@charset "UTF-8";
/* ==========================================================================
   贝妙科技官网 · v3 视觉重构
   色板与字号遵循 BP-01（白底 + 墨黑正文 + 朱橘唯一点睛）
   文案与结构未改动，本文件只负责视觉层
   ========================================================================== */

/* ---------- 1. 令牌 ---------- */
:root {
  --c-paper: #FFFFFF;
  --c-ink: #181E25;
  --c-ink-2: #2C3540;
  --c-muted: #66727F;
  --c-line: #E3E7EB;
  --c-line-2: #CCD3DA;
  --c-primary: #F0443B;
  --c-primary-ink: #C9382D;
  --c-primary-on-deep: #FF7A70;
  --c-soft: #F7F8FA;
  --c-tint: #FFF3F0;
  --c-on-deep: #AEB7C0;

  --gutter: 64px;
  --content: 1200px;
  --shell: calc(var(--content) + var(--gutter) * 2);

  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 18px;
  --r-pill: 999px;

  --shadow-1: 0 1px 2px rgba(24, 30, 37, .04);
  --shadow-2: 0 1px 2px rgba(24, 30, 37, .04), 0 18px 44px -26px rgba(24, 30, 37, .26);
  --shadow-3: 0 2px 4px rgba(24, 30, 37, .05), 0 26px 60px -28px rgba(24, 30, 37, .34);

  --ease: cubic-bezier(.22, .7, .3, 1);
}

/* ---------- 2. 基准 ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 104px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--c-paper);
  color: var(--c-ink);
  font: 400 15px/1.75 -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
        "Microsoft YaHei", "Segoe UI", sans-serif;
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
}

a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; color: inherit; }
button, a, input, textarea { -webkit-tap-highlight-color: transparent; }

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--c-primary-ink);
  outline-offset: 4px;
  border-radius: 4px;
}

h1, h2, h3, h4 { margin: 0; letter-spacing: -.015em; line-height: 1.4; }
h1, h2 { text-wrap: balance; }
p { margin: 0; }

/* ---------- 3. 版心 ---------- */
.wrap {
  max-width: var(--shell);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.section { padding-top: 96px; padding-bottom: 96px; }

/* ---------- 4. 页头 ---------- */
header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255, 255, 255, .88);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--c-line);
}

.header-inner {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 17px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 13px;
  flex-shrink: 0;
}

.brand-symbol {
  display: block;
  width: 46px;
  height: 46px;
  flex-shrink: 0;
  object-fit: contain;
  transition: transform .35s var(--ease);
}
.brand:hover .brand-symbol { transform: rotate(-6deg) scale(1.04); }

.brand-text {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.brand-name {
  display: block;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: .01em;
}
.brand small {
  display: block;
  margin-top: 4px;
  font-size: 9.5px;
  font-weight: 600;
  letter-spacing: .18em;
  color: var(--c-muted);
}

nav { display: flex; gap: 30px; }

nav a {
  position: relative;
  font-size: 14px;
  color: var(--c-muted);
  padding: 4px 0;
  transition: color .25s;
}
nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -3px;
  height: 1.5px;
  background: var(--c-primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .3s var(--ease);
}
nav a:hover { color: var(--c-ink); }
nav a:hover::after { transform: scaleX(1); transform-origin: left; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-shrink: 0;
}

.language-switch {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  white-space: nowrap;
}
.language-switch > span { color: var(--c-line-2); }
.language-switch a { color: var(--c-muted); padding: 6px 0; transition: color .25s; }
.language-switch a[aria-current="page"] { color: var(--c-ink); font-weight: 700; }
.language-switch a:hover { color: var(--c-primary-ink); }

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 8px 8px 8px 18px;
  border: 1px solid var(--c-line);
  border-radius: var(--r-pill);
  font-size: 13.5px;
  font-weight: 600;
  transition: background .28s var(--ease), color .28s, border-color .28s;
}
.nav-cta span {
  display: grid;
  place-items: center;
  width: 27px;
  height: 27px;
  border-radius: 50%;
  background: var(--c-soft);
  font-size: 12px;
  transition: background .28s, color .28s, transform .28s var(--ease);
}
.nav-cta:hover {
  background: var(--c-ink);
  border-color: var(--c-ink);
  color: #fff;
}
.nav-cta:hover span {
  background: rgba(255, 255, 255, .16);
  color: #fff;
  transform: rotate(45deg);
}

/* ---------- 5. 首屏 ---------- */
.hero { padding-top: 74px; }

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--c-muted);
  margin: 0 0 26px;
}
.eyebrow i {
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-primary);
  flex-shrink: 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 68px;
  align-items: center;
}

h1 {
  font-size: clamp(38px, 4.1vw, 56px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.025em;
  margin: 0 0 26px;
}
h1 em { font-style: normal; color: var(--c-primary); }

.intro {
  color: var(--c-muted);
  font-size: 17px;
  line-height: 1.85;
  margin-bottom: 32px;
  max-width: 33em;
}

.asset-emphasis {
  color: var(--c-ink);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: var(--c-primary);
  text-decoration-thickness: 2px;
  text-underline-offset: 6px;
  text-decoration-skip-ink: auto;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

