/* ========================================================================
   润生山泉官网主题 · runsheng.css
   深山水蓝配色 / 衬线标题 / 全屏首屏 / 滚动渐显
   ======================================================================== */

:root {
    --rs-ink: #10283a;
    --rs-deep: #0d3a5c;
    --rs-blue: #1e6ca8;
    --rs-cyan: #4aa3d8;
    --rs-mist: #f2f7fa;
    --rs-line: #e3edf3;
    --rs-gold: #c9a86a;
    --rs-text: #44586a;
    --rs-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STZhongsong", "SimSun", serif;
    --rs-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    --rs-shadow: 0 20px 60px rgba(13, 58, 92, .12);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

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

body.rs-body {
    font-family: var(--rs-sans);
    color: var(--rs-text);
    font-size: 16px;
    line-height: 1.8;
    background: #fff;
    overflow-x: hidden;
}

img { max-width: 100%; border: 0; display: block; }
ul, ol { list-style: none; }
a { color: inherit; text-decoration: none; transition: color .3s; }
a:hover { color: var(--rs-blue); }

.rs-container { width: min(1180px, 92%); margin: 0 auto; }
.rs-narrow { width: min(820px, 92%); }
.rs-center { text-align: center; }
.hidden { display: none !important; }

/* ---------------- 顶部导航 ---------------- */
.rs-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 18px 0;
    transition: background .4s, padding .4s, box-shadow .4s;
}
.rs-header.is-solid {
    background: rgba(255, 255, 255, .96);
    backdrop-filter: blur(10px);
    padding: 10px 0;
    box-shadow: 0 6px 30px rgba(13, 58, 92, .10);
}
.rs-header-inner {
    width: min(1320px, 94%);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.rs-logo { display: flex; align-items: center; gap: 10px; color: #fff; }
.rs-logo-mark { width: 40px; height: 40px; color: var(--rs-cyan); flex: none; }
.rs-logo-mark svg { width: 100%; height: 100%; }
.rs-logo-text { display: flex; flex-direction: column; line-height: 1.25; }
.rs-logo-text strong { font-family: var(--rs-serif); font-size: 21px; letter-spacing: 4px; font-weight: 600; }
.rs-logo-text em { font-style: normal; font-size: 11px; letter-spacing: 2.5px; opacity: .78; }
.rs-header.is-solid .rs-logo { color: var(--rs-ink); }

.rs-nav > ul { display: flex; align-items: center; gap: 6px; }
.rs-nav > ul > li { position: relative; }
.rs-nav > ul > li > a {
    display: block;
    padding: 10px 18px;
    color: rgba(255, 255, 255, .92);
    font-size: 15px;
    letter-spacing: 2px;
    position: relative;
}
.rs-nav > ul > li > a::after {
    content: "";
    position: absolute;
    left: 50%; bottom: 4px;
    width: 0; height: 2px;
    background: var(--rs-cyan);
    transform: translateX(-50%);
    transition: width .3s;
}
.rs-nav > ul > li:hover > a::after,
.rs-nav > ul > li.active > a::after { width: 28px; }
.rs-header.is-solid .rs-nav > ul > li > a { color: var(--rs-ink); }
.rs-header.is-solid .rs-nav > ul > li:hover > a,
.rs-header.is-solid .rs-nav > ul > li.active > a { color: var(--rs-blue); }

.rs-caret {
    display: inline-block;
    width: 7px; height: 7px;
    border-right: 1.6px solid currentColor;
    border-bottom: 1.6px solid currentColor;
    transform: rotate(45deg) translateY(-2px);
    margin-left: 4px;
    transition: transform .3s;
}
.rs-has-sub:hover .rs-caret { transform: rotate(225deg) translateY(-1px); }

.rs-subnav {
    position: absolute;
    top: calc(100% + 14px); left: 50%;
    transform: translate(-50%, 8px);
    background: #fff;
    min-width: 172px;
    padding: 8px 0;
    border-radius: 4px;
    box-shadow: 0 16px 44px rgba(13, 58, 92, .16);
    opacity: 0;
    visibility: hidden;
    transition: all .3s;
}
.rs-has-sub:hover .rs-subnav { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.rs-subnav::before {
    content: "";
    position: absolute;
    top: -14px; left: 0; right: 0; height: 14px;
}
.rs-subnav li a {
    display: block;
    padding: 10px 22px;
    color: var(--rs-ink);
    font-size: 14px;
    letter-spacing: 1.5px;
    white-space: nowrap;
}
.rs-subnav li a:hover { background: var(--rs-mist); color: var(--rs-blue); }

