/* ============================================================
   柔芯科技 ROUXIN TECH — 品牌官网样式
   深空蓝 × 电光青 · 企业级 AI 治理与智能增长
   ============================================================ */

:root {
    --ink:        #05091A;   /* 深空底色 */
    --ink-2:      #0A1128;
    --ink-3:      #0E1736;
    --paper:      #FFFFFF;
    --paper-alt:  #F5F7FC;
    --text:       #0C1226;
    --muted:      #5B6478;
    --muted-2:    #8A93A8;
    --on-ink:     #EAF0FF;
    --on-ink-mut: #9AA6C4;
    --brand:      #2E5CFF;
    --brand-2:    #00D4C8;
    --violet:     #6D5DF6;
    --grad:       linear-gradient(115deg, #2E5CFF 0%, #00D4C8 100%);
    --grad-soft:  linear-gradient(115deg, rgba(46,92,255,.14), rgba(0,212,200,.14));
    --line:       rgba(13, 20, 40, .08);
    --line-ink:   rgba(255, 255, 255, .10);
    --radius:     20px;
    --shadow-lg:  0 30px 60px -22px rgba(9, 20, 64, .28);
    --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC",
            "Microsoft YaHei", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 88px; }

body {
    font-family: var(--font);
    line-height: 1.75;
    color: var(--text);
    background: var(--paper);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

::selection { background: rgba(46, 92, 255, .22); }

img, svg { display: block; max-width: 100%; }

a { color: inherit; }

/* ---------- 通用 ---------- */
.container       { max-width: 1200px; margin: 0 auto; padding: 0 6%; }
.container-wide  { max-width: 1360px; margin: 0 auto; padding: 0 5%; }

.section      { padding: 110px 0; background: var(--paper); }
.section-dark { padding: 110px 0; background: var(--ink); color: var(--on-ink); position: relative; overflow: hidden; }

.grad-text {
    background: var(--grad);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.dot-sep {
    display: inline-block; margin: 0 .18em; color: var(--brand-2);
    -webkit-text-fill-color: var(--brand-2);
}

/* ---------- 入场动效 ---------- */
.reveal {
    opacity: 0;
    transform: translateY(26px);
    transition: opacity .8s cubic-bezier(.22,.61,.36,1), transform .8s cubic-bezier(.22,.61,.36,1);
    transition-delay: var(--d, 0s);
}
.reveal.visible { opacity: 1; transform: none; }

/* ---------- 按钮 ---------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 14px 34px;
    border-radius: 999px;
    font-size: 1rem; font-weight: 600; letter-spacing: .04em;
    text-decoration: none;
    transition: transform .3s ease, box-shadow .3s ease, background .3s ease, border-color .3s ease;
    cursor: pointer; border: 1px solid transparent;
}
.btn-primary {
    background: var(--grad);
    color: #fff;
    box-shadow: 0 14px 34px -10px rgba(46, 92, 255, .55);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 20px 44px -10px rgba(0, 212, 200, .5); }
.btn-ghost {
    border-color: rgba(255, 255, 255, .35);
    color: #fff;
    background: rgba(255, 255, 255, .04);
    backdrop-filter: blur(6px);
}
.btn-ghost:hover { border-color: var(--brand-2); color: var(--brand-2); transform: translateY(-3px); }
.btn-lg { padding: 17px 46px; font-size: 1.08rem; }

/* ---------- 导航 ---------- */
#header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    transition: background .4s ease, border-color .4s ease, box-shadow .4s ease;
    border-bottom: 1px solid transparent;
}
#header.scrolled {
    background: rgba(5, 9, 26, .82);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom-color: var(--line-ink);
}

.nav { display: flex; align-items: center; justify-content: space-between; height: 76px; }

.logo { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.logo-mark { width: 38px; height: 38px; }
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-text strong { color: #fff; font-size: 1.22rem; letter-spacing: .12em; }
.logo-text small { color: var(--on-ink-mut); font-size: .62rem; letter-spacing: .34em; }