.actions {
  display: flex;
  align-items: center;
  gap: 26px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 20px;
  padding: 13px 12px 13px 24px;
  border: 0;
  border-radius: var(--r-pill);
  background: var(--c-ink);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 10px 26px -16px rgba(24, 30, 37, .7);
  transition: transform .3s var(--ease), box-shadow .3s, background .3s;
}
.button span {
  display: grid;
  place-items: center;
  width: 27px;
  height: 27px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .14);
  font-size: 12px;
  transition: transform .3s var(--ease), background .3s;
}
.button:hover {
  transform: translateY(-2px);
  background: var(--c-ink-2);
  box-shadow: 0 18px 34px -18px rgba(24, 30, 37, .8);
}
.button:hover span { transform: rotate(45deg); background: var(--c-primary); }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--c-muted);
  padding-bottom: 3px;
  border-bottom: 1px solid var(--c-line-2);
  transition: color .25s, border-color .25s;
}
.text-link:hover { color: var(--c-ink); border-color: var(--c-primary); }

/* 首屏右侧：实施路径示意 */
.system {
  --sys-pad: 24px;
  position: relative;
  padding: 0 var(--sys-pad) 20px;
  overflow: hidden;
  border-radius: var(--r-lg);
  border: 1px solid var(--c-line);
  box-shadow: var(--shadow-2);
  background-color: var(--c-paper);
  background-image:
    radial-gradient(rgba(204, 211, 218, .6) .9px, transparent .9px),
    linear-gradient(180deg, rgba(255, 255, 255, 0) 0%, #FFFFFF 58%);
  background-size: 18px 18px, 100% 100%;
}

.system-visual {
  position: relative;
  margin: 0 calc(var(--sys-pad) * -1) 20px;
  background: #EFEDEA;
}
.system-visual picture { display: block; }
.system-visual img {
  display: block;
  width: 100%;
  height: auto;
}
/* 图片下缘向白卡过渡，避免生硬的横切边 */
.system-visual::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 20%;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, .26) 100%);
  pointer-events: none;
}

.system-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 11.5px;
  color: var(--c-muted);
  margin-bottom: 24px;
}
.system-top > span:first-child { font-weight: 600; }

.live {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--r-pill);
  background: var(--c-tint);
  color: var(--c-primary-ink);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .02em;
  white-space: nowrap;
}
.live::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--c-primary);
}

.input-row { display: flex; gap: 10px; }
.input-row > span {
  flex: 1;
  min-width: 0;
  padding: 11px 6px;
  border: 1px solid var(--c-line);
  border-radius: var(--r-sm);
  background: var(--c-paper);
  box-shadow: var(--shadow-1);
  text-align: center;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--c-ink-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.connector {
  height: 30px;
  display: flex;
  justify-content: space-around;
}
.connector span {
  height: 100%;
  border-left: 1px dashed var(--c-line-2);
}

.core {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 20px;
  border: 1px solid var(--c-ink);
  border-radius: var(--r-md);
  background: var(--c-paper);
  box-shadow: 0 10px 24px -16px rgba(24, 30, 37, .5);
}
.core-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--c-tint);
  color: var(--c-primary);
  font-size: 22px;
  line-height: 1;
}
.core strong { display: block; font-size: 17px; letter-spacing: -.01em; letter-spacing: normal; }
.core p { font-size: 12px; color: var(--c-muted); margin-top: 3px; }

.spine {
  width: 1px;
  height: 24px;
  margin: 0 auto;
  background: var(--c-ink);
}

.output {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 18px;
  border-radius: var(--r-sm);
  background: var(--c-ink);
  color: #fff;
  font-size: 13.5px;
  font-weight: 600;
}
.output > span + span { color: var(--c-primary-on-deep); }

.system-bottom {
  display: flex;
  justify-content: space-between;
  padding-top: 18px;
  font-size: 11px;
  color: var(--c-muted);
}

.hero-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 64px;
  padding: 22px 0;
  border-top: 1px solid var(--c-line);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--c-muted);
}

/* 英文版：行长与字号单独收敛，避免 <br> 之后出现孤行 */
html[lang="en"] .hero-grid { grid-template-columns: 1.32fr 1fr; gap: 48px; }
html[lang="en"] h1 {
  font-size: clamp(30px, 3.05vw, 44px);
  line-height: 1.12;
  letter-spacing: -.028em;
}
html[lang="en"] .intro { font-size: 16px; line-height: 1.8; }
html[lang="en"] .section-note { max-width: 380px; }
html[lang="en"] .core strong { font-size: 16px; }
html[lang="en"] .edges .index { letter-spacing: .06em; }
html[lang="en"] .case-label { letter-spacing: .01em; }
html[lang="en"] .asset-principle h3 { max-width: 26em; }
html[lang="en"] footer { flex-wrap: wrap; }

/* ---------- 联系方式：邮箱入口（CTA 区 / 弹窗 / 页脚） ---------- */
.mail-line {
  margin-top: 14px;
  font-size: 13px;
  color: var(--c-muted);
}
.mail-line a {
  color: var(--c-ink);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid var(--c-line-2);
  padding-bottom: 1px;
  transition: color .2s, border-color .2s;
}
.mail-line a:hover { color: var(--c-primary-ink); border-bottom-color: var(--c-primary-ink); }

.mail-brief {
  display: block;
  width: fit-content;
  margin-top: 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--c-ink);
  text-decoration: none