.rs-burger {
    display: none;
    background: none; border: 0;
    width: 40px; height: 40px;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    cursor: pointer;
    z-index: 120;
}
.rs-burger span {
    display: block;
    width: 24px; height: 2px;
    background: #fff;
    transition: all .3s;
}
.rs-header.is-solid .rs-burger span { background: var(--rs-ink); }
.rs-burger.is-open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.rs-burger.is-open span:nth-child(2) { opacity: 0; }
.rs-burger.is-open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ---------------- 通用元素 ---------------- */
.rs-kicker {
    font-family: var(--rs-serif);
    color: var(--rs-gold);
    letter-spacing: 6px;
    font-size: 15px;
    margin-bottom: 18px;
}
.rs-h2 {
    font-family: var(--rs-serif);
    font-weight: 600;
    color: var(--rs-ink);
    font-size: clamp(26px, 3.4vw, 40px);
    line-height: 1.45;
    letter-spacing: 3px;
    margin-bottom: 22px;
}
.rs-lead { font-size: 16.5px; line-height: 2.1; color: var(--rs-text); }
.rs-p { line-height: 2.1; margin-bottom: 18px; }
.rs-quote {
    font-family: var(--rs-serif);
    font-size: 22px;
    color: var(--rs-blue);
    letter-spacing: 4px;
    margin: 26px 0;
}
.rs-quote-big { font-size: clamp(24px, 3vw, 34px); text-align: center; margin: 44px 0; }

.rs-btn {
    display: inline-block;
    padding: 13px 40px;
    font-size: 15px;
    letter-spacing: 3px;
    border-radius: 2px;
    border: 1px solid transparent;
    transition: all .35s;
    cursor: pointer;
}
.rs-btn-solid { background: var(--rs-blue); color: #fff; }
.rs-btn-solid:hover { background: var(--rs-deep); color: #fff; }
.rs-btn-ghost { border-color: rgba(255,255,255,.75); color: #fff; }
.rs-btn-ghost:hover { background: rgba(255,255,255,.14); color: #fff; }
.rs-btn-plain { border-color: var(--rs-blue); color: var(--rs-blue); background: transparent; }
.rs-btn-plain:hover { background: var(--rs-blue); color: #fff; }

.rs-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--rs-blue);
    font-size: 15px;
    letter-spacing: 2px;
    border-bottom: 1px solid transparent;
}
.rs-more i { font-style: normal; transition: transform .3s; }
.rs-more:hover i { transform: translateX(6px); }

/* ---------------- 首屏 ---------------- */
.rs-section { position: relative; }

.rs-hero {
    height: 100vh;
    height: 100svh;
    min-height: 560px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}
.rs-hero-bg {
    position: absolute; inset: -60px;
    background-size: cover;
    background-position: center;
    animation: rsKenburns 26s ease-in-out infinite alternate;
}
@keyframes rsKenburns {
    from { transform: scale(1); }
    to { transform: scale(1.12) translateY(-14px); }
}
.rs-hero-veil {
    position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(9, 34, 52, .55) 0%, rgba(9, 34, 52, .28) 42%, rgba(9, 34, 52, .62) 100%);
}
.rs-hero-content { position: relative; z-index: 2; padding: 0 6%; color: #fff; }
.rs-hero-content .rs-kicker { color: rgba(255, 255, 255, .82); }
.rs-hero-title {
    font-family: var(--rs-serif);
    font-weight: 600;
    font-size: clamp(38px, 7vw, 76px);
    letter-spacing: clamp(6px, 1.4vw, 16px);
    line-height: 1.3;
    text-shadow: 0 6px 40px rgba(0, 0, 0, .35);
    margin-bottom: 26px;
}
.rs-hero-title .rs-dot { color: var(--rs-cyan); margin: 0 .2em; }
.rs-hero-sub {
    font-size: clamp(15px, 1.6vw, 18px);
    letter-spacing: 3px;
    line-height: 2.2;
    color: rgba(255, 255, 255, .88);
    margin-bottom: 40px;
}
.rs-hero-actions { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; }