.nav-links { display: flex; align-items: center; list-style: none; gap: 2.4rem; }
.nav-links a {
    color: rgba(255, 255, 255, .82);
    text-decoration: none; font-size: .95rem; font-weight: 500; letter-spacing: .06em;
    position: relative; padding: 6px 0;
    transition: color .3s ease;
}
.nav-links a::after {
    content: ""; position: absolute; left: 0; bottom: 0;
    width: 0; height: 2px; background: var(--grad); border-radius: 2px;
    transition: width .3s ease;
}
.nav-links a:hover { color: #fff; }
.nav-links a:hover::after { width: 100%; }
.nav-links .nav-cta {
    border: 1px solid rgba(255, 255, 255, .3);
    border-radius: 999px; padding: 9px 26px;
    color: #fff;
}
.nav-links .nav-cta::after { display: none; }
.nav-links .nav-cta:hover {
    background: var(--grad); border-color: transparent;
    box-shadow: 0 10px 26px -8px rgba(46, 92, 255, .6);
}

.nav-toggle {
    display: none; flex-direction: column; justify-content: center; gap: 5px;
    width: 42px; height: 42px;
    background: rgba(255, 255, 255, .06);
    border: 1px solid var(--line-ink); border-radius: 10px;
    cursor: pointer; padding: 9px;
}
.nav-toggle span {
    display: block; height: 2px; width: 100%;
    background: #fff; border-radius: 2px;
    transition: transform .3s ease, opacity .3s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 首屏 ---------- */
.hero {
    position: relative;
    background: radial-gradient(120% 130% at 80% -10%, #14224F 0%, var(--ink) 55%);
    color: var(--on-ink);
    padding: 190px 0 0;
    overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.orb { position: absolute; border-radius: 50%; filter: blur(90px); opacity: .5; }
.orb-a { width: 560px; height: 560px; background: rgba(46, 92, 255, .35); top: -160px; right: -120px; animation: drift 12s ease-in-out infinite alternate; }
.orb-b { width: 460px; height: 460px; background: rgba(0, 212, 200, .18); bottom: -140px; left: -140px; animation: drift 14s ease-in-out infinite alternate-reverse; }
@keyframes drift {
    from { transform: translate3d(0, 0, 0) scale(1); }
    to   { transform: translate3d(40px, 30px, 0) scale(1.08); }
}
.hero-grid {
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 30%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 30%, transparent 75%);
}

.hero-inner {
    position: relative; z-index: 1;
    display: grid; grid-template-columns: 1.12fr .88fr;
    align-items: center; gap: 3rem;
}

.hero-badge {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 8px 20px; border-radius: 999px;
    border: 1px solid rgba(0, 212, 200, .35);
    background: rgba(0, 212, 200, .08);
    color: #9FF5EC;
    font-size: .85rem; letter-spacing: .14em;
    margin-bottom: 1.8rem;
}
.hero-badge i {
    width: 7px; height: 7px; border-radius: 50%;
    background: var(--brand-2);
    box-shadow: 0 0 0 0 rgba(0, 212, 200, .6);
    animation: pulse 2.2s infinite;
}
@keyframes pulse {
    0%   { box-shadow: 0 0 0 0 rgba(0, 212, 200, .55); }
    70%  { box-shadow: 0 0 0 12px rgba(0, 212, 200, 0); }
    100% { box-shadow: 0 0 0 0 rgba(0, 212, 200, 0); }
}

.hero h1 {
    font-size: clamp(2.4rem, 4.6vw, 3.7rem);
    line-height: 1.28; font-weight: 700; letter-spacing: .02em;
    margin-bottom: 1.6rem;
}
.hero-sub {
    color: var(--on-ink-mut);
    font-size: clamp(1rem, 1.4vw, 1.13rem);
    max-width: 560px; margin-bottom: 2.6rem;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 1.1rem; }

/* 首屏视觉 */
.hero-visual { position: relative; display: flex; justify-content: center; }
.core-svg { width: min(100%, 500px); height: auto; overflow: visible; }

.chip-float  { animation: floatY 6s ease-in-out infinite; transform-origin: 260px 260px; }
.float-a { animation: floatY 5s ease-in-out infinite;  }
.float-b { animation: floatY 6.5s ease-in-out infinite .8s; }
.float-c { animation: floatY 5.5s ease-in-out infinite 1.6s; }
@keyframes floatY { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }

.orbit { transform-box: view-box; transform-origin: 260px 260px; }
.orbit-1 { animation: spin 26s linear infinite; }
.orbit-2 { animation: spin 20s linear infinite reverse; }
.orbit-3 { animation: spin 32s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* 数据带 */
.hero-stats-wrap {
    position: relative; z-index: 1;
    margin-top: 96px;
    border-top: 1px solid var(--line-ink);
    background: rgba(255, 255, 255, .03);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}
.hero-stats {
    display: grid; grid-template-columns: repeat(4, 1fr);
    padding-top: 2.4rem; padding-bottom: 2.4rem;
}
.stat { text-align: center; padding: .4rem 1rem; }
.stat + .stat { border-left: 1px solid var(--line-ink); }
.stat-num {
    display: flex; align-items: baseline; justify-content: center; gap: 2px;
    font-size: 2.35rem; font-weight: 700; line-height: 1.15;
    background: var(--grad);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent; color: transparent;
}
.stat-num em { font-style: normal; font-size: 1.15rem; }
.stat p { color: var(--on-ink-mut); font-size: .92rem; letter-spacing: .1em; margin-top: .35rem; }

/* ---------- 能力巡礼带 ---------- */
.marquee {
    overflow: hidden; white-space: nowrap;
    background: var(--ink-2);
    border-top: 1px solid var(--line-ink);
    border-bottom: 1px solid var(--line-ink);
    padding: 1.05rem 0;
}
.marquee-track {
    display: inline-flex; align-items: center;
    animation: marquee 30s linear infinite;
}
.marquee-track span {
    color: var(--on-ink-mut); font-size: .92rem; letter-spacing: .22em; font-weight: 500;
    margin-right: 2.2rem;
}
.marquee-track i { color: var(--brand); font-style: normal; font-size: .6rem; margin-right: 2.2rem; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- 区块标题 ---------- */
.section-head { text-align: center; max-width: 780px; margin: 0 auto 3.8rem; }
.kicker {
    display: inline-block;
    font-size: .8rem; font-weight: 600; letter-spacing: .28em;
    color: var(--brand);
    padding: 6px 18px; border-radius: 999px;
    border: 1px solid rgba(46, 92, 255, .3);
    background: rgba(46, 92, 255, .06);
    margin-bottom: 1.4rem;
}
.kicker-dark {
    color: #7EE8DF;
    border-color: rgba(0, 212, 200, .3);
    background: rgba(0, 212, 200, .07);
}
.section-head h2 {
    font-size: clamp(1.8rem, 3.2vw, 2.6rem);
    font-weight: 700; letter-spacing: .03em; line-height: 1.35;
    margin-bottom: 1.2rem;
}
.section-lead { color: var(--muted); font-size: 1.05rem; }
.lead-dark { color: var(--on-ink-mut); }

/* ---------- 关于柔芯 ---------- */
.about { background: var(--paper-alt); }

.about-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin-bottom: 2.6rem;
}
.about-card {
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 2.8rem 2.6rem;
    box-shadow: 0 12px 34px -18px rgba(12, 22, 60, .12);
    transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease;
    position: relative; overflow: hidden;
}
.about-card::before {
    content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px;
    background: var(--grad);
    transform: scaleX(0); transform-origin: left;
    transition: transform .45s ease;
}
.about-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(46, 92, 255, .22); }
.about-card:hover::before { transform: scaleX(1); }

.about-char {
    display: inline-flex; align-items: center; justify-content: center;
    width: 64px; height: 64px; border-radius: 18px;
    font-size: 1.9rem; font-weight: 700;
    background: var(--grad-soft);
    color: var(--brand);
    margin-bottom: 1.4rem;
}
.about-card h3 { font-size: 1.32rem; margin-bottom: .8rem; letter-spacing: .04em; }
.about-card p { color: var(--muted); font-size: .99rem; }

.vision-row {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; margin-bottom: 2.8rem;
}
.vision-item {
    text-align: center; padding: 1.8rem 1.4rem;
    background: var(--paper);
    border: 1px solid var(--line); border-radius: var(--radius);
    transition: transform .35s ease, box-shadow .35s ease;
}
.vision-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.v-label {
    display: inline-block;
    font-size: .8rem; font-weight: 600; letter-spacing: .3em;
    color: var(--brand-2); margin-bottom: .6rem;
}
.vision-item p { font-weight: 600; font-size: 1.06rem; line-height: 1.7; }

