-size: 15px; letter-spacing: .1em;
    transition: background .3s var(--ease); }
.bigsearch button:hover { background: var(--accent); }
.hotwords { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 10px; align-items: center;
    font-size: 13px; color: var(--muted); }
.hotwords a { padding: 3px 12px; background: #fff; border: 1px solid var(--line); }
.hotwords a:hover { border-color: var(--accent); color: var(--accent); }
.searchstat { font-size: 13.5px; color: var(--muted); margin-bottom: 24px; }
.sresult { border-bottom: 1px solid var(--line); padding: 24px 0; }
.sresult h3 { font-size: 18px; line-height: 1.6; }
.sresult p { margin-top: 10px; font-size: 14px; color: var(--muted); line-height: 1.9; }
.sresult__meta { margin-top: 12px; font-size: 12.5px; color: #b3aca4; display: flex; gap: 16px; }
.sresult__url { color: var(--green); font-size: 12.5px; }

/* ==================================================================
   地域页 / 单页 / 网站地图
   ================================================================== */
.geogrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.geocard { background: #fff; border: 1px solid var(--line); padding: 30px 28px; transition: .34s var(--ease); }
.geocard:hover { border-color: var(--accent); box-shadow: var(--shadow); transform: translateY(-3px); }
.geocard h2, .geocard h3 { font-size: 19px; letter-spacing: .06em; }
.geocard__code { font-size: 12px; color: var(--gold); letter-spacing: .1em; margin-top: 6px; }
.geocard p { margin-top: 14px; font-size: 13.5px; color: var(--muted); line-height: 1.9;
    display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

.brandblock { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; padding: 84px 0; }
.brandblock:nth-child(even) .brandblock__media { order: 2; }
.brandblock__media img { width: 100%; aspect-ratio: 4/3; object-fit: cover; background: var(--bg-soft); }
.brandblock h2 { font-size: clamp(21px, 2.3vw, 29px); letter-spacing: .06em; margin-bottom: 18px; }
.brandblock p { color: var(--ink-2); line-height: 2.05; font-size: 15px; }
.valuegrid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 44px; }
.valuecard { border: 1px solid var(--line); background: #fff; padding: 30px 26px; }
.valuecard b { font-family: var(--serif); font-size: 13px; letter-spacing: .3em; color: var(--gold); }
.valuecard h3 { font-size: 18px; margin: 12px 0 10px; }
.valuecard p { font-size: 13.5px; color: var(--muted); line-height: 1.85; }

.contactgrid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; padding: 72px 0 92px; align-items: start; }
.contactinfo { min-width: 0; }
.brandblock__text { min-width: 0; }
.infolist li { display: flex; gap: 18px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.infolist b { flex: 0 0 76px; font-weight: 500; color: var(--muted); font-size: 13.5px; }
.infolist span { color: var(--ink-2); font-size: 14.5px; }
.formcard { background: #fff; border: 1px solid var(--line); padding: 40px 44px; }
.formrow { margin-bottom: 20px; }
.formrow label { display: block; font-size: 13.5px; color: var(--ink-2); margin-bottom: 8px; }
.formrow label i { color: #c0655f; font-style: normal; margin-left: 3px; }
.formrow input, .formrow textarea, .formrow select {
    width: 100%; border: 1px solid var(--line-2); background: var(--bg); padding: 12px 16px;
    font-size: 14px; outline: 0; transition: border-color .25s var(--ease); border-radius: var(--radius);
}
.formrow input:focus, .formrow textarea:focus { border-color: var(--accent); background: #fff; }
.formrow textarea { resize: vertical; min-height: 128px; line-height: 1.8; }
.form-honey { position: absolute; left: -9999px; }
.formtip { font-size: 13px; margin-top: 14px; min-height: 20px; }
.formtip.ok { color: var(--green); }
.formtip.err { color: #c0655f; }

.mapgrid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px; }
.mapcol h2 { font-size: 18px; padding-bottom: 12px; border-bottom: 1px solid var(--line); margin-bottom: 16px; }
.mapcol li { padding: 7px 0; font-size: 14px; color: var(--ink-2); border-bottom: 1px dashed var(--line); }