.rs-scroll-cue {
    position: absolute;
    left: 50%; bottom: 34px;
    transform: translateX(-50%);
    width: 26px; height: 44px;
    border: 1.6px solid rgba(255, 255, 255, .65);
    border-radius: 14px;
    z-index: 3;
}
.rs-scroll-cue span {
    position: absolute;
    top: 8px; left: 50%;
    width: 3px; height: 8px;
    margin-left: -1.5px;
    border-radius: 2px;
    background: #fff;
    animation: rsCue 1.8s ease-in-out infinite;
}
@keyframes rsCue {
    0% { transform: translateY(0); opacity: 1; }
    70% { transform: translateY(14px); opacity: 0; }
    100% { transform: translateY(0); opacity: 0; }
}

/* ---------------- 品牌理念 ---------------- */
.rs-brandsec { padding: 120px 0 90px; text-align: center; }
.rs-brandsec .rs-lead { max-width: 760px; margin: 0 auto 60px; }

.rs-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    max-width: 980px;
    margin: 0 auto;
    border-top: 1px solid var(--rs-line);
    padding-top: 44px;
}
.rs-stats strong {
    display: block;
    font-family: var(--rs-serif);
    font-size: clamp(30px, 4vw, 46px);
    color: var(--rs-deep);
    font-weight: 600;
    line-height: 1.2;
}
.rs-stats strong i { font-style: normal; font-size: .45em; margin-left: 4px; color: var(--rs-blue); }
.rs-stats span { display: block; margin-top: 8px; font-size: 14px; letter-spacing: 2px; color: var(--rs-text); }

/* ---------------- 图文分屏 ---------------- */
.rs-waterscene {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 88vh;
    align-items: stretch;
}
.rs-splitimg {
    background-size: cover;
    background-position: center;
    min-height: 420px;
}
.rs-splittext {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: clamp(50px, 7vw, 110px);
    background: #fff;
}
.rs-splittext .rs-h2 { margin-bottom: 26px; }
.rs-splittext .rs-more { margin-top: 18px; }

/* ---------------- 生产基地 ---------------- */
.rs-factsec { padding: 110px 0; background: var(--rs-mist); text-align: center; }
.rs-factsec .rs-h2 { margin-bottom: 54px; }
.rs-facts {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
    margin-bottom: 46px;
    text-align: left;
}
.rs-fact {
    background: #fff;
    padding: 38px 28px;
    border-top: 2px solid var(--rs-cyan);
    box-shadow: 0 10px 34px rgba(13, 58, 92, .07);
    transition: transform .35s, box-shadow .35s;
}
.rs-fact:hover { transform: translateY(-8px); box-shadow: var(--rs-shadow); }
.rs-fact-ico { display: block; width: 46px; height: 46px; color: var(--rs-blue); margin-bottom: 20px; }
.rs-fact-ico svg { width: 100%; height: 100%; }
.rs-fact h3 {
    font-family: var(--rs-serif);
    color: var(--rs-ink);
    font-size: 19px;
    letter-spacing: 2px;
    margin-bottom: 12px;
}
.rs-fact p { font-size: 14.5px; line-height: 1.95; }
.rs-factsec-dark { background: var(--rs-deep); }
.rs-factsec-dark .rs-h2 { color: #fff; }
.rs-factsec-dark .rs-kicker { color: var(--rs-gold); }
.rs-factsec-dark .rs-fact { background: rgba(255,255,255,.06); border-top-color: var(--rs-cyan); }
.rs-factsec-dark .rs-fact h3 { color: #fff; }
.rs-factsec-dark .rs-fact p { color: rgba(255,255,255,.78); }
.rs-factsec-dark .rs-fact-ico { color: var(--rs-cyan); }