.industries {
    text-align: center;
    padding: 1.6rem 1.4rem;
    border-radius: var(--radius);
    background: var(--paper);
    border: 1px dashed rgba(46, 92, 255, .35);
}
.ind-label {
    display: block; font-size: .82rem; letter-spacing: .3em;
    color: var(--muted-2); margin-bottom: 1rem;
}
.ind-chips { display: flex; flex-wrap: wrap; justify-content: center; gap: .7rem; }
.ind-chips span {
    padding: 7px 20px; border-radius: 999px;
    background: rgba(46, 92, 255, .07);
    color: var(--brand);
    font-size: .92rem; font-weight: 500;
    transition: background .3s ease, color .3s ease;
}
.ind-chips span:hover { background: var(--grad); color: #fff; }

/* ---------- 核心能力 ---------- */
.service-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.8rem; }

.service-card {
    position: relative;
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 2.6rem 2.4rem;
    overflow: hidden;
    transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.service-card::after {
    content: ""; position: absolute; right: -70px; top: -70px;
    width: 190px; height: 190px; border-radius: 50%;
    background: var(--grad-soft);
    opacity: 0; transition: opacity .4s ease;
}
.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(46, 92, 255, .25);
}
.service-card:hover::after { opacity: 1; }

.s-icon {
    position: relative; z-index: 1;
    display: inline-flex; align-items: center; justify-content: center;
    width: 62px; height: 62px; border-radius: 17px;
    background: var(--grad);
    color: #fff;
    box-shadow: 0 12px 28px -10px rgba(46, 92, 255, .55);
    margin-bottom: 1.5rem;
}
.s-icon svg { width: 30px; height: 30px; }

.service-card h3 {
    position: relative; z-index: 1;
    font-size: 1.36rem; letter-spacing: .04em; margin-bottom: .9rem;
}
.s-desc {
    position: relative; z-index: 1;
    color: var(--muted); font-size: .97rem; margin-bottom: 1.5rem;
}
.s-tags {
    position: relative; z-index: 1;
    display: flex; flex-wrap: wrap; gap: .6rem; list-style: none;
}
.s-tags li {
    font-size: .8rem; font-weight: 500; letter-spacing: .05em;
    color: var(--brand);
    background: rgba(46, 92, 255, .08);
    border: 1px solid rgba(46, 92, 255, .18);
    padding: 5px 14px; border-radius: 999px;
}

/* ---------- 增长方法论 ---------- */
.method { background: radial-gradient(120% 120% at 50% 0%, #101B42 0%, var(--ink) 60%); }
.method::before {
    content: ""; position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, .03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .03) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 20%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 20%, transparent 70%);
    pointer-events: none;
}
.method .container { position: relative; z-index: 1; }

.method-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.6rem;
    position: relative;
}
.method-grid::before {
    content: ""; position: absolute; top: 34px; left: 8%; right: 8%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 200, .45), rgba(46, 92, 255, .45), transparent);
}
.step { text-align: center; padding: 0 .6rem; }
.step-num {
    position: relative; z-index: 1;
    display: inline-flex; align-items: center; justify-content: center;
    width: 68px; height: 68px; border-radius: 50%;
    background: var(--ink-2);
    border: 1px solid rgba(0, 212, 200, .35);
    font-size: 1.35rem; font-weight: 700;
    background-image: var(--grad);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent; color: transparent;
    margin-bottom: 1.3rem;
    transition: transform .35s ease, box-shadow .35s ease;
}
.step:hover .step-num {
    transform: translateY(-5px) scale(1.06);
    box-shadow: 0 0 0 8px rgba(0, 212, 200, .08);
}
.step h3 { color: var(--on-ink); font-size: 1.18rem; letter-spacing: .08em; margin-bottom: .6rem; }
.step p { color: var(--on-ink-mut); font-size: .92rem; }

/* ---------- 为什么选择柔芯 ---------- */
.why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.6rem; }