/* ---------- 分页 ---------- */
.pager { margin-top: 48px; display: flex; align-items: center; justify-content: center;
    gap: 8px; flex-wrap: wrap; font-size: 14px; }
.pager__btn, .pager__num { display: inline-flex; align-items: center; justify-content: center;
    min-width: 40px; height: 40px; padding: 0 14px; border: 1px solid var(--line-2);
    background: #fff; color: var(--ink-2); transition: .25s var(--ease); }
.pager__btn:hover, .pager__num:hover { border-color: var(--accent); color: var(--accent); }
.pager__num.is-current { background: var(--accent); border-color: var(--accent); color: #fff; }
.pager__btn.is-disabled { color: #c7c0b8; background: var(--bg-soft); cursor: not-allowed; }
.pager__gap { color: var(--muted); padding: 0 4px; }
.pager__total { margin-left: 12px; color: var(--muted); font-size: 13px; }

/* ==================================================================
   页脚
   ================================================================== */
.site-footer { background: var(--ink); color: rgba(255,255,255,.62); font-size: 13.5px; margin-top: 0; }
.footer__top { display: grid; grid-template-columns: 1.2fr 2fr 1.2fr; gap: 56px; padding: 68px 32px 52px; }
/* 底部 LOGO：高度 >80px，宽度按原始比例自适应（保持白色反相以契合深色页脚） */
.footer__brand img { height: 84px; width: auto; filter: brightness(0) invert(1); opacity: .92; }
.footer__desc { margin: 20px 0 22px; line-height: 1.95; color: rgba(255,255,255,.5); }
.footer__badges { display: flex; flex-wrap: wrap; gap: 8px; }
.footer__badges li { font-size: 11.5px; padding: 4px 11px; border: 1px solid rgba(255,255,255,.16);
    color: rgba(255,255,255,.62); letter-spacing: .04em; }
.footer__nav { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.footer__col h3 { font-size: 14.5px; color: #fff; margin-bottom: 16px; font-family: var(--sans); font-weight: 500; }
.footer__col li { padding: 5px 0; }
.footer__col a:hover, .footer__contact a:hover { color: var(--gold); }
.footer__contact h3 { font-size: 14.5px; color: #fff; margin-bottom: 16px; font-family: var(--sans); font-weight: 500; }
.footer__contact p { padding: 3px 0; }
.footer__phone a { font-family: var(--serif); font-size: 22px; color: var(--gold); letter-spacing: .02em; }
.footer__shops { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.footer__shops a { font-size: 12px; padding: 5px 12px; border: 1px solid rgba(255,255,255,.18); }
.footer__friend { padding: 18px 32px; border-top: 1px solid rgba(255,255,255,.08);
    display: flex; flex-wrap: wrap; gap: 14px; font-size: 12.5px; color: rgba(255,255,255,.4); }
.footer__bottom { border-top: 1px solid rgba(255,255,255,.08); }
.footer__bottom-inner { padding: 20px 32px; display: flex; flex-wrap: wrap;
    justify-content: space-between; gap: 12px; font-size: 12.5px; color: rgba(255,255,255,.4); }
.footer__bottom-inner a { margin-left: 12px; }
.footer__disclaimer { max-width: 42em; }