/* ---------------- 产品 ---------------- */
.rs-prodsec { padding: 110px 0; text-align: center; }
.rs-prodsec .rs-h2 { margin-bottom: 50px; }
.rs-products {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-bottom: 46px;
}
.rs-productcard {
    background: #fff;
    border: 1px solid var(--rs-line);
    transition: transform .35s, box-shadow .35s;
    text-align: left;
    display: block;
}
.rs-productcard:hover { transform: translateY(-8px); box-shadow: var(--rs-shadow); }
.rs-productcard-img { aspect-ratio: 3 / 4; overflow: hidden; background: var(--rs-mist); }
.rs-productcard-img img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform .6s;
}
.rs-productcard:hover .rs-productcard-img img { transform: scale(1.05); }
.rs-productcard-body { padding: 24px 26px 28px; }
.rs-productcard-body h3 {
    font-family: var(--rs-serif);
    color: var(--rs-ink);
    font-size: 20px;
    letter-spacing: 1.5px;
    margin-bottom: 8px;
}
.rs-spec { color: var(--rs-gold); font-size: 13.5px; letter-spacing: 1px; margin-bottom: 8px; }
.rs-intro {
    font-size: 14px;
    line-height: 1.9;
    color: var(--rs-text);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.rs-viewlink { display: inline-block; margin-top: 14px; color: var(--rs-blue); font-size: 14px; letter-spacing: 2px; }
.rs-viewlink i { font-style: normal; transition: transform .3s; display: inline-block; }
.rs-productcard:hover .rs-viewlink i { transform: translateX(5px); }
/* 仅一个产品时居中展示 */
.rs-products > a:only-child {
    grid-column: 2;
    max-width: 380px;
    width: 100%;
    justify-self: center;
}

/* ---------------- 文章卡片 ---------------- */
.rs-knowsec, .rs-newsec { padding: 110px 0; }
.rs-knowsec { background: var(--rs-mist); text-align: center; }
.rs-knowsec .rs-h2, .rs-newsec .rs-h2 { margin-bottom: 50px; }
.rs-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 26px;
    margin-bottom: 44px;
    text-align: left;
}
.rs-card {
    background: #fff;
    border: 1px solid var(--rs-line);
    transition: transform .35s, box-shadow .35s;
    display: block;
}
.rs-card:hover { transform: translateY(-8px); box-shadow: var(--rs-shadow); }
.rs-card-img { aspect-ratio: 16 / 10; overflow: hidden; background: var(--rs-mist); }
.rs-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.rs-card:hover .rs-card-img img { transform: scale(1.05); }
.rs-card-body { padding: 22px 24px 26px; }
.rs-card-body time { font-size: 12.5px; color: #93a8b8; letter-spacing: 1.5px; }
.rs-card-body h3 {
    font-family: var(--rs-serif);
    color: var(--rs-ink);
    font-size: 17.5px;
    line-height: 1.65;
    letter-spacing: 1px;
    margin: 8px 0 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.rs-card:hover .rs-card-body h3 { color: var(--rs-blue); }
.rs-card-body p {
    font-size: 13.5px;
    line-height: 1.9;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ---------------- CTA ---------------- */
.rs-cta {
    padding: 130px 0 120px;
    text-align: center;
    color: #fff;
    background:
        radial-gradient(1200px 500px at 80% -10%, rgba(74, 163, 216, .28), transparent 60%),
        linear-gradient(165deg, #0d3a5c 0%, #114b74 55%, #0d3a5c 100%);
    overflow: hidden;
}
.rs-cta .rs-h2 { color: #fff; }
.rs-cta .rs-kicker { color: var(--rs-gold); }
.rs-cta .rs-lead { color: rgba(255,255,255,.8); max-width: 640px; margin: 0 auto 40px; }
.rs-cta-small { padding: 90px 0; }
.rs-cta-small .rs-lead { margin-bottom: 34px; }
.rs-cta-drop { width: 64px; height: 64px; margin: 0 auto 26px; display: block; }

/* ---------------- 内页头图 ---------------- */
.rs-pagehead {
    height: 46vh;
    min-height: 340px;
    position: relative;
    display: flex;
    align-items: flex-end;
    padding-bottom: 54px;
    overflow: hidden;
}
.rs-pagehead-bg {
    position: absolute; inset: 0;
    background-size: cover;
    background-position: center;
}
.rs-pagehead-bg::after {
    content: "";
    position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(9, 34, 52, .5), rgba(9, 34, 52, .62));
}
.rs-pagehead .rs-container { position: relative; z-index: 2; }
.rs-pagehead h1 {
    font-family: var(--rs-serif);
    color: #fff;
    font-size: clamp(30px, 4.4vw, 48px);
    letter-spacing: 8px;
    font-weight: 600;
}
.rs-pagehead p {
    color: rgba(255,255,255,.85);
    letter-spacing: 4px;
    margin-top: 12px;
    font-size: 15px;
}