.why-card {
    background: var(--paper-alt);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 2.3rem 1.9rem;
    text-align: center;
    transition: transform .35s ease, box-shadow .35s ease, background .35s ease, border-color .35s ease;
}
.why-card:hover {
    background: var(--paper);
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(0, 212, 200, .35);
}
.w-icon {
    display: inline-flex; align-items: center; justify-content: center;
    width: 58px; height: 58px; border-radius: 16px;
    background: var(--grad-soft); color: var(--brand);
    margin-bottom: 1.2rem;
    transition: background .35s ease, color .35s ease, transform .35s ease;
}
.why-card:hover .w-icon { background: var(--grad); color: #fff; transform: rotate(-6deg) scale(1.06); }
.w-icon svg { width: 27px; height: 27px; }
.why-card h3 { font-size: 1.12rem; letter-spacing: .03em; margin-bottom: .7rem; }
.why-card p { color: var(--muted); font-size: .9rem; }

/* ---------- 联系我们 ---------- */
.contact {
    background: radial-gradient(130% 130% at 50% 110%, #14224F 0%, var(--ink) 60%);
}
.contact-card {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.6rem;
    max-width: 980px; margin: 0 auto;
    padding: 2.6rem 2.4rem;
    border-radius: 24px;
    background: rgba(255, 255, 255, .045);
    border: 1px solid var(--line-ink);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}
.contact-item { display: flex; flex-direction: column; align-items: center; text-align: center; gap: .9rem; }
.c-icon {
    display: inline-flex; align-items: center; justify-content: center;
    width: 54px; height: 54px; border-radius: 15px;
    background: var(--grad);
    color: #fff;
    box-shadow: 0 12px 26px -10px rgba(46, 92, 255, .6);
}
.c-icon svg { width: 25px; height: 25px; }
.contact-item span { font-size: .8rem; letter-spacing: .3em; color: var(--on-ink-mut); }
.contact-item p { color: var(--on-ink); font-weight: 600; font-size: 1.02rem; line-height: 1.6; }

.contact-cta { text-align: center; margin-top: 3rem; }

/* ---------- 页脚 ---------- */
.footer { background: #03060F; color: var(--on-ink-mut); padding: 3.2rem 0 2.6rem; }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1.2rem; }
.footer-slogan { font-size: .95rem; letter-spacing: .22em; color: var(--on-ink-mut); }
.footer-copy { font-size: .86rem; width: 100%; text-align: center; margin-top: 1.4rem; }
.footer-copy .icp { color: var(--on-ink-mut); text-decoration: none; margin-left: .8em; }
.footer-copy .icp:hover { color: var(--brand-2); }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
    .hero-inner { grid-template-columns: 1fr; text-align: center; }
    .hero-sub { margin-left: auto; margin-right: auto; }
    .hero-actions { justify-content: center; }
    .hero-visual { order: -1; }
    .core-svg { width: min(78%, 400px); }
    .method-grid { grid-template-columns: repeat(2, 1fr); gap: 2.4rem 1.6rem; }
    .method-grid::before { display: none; }
    .why-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
    .nav-toggle { display: flex; }
    .nav-links {
        position: fixed; top: 76px; left: 0; right: 0;
        flex-direction: column; gap: 0;
        background: rgba(5, 9, 26, .97);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--line-ink);
        padding: .6rem 6% 1.4rem;
        transform: translateY(-12px); opacity: 0; pointer-events: none;
        transition: transform .3s ease, opacity .3s ease;
    }
    .nav-links.open { transform: none; opacity: 1; pointer-events: auto; }
    .nav-links li { width: 100%; text-align: center; }
    .nav-links a { display: block; padding: .85rem 0; }

    .hero { padding-top: 150px; }
    .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 1.6rem 0; }
    .stat + .stat { border-left: none; }

    .about-grid { grid-template-columns: 1fr; }
    .vision-row { grid-template-columns: 1fr; }
    .service-grid { grid-template-columns: 1fr; }
    .contact-card { grid-template-columns: 1fr; gap: 2rem; }

    .section, .section-dark { padding: 80px 0; }
    .footer-inner { justify-content: center; text-align: center; }
}

@media (max-width: 560px) {
    .why-grid { grid-template-columns: 1fr; }
    .method-grid { grid-template-columns: 1fr; }
    .hero h1 { font-size: 2.05rem; }
    .btn { padding: 13px 26px; }
}

/* ---------- 降低动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .reveal { opacity: 1; transform: none; transition: none; }
    .orb, .orbit-1, .orbit-2, .orbit-3,
    .chip-float, .float-a, .float-b, .float-c,
    .marquee-track, .hero-badge i { animation: none !important; }
}