/* ---------- 返回顶部 ---------- */
.back-top { position: fixed; right: 28px; bottom: 108px; width: 44px; height: 44px;
    background: #fff; border: 1px solid var(--line-2); color: var(--ink-2); display: grid;
    place-items: center; opacity: 0; visibility: hidden; transform: translateY(10px);
    transition: .32s var(--ease); z-index: 90; box-shadow: var(--shadow); }
.back-top.is-show { opacity: 1; visibility: visible; transform: none; }
.back-top:hover { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ==================================================================
   AI 客服
   ================================================================== */
.lxj-chat { position: fixed; right: 28px; bottom: 32px; z-index: 200; }
.lxj-chat__fab { position: relative; width: 58px; height: 58px; border-radius: 50%;
    background: linear-gradient(140deg, var(--accent) 0%, var(--accent-d) 100%);
    color: #fff; display: grid; place-items: center; border: 0; cursor: pointer;
    box-shadow: 0 10px 30px rgba(var(--accent-rgb),.34); transition: .34s var(--ease);
    animation: fabpulse 2s var(--ease) infinite; }
.lxj-chat__fab:hover { transform: translateY(-3px) scale(1.06);
    box-shadow: 0 14px 36px rgba(var(--accent-rgb),.44); }
.lxj-chat__fab.is-open { animation: none; }
.lxj-chat__fab.is-open .lxj-chat__dot { display: none; }
.lxj-chat__fab::after { content: ""; position: absolute; inset: -8px; border-radius: 50%;
    border: 2px solid var(--accent); opacity: 0; pointer-events: none;
    animation: fabring 2.4s var(--ease) infinite; }
.lxj-chat__fab.is-open::after { animation: none; }
@keyframes fabring {
    0% { transform: scale(0.9); opacity: .55; }
    70% { opacity: 0; }
    100% { transform: scale(1.45); opacity: 0; }
}
.lxj-chat__dot { position: absolute; top: 4px; right: 4px; width: 9px; height: 9px;
    background: #5c7a5e; border: 2px solid #fff; border-radius: 50%; }
.lxj-chat__fab.is-pulse { animation: fabpulse 1.8s var(--ease) infinite; }
@keyframes fabpulse {
    0%, 100% { box-shadow: 0 10px 30px rgba(var(--accent-rgb),.34); transform: scale(1); }
    50% { box-shadow: 0 14px 38px rgba(var(--accent-rgb),.46); transform: scale(1.07); }
}

.lxj-chat__panel { position: absolute; right: 0; bottom: 74px; width: 372px; max-width: 92vw;
    height: 540px; max-height: calc(100vh - 140px); background: #fff; border: 1px solid var(--line);
    box-shadow: var(--shadow-lg); display: flex; flex-direction: column; overflow: hidden;
    animation: chatin .34s var(--ease); z-index: 201; }
.lxj-chat__panel[hidden] { display: none !important; }
@keyframes chatin { from { opacity: 0; transform: translateY(16px) scale(.98); } to { opacity: 1; transform: none; } }
.lxj-chat__head { display: flex; align-items: center; gap: 12px; padding: 16px 18px;
    background: linear-gradient(120deg, var(--cta-b), var(--accent-d)); color: #fff; }
.lxj-chat__avatar { width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,.16);
    display: grid; place-items: center; font-family: var(--serif); font-size: 16px; }
.lxj-chat__title strong { display: block; font-size: 14.5px; font-weight: 500; }
.lxj-chat__title small { font-size: 11.5px; color: rgba(255,255,255,.62); }
.lxj-chat__close { margin-left: auto; width: 38px; height: 38px; border-radius: 50%;
    background: rgba(255,255,255,.1); border: 0; color: rgba(255,255,255,.8);
    display: grid; place-items: center; cursor: pointer; transition: .24s var(--ease); }
.lxj-chat__close:hover { background: rgba(255,255,255,.22); color: #fff; }
.lxj-chat__close svg { pointer-events: none; }
.lxj-chat__body { flex: 1; overflow-y: auto; padding: 18px 16px; background: var(--bg);
    display: flex; flex-direction: column; gap: 14px; scroll-behavior: smooth; }
.msg { display: flex; gap: 9px; max-width: 88%; }
.msg__bubble { padding: 11px 15px; font-size: 14px; line-height: 1.8; border-radius: 12px; word-break: break-word; }
.msg--bot { align-self: flex-start; }
.msg--bot .msg__bubble { background: #fff; border: 1px solid var(--line); border-top-left-radius: 2px; color: var(--ink-2); }
.msg--user { align-self: flex-end; }
.msg--user .msg__bubble { background: var(--accent); color: #fff; border-top-right-radius: 2px; }
.msg__bubble img, .msg__bubble video { margin-top: 8px; border-radius: 6px; max-width: 100%; }
.msg__src { font-size: 11px; color: #b3aca4; margin-top: 5px; }
.msg--typing .msg__bubble { display: flex; gap: 4px; padding: 15px; }
.msg--typing i { width: 5px; height: 5px; border-radius: 50%; background: var(--line-2);
    animation: dotjump 1.2s infinite; }
.msg--typing i:nth-child(2) { animation-delay: .18s; }
.msg--typing i:nth-child(3) { animation-delay: .36s; }
@keyframes dotjump { 0%,60%,100% { transform: translateY(0); opacity: .5; } 30% { transform: translateY(-4px); opacity: 1; } }