/* ---------------- 内页正文 ---------------- */
.rs-articlesec { padding: 90px 0; }
.rs-articlesec .rs-h2 { margin-top: 40px; }
.rs-articlesec .rs-h2:first-child { margin-top: 0; }
.rs-figure { margin: 34px 0; }
.rs-figure img { width: 100%; border-radius: 3px; box-shadow: var(--rs-shadow); }
.rs-figure figcaption, .rs-content figcaption {
    text-align: center;
    color: #8aa0b2;
    font-size: 13px;
    letter-spacing: 2px;
    margin-top: 12px;
}
.rs-blockquote {
    border-left: 3px solid var(--rs-cyan);
    background: var(--rs-mist);
    padding: 26px 30px;
    font-family: var(--rs-serif);
    color: var(--rs-deep);
    font-size: 17px;
    line-height: 2.1;
    letter-spacing: 1px;
    margin: 36px 0;
}

.rs-minerals {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin: 38px 0;
}
.rs-mineral {
    border: 1px solid var(--rs-line);
    border-top: 2px solid var(--rs-cyan);
    padding: 20px 22px;
    background: #fff;
}
.rs-mineral strong {
    display: block;
    font-family: var(--rs-serif);
    color: var(--rs-deep);
    font-size: 18px;
    margin-bottom: 6px;
    letter-spacing: 1px;
}
.rs-mineral span { font-size: 13px; line-height: 1.8; }

.rs-values {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 26px;
    padding: 0 0 110px;
    margin-top: -20px;
}
.rs-value {
    background: var(--rs-mist);
    padding: 40px 34px;
    text-align: center;
}
.rs-value h3 {
    font-family: var(--rs-serif);
    color: var(--rs-deep);
    font-size: 21px;
    letter-spacing: 4px;
    margin-bottom: 14px;
}
.rs-value p { font-size: 14.5px; line-height: 2; }

/* ---------------- 详情页 ---------------- */
.rs-detailsec { padding: 110px 0 90px; }
.rs-breadcrumb {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13.5px;
    color: #8aa0b2;
    margin-bottom: 34px;
    letter-spacing: 1px;
    flex-wrap: wrap;
}
.rs-breadcrumb a:hover { color: var(--rs-blue); }
.rs-breadcrumb i { font-style: normal; color: #c3d2dd; }

.rs-productdetail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(30px, 5vw, 70px);
    align-items: start;
}
.rs-productdetail-cover {
    border: 1px solid var(--rs-line);
    padding: 18px;
    background: #fff;
    box-shadow: var(--rs-shadow);
}
.rs-productdetail-thumbs { display: flex; gap: 10px; margin-top: 14px; flex-wrap: wrap; }
.rs-productdetail-thumbs img { width: 84px; height: 84px; object-fit: cover; border: 1px solid var(--rs-line); cursor: pointer; }
.rs-productdetail-info h1 {
    font-family: var(--rs-serif);
    color: var(--rs-ink);
    font-size: clamp(24px, 3vw, 34px);
    letter-spacing: 2px;
    margin-bottom: 14px;
    line-height: 1.5;
}
.rs-productdetail-info .rs-spec { font-size: 15px; margin-bottom: 18px; }
.rs-features { margin: 20px 0 24px; }
.rs-features li {
    padding: 9px 0;
    border-bottom: 1px dashed var(--rs-line);
    color: var(--rs-text);
    font-size: 15px;
}
.rs-features li i {
    font-style: normal;
    color: var(--rs-cyan);
    margin-right: 10px;
    font-weight: 700;
}
.rs-productdetail-info .rs-btn { margin: 8px 12px 0 0; }
.rs-others { margin-top: 90px; }
.rs-others .rs-h2 { margin-bottom: 40px; }

.rs-article h1 {
    font-family: var(--rs-serif);
    color: var(--rs-ink);
    font-size: clamp(24px, 3.2vw, 34px);
    line-height: 1.6;
    letter-spacing: 1px;
    margin-bottom: 16px;
}
.rs-article-meta {
    display: flex;
    gap: 22px;
    color: #8aa0b2;
    font-size: 13.5px;
    letter-spacing: 1.5px;
    padding-bottom: 26px;
    border-bottom: 1px solid var(--rs-line);
    margin-bottom: 30px;
    flex-wrap: wrap;
}
.rs-related { margin-top: 80px; }
.rs-related .rs-h2 { margin-bottom: 36px; font-size: 26px; }

/* 正文富文本 */
.rs-content { font-size: 16px; line-height: 2.15; color: var(--rs-text); }
.rs-content p { margin-bottom: 20px; }
.rs-content h2, .rs-content h3 {
    font-family: var(--rs-serif);
    color: var(--rs-ink);
    letter-spacing: 2px;
    margin: 36px 0 18px;
    font-size: 22px;
}
.rs-content h3 { font-size: 19px; }
.rs-content img { display: block; max-width: 100%; height: auto; margin: 26px auto; border-radius: 3px; }
.rs-content blockquote {
    border-left: 3px solid var(--rs-cyan);
    background: var(--rs-mist);
    padding: 20px 26px;
    margin: 26px 0;
    color: var(--rs-deep);
}
.rs-content ul { list-style: disc; padding-left: 26px; margin: 0 0 20px; }
.rs-content ol { list-style: decimal; padding-left: 26px; margin: 0 0 20px; }
.rs-content li { margin-bottom: 6px; }
.rs-content strong { color: var(--rs-deep); }
.rs-content table { width: 100%; border-collapse: collapse; margin: 24px 0; }
.rs-content th, .rs-content td { border: 1px solid var(--rs-line); padding: 10px 14px; text-align: left; font-size: 14.5px; }
.rs-content th { background: var(--rs-mist); color: var(--rs-deep); }

/* ---------------- 联系页 ---------------- */
.rs-contact-grid {
    display: grid;
    grid-template-columns: 1.25fr .75fr;
    gap: clamp(30px, 5vw, 70px);
    align-items: start;
}
.rs-contact-list { margin-top: 34px; }
.rs-contact-list li {
    display: flex;
    gap: 18px;
    padding: 20px 0;
    border-bottom: 1px solid var(--rs-line);
}
.rs-contact-list i { width: 40px; height: 40px; color: var(--rs-blue); flex: none; }
.rs-contact-list i svg { width: 100%; height: 100%; }
.rs-contact-list strong {
    display: block;
    font-family: var(--rs-serif);
    color: var(--rs-ink);
    letter-spacing: 2px;
    font-size: 16px;
    margin-bottom: 2px;
}
.rs-contact-list span { color: var(--rs-text); font-size: 14.5px; }
.rs-contact-qr {
    background: var(--rs-mist);
    padding: 44px 36px;
    text-align: center;
}
.rs-contact-qr img {
    width: 200px; height: 200px;
    margin: 0 auto 22px;
    border: 6px solid #fff;
    box-shadow: var(--rs-shadow);
}
.rs-contact-qr h3 {
    font-family: var(--rs-serif);
    color: var(--rs-ink);
    letter-spacing: 2px;
    font-size: 18px;
    margin-bottom: 6px;
}
.rs-contact-qr p { font-size: 13.5px; color: #8aa0b2; }

/* ---------------- 分页 ---------------- */
.rs-pagination { margin-top: 40px; text-align: center; }
.rs-pagination ul { display: inline-flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
.rs-pagination li a, .rs-pagination li span {
    display: block;
    min-width: 40px;
    padding: 9px 14px;
    border: 1px solid var(--rs-line);
    color: var(--rs-text);
    font-size: 14px;
    background: #fff;
}
.rs-pagination li.active span, .rs-pagination li a:hover {
    background: var(--rs-blue);
    border-color: var(--rs-blue);
    color: #fff;
}
.rs-pagination li.disabled span { color: #b9c9d5; }