.lxj-chat__quick { padding: 10px 14px 0; display: flex; flex-wrap: wrap; gap: 7px; background: var(--bg); }
.lxj-chat__quick button { font-size: 12.5px; padding: 5px 12px; border: 1px solid var(--line-2);
    background: #fff; color: var(--ink-2); border-radius: 14px; transition: .24s var(--ease); }
.lxj-chat__quick button:hover { border-color: var(--accent); color: var(--accent); }
.lxj-chat__foot { display: flex; align-items: flex-end; gap: 8px; padding: 12px 14px;
    background: var(--bg); border-top: 1px solid var(--line); }
.lxj-chat__foot textarea { flex: 1; border: 1px solid var(--line-2); background: #fff;
    border-radius: 18px; padding: 9px 14px; font-size: 14px; resize: none; outline: 0;
    max-height: 92px; line-height: 1.6; }
.lxj-chat__foot textarea:focus { border-color: var(--accent); }
.lxj-chat__foot button { width: 36px; height: 36px; border-radius: 50%; background: var(--accent);
    color: #fff; display: grid; place-items: center; flex: 0 0 36px; transition: .26s var(--ease); }
.lxj-chat__foot button:hover { background: var(--accent-d); }
.lxj-chat__foot button:disabled { background: var(--line-2); cursor: not-allowed; }
.lxj-chat__tip { padding: 0 16px 12px; font-size: 11px; color: #b3aca4; background: var(--bg); line-height: 1.6; }

/* ==================================================================
   进场动画
   ================================================================== */
[data-reveal] { opacity: 0; transform: translateY(22px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
[data-reveal].is-in { opacity: 1; transform: none; }

/* ==================================================================
   响应式
   ================================================================== */
@media (max-width: 1200px) {
    .container { padding: 0 24px; }
    .layout { grid-template-columns: 1fr 288px; gap: 40px; }
    .tech__inner { gap: 48px; }
}

@media (max-width: 992px) {
    .section { padding: 72px 0; }
    .trust__grid { grid-template-columns: repeat(2, 1fr); }
    .trust__item { border-bottom: 1px solid rgba(255,255,255,.08); }
    .trust__item:nth-child(2n) { border-right: 0; }
    .certgrid, .valuegrid { grid-template-columns: repeat(2, 1fr); }
    .agrid, .geogrid { grid-template-columns: repeat(2, 1fr); }
    .layout, .pdetail, .contactgrid, .tech__inner, .faq__inner, .brandblock {
        grid-template-columns: 1fr; gap: 40px;
    }
    .brandblock:nth-child(even) .brandblock__media { order: 0; }
    .aside, .pgallery { position: static; }
    .footer__top { grid-template-columns: 1fr; gap: 40px; }
    .footer__nav { grid-template-columns: repeat(4, 1fr); }
    .article { padding: 40px 34px 46px; }
}

/* 平板 / 手机：导航改为抽屉式。汉堡图标固定在 LOGO 栏最右侧，
   菜单展开后位于最顶层（z-index:200），不被任何内容盒子遮挡。
   .nav-drawer 为固定裁剪层，根除离屏 translateX 造成的横向滚动。 */
@media (max-width: 992px) {
    .navbar__inner { height: 96px; gap: 12px; }
    .brand img { height: 80px; }
    .searchbox { display: none; }
    .navtoggle { display: flex; }
    .navbar__tools { margin-left: auto; }

    .nav-drawer {
        display: block; position: fixed; top: 98px; left: 0; right: 0; bottom: 0;
        z-index: 200; overflow: hidden; pointer-events: none;
    }
    .nav-drawer.is-open { pointer-events: auto; }
    .nav-drawer::before { content: ""; position: absolute; inset: 0;
        background: rgba(35,33,31,.42); opacity: 0; transition: opacity .32s var(--ease); pointer-events: none; }
    .nav-drawer.is-open::before { opacity: 1; }