/* ---------------- 页脚 ---------------- */
.rs-footer {
    background: #0b2131;
    color: rgba(255, 255, 255, .68);
    padding: 74px 0 0;
    font-size: 14px;
}
.rs-footer-grid {
    display: grid;
    grid-template-columns: 1.4fr .8fr 1fr .8fr;
    gap: 40px;
    padding-bottom: 50px;
}
.rs-logo-light { color: #fff; }
.rs-footer-desc { margin-top: 20px; line-height: 2.1; font-size: 13.5px; }
.rs-footer-col h4 {
    font-family: var(--rs-serif);
    color: #fff;
    font-size: 16px;
    letter-spacing: 3px;
    margin-bottom: 20px;
    font-weight: 600;
}
.rs-footer-col li { padding: 5px 0; }
.rs-footer-col a:hover { color: var(--rs-cyan); }
.rs-footer-qrcode img { background: #fff; padding: 5px; }
.rs-footer-qrcode p { margin-top: 10px; letter-spacing: 2px; font-size: 12.5px; }
.rs-footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, .1);
    padding: 22px 0;
    display: flex;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    font-size: 12.5px;
    color: rgba(255, 255, 255, .45);
}

/* ---------------- 渐显动画 ---------------- */
.rs-reveal {
    opacity: 0;
    transform: translateY(34px);
    transition: opacity .9s cubic-bezier(.2, .65, .3, 1), transform .9s cubic-bezier(.2, .65, .3, 1);
}
.rs-reveal.rs-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
    .rs-reveal { opacity: 1; transform: none; transition: none; }
    .rs-hero-bg { animation: none; }
}

.rs-empty {
    text-align: center;
    color: #8aa0b2;
    padding: 70px 0;
    letter-spacing: 2px;
}

/* ---------------- 响应式 ---------------- */
@media (max-width: 1024px) {
    .rs-facts { grid-template-columns: repeat(2, 1fr); }
    .rs-products, .rs-cards { grid-template-columns: repeat(2, 1fr); }
    .rs-footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 820px) {
    .rs-nav {
        position: fixed;
        top: 0; right: 0;
        width: min(320px, 82vw);
        height: 100vh;
        background: #fff;
        transform: translateX(100%);
        transition: transform .4s;
        overflow-y: auto;
        padding: 92px 28px 40px;
        box-shadow: -20px 0 60px rgba(9, 34, 52, .18);
    }
    .rs-nav.is-open { transform: translateX(0); }
    .rs-nav > ul { flex-direction: column; align-items: stretch; gap: 0; }
    .rs-nav > ul > li > a { color: var(--rs-ink) !important; padding: 14px 4px; border-bottom: 1px solid var(--rs-line); font-size: 16px; }
    .rs-nav > ul > li.active > a { color: var(--rs-blue) !important; }
    .rs-nav > ul > li > a::after { display: none; }
    .rs-subnav {
        position: static;
        opacity: 1; visibility: visible;
        transform: none;
        box-shadow: none;
        background: var(--rs-mist);
        margin: 4px 0 8px;
        display: none;
    }
    .rs-has-sub.is-open .rs-subnav { display: block; }
    .rs-burger { display: flex; }
    .rs-body.rs-nav-open .rs-burger span { background: var(--rs-ink); }

    .rs-hero-title { letter-spacing: 5px; }
    .rs-waterscene { grid-template-columns: 1fr; }
    .rs-splitimg { min-height: 300px; }
    .rs-splittext { padding: 54px 6%; }
    .rs-stats { grid-template-columns: repeat(2, 1fr); gap: 30px 0; }
    .rs-products, .rs-cards, .rs-minerals { grid-template-columns: 1fr; }
    .rs-productdetail, .rs-contact-grid { grid-template-columns: 1fr; }
    .rs-brandsec, .rs-factsec, .rs-prodsec, .rs-knowsec, .rs-newsec { padding: 76px 0; }
    .rs-articlesec { padding: 60px 0; }
    .rs-detailsec { padding: 60px 0 60px; }
    .rs-values { grid-template-columns: 1fr; padding-bottom: 76px; }
    .rs-footer-grid { grid-template-columns: 1fr; gap: 30px; }
    .rs-pagehead { min-height: 280px; height: 38vh; }
}