    .mainnav {
        position: absolute; inset: 0; background: #fff;
        transform: translateX(100%); transition: transform .36s var(--ease);
        overflow-y: auto; padding: 12px 0 40px; border-top: 1px solid var(--line);
        box-shadow: 0 18px 50px rgba(35,33,31,.14);
    }
    .nav-drawer.is-open .mainnav { transform: none; }
    .mainnav__list { flex-direction: column; align-items: stretch; gap: 0; }
    .mainnav__item > a { height: auto; line-height: 1.6; padding: 16px 24px; border-bottom: 1px solid var(--line); }
    .mainnav__item > a::after { display: none; }
    .submenu { position: static; opacity: 1; visibility: visible; transform: none;
        border: 0; box-shadow: none; background: var(--bg-soft); padding: 4px 0; }
    .submenu a { padding: 11px 40px; }
}

@media (max-width: 768px) {
    body { font-size: 14.5px; }
    .container { padding: 0 18px; }
    .topbar__slogan { display: none; }
    .topbar__inner { justify-content: center; }
    .hero__viewport { height: 74vh; min-height: 420px; }
    .hero__mask { background: linear-gradient(180deg, rgba(28,25,23,.34) 0%, rgba(28,25,23,.66) 100%); }
    .hero__scroll { display: none; }
    .section { padding: 56px 0; }
    .sechead { margin-bottom: 34px; }
    .sechead--row { flex-direction: column; align-items: flex-start; gap: 12px; }

    .plist, .certgrid, .valuegrid, .agrid, .geogrid, .related__grid,
    .article__nav, .pinfo__params, .mapgrid { grid-template-columns: 1fr; }
    .plist { gap: 26px; }
    .acard--list { flex-direction: column; }
    .acard--list .acard__thumb { flex: none; aspect-ratio: 16/10; }
    .pcard__body { padding: 24px 22px 26px; }
    .article { padding: 30px 20px 36px; border-left: 0; border-right: 0; }
    .prose { font-size: 15px; }
    .prose h2 { font-size: 19px; }
    .ptabs__panel { padding: 28px 20px; }
    .ptabs__nav button { padding: 12px 18px; font-size: 14px; }
    .formcard { padding: 28px 22px; }
    .layout { padding: 44px 0 64px; }

    .footer__nav { grid-template-columns: repeat(2, 1fr); }
    .footer__top { padding: 44px 18px 36px; }
    .footer__bottom-inner { padding: 16px 18px; flex-direction: column; }

    .back-top { right: 16px; bottom: 96px; width: 40px; height: 40px; }
    .lxj-chat { right: 16px; bottom: 20px; }
    .lxj-chat__fab { width: 52px; height: 52px; }
    /* 移动端面板改为相对视口定位，避免被 52px 宽的浮动容器挤压成竖线 */
    .lxj-chat__panel { position: fixed; left: 12px; right: 12px; bottom: 84px;
        width: auto; max-width: none; height: calc(100vh - 160px); }
}

@media (max-width: 480px) {
    .trust__grid { grid-template-columns: 1fr; }
    .trust__item { border-right: 0; padding: 22px 18px; }
    .hero__title { font-size: 27px; }
    .pinfo__price b { font-size: 32px; }
    .pager__total { display: none; }
    .bigsearch button { width: 84px; font-size: 14px; }
}

/* ---------- 打印 ---------- */
@media print {
    .site-header, .site-footer, .lxj-chat, .back-top, .breadcrumb, .aside, .pager { display: none !important; }
    body { background: #fff; }
    .article { border: 0; padding: 0; }
}

/* ---------- 降低动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
    html { scroll-behavior: auto; }
    [data-reveal] { opacity: 1; transform: none; }
}

/* AI 客服消息媒体（图片/视频，配合 main.js mediaHtml 渲染） */
.msg__media { display: block; margin-top: 8px; text-decoration: none !important; }
.msg__media img { display: block; max-width: 100%; max-height: 220px; object-fit: cover; border-radius: 6px; }
.msg__media video { display: block; width: 100%; max-height: 240px; border-radius: 6px; background: #000; }
.msg__media + .msg__media { margin-top: 6px; }

/* ===== 正文配图统一块（<p align="center"><img width="100%">…<br>图说</p>） ===== */
.prose p[align="center"] { margin: 1.6em auto; text-align: center; font-size: 12.5px; color: var(--muted); letter-spacing: .04em; line-height: 1.6; }
.prose p[align="center"] img { display: block; width: 100%; height: auto; margin: 0 auto; border: 1px solid var(--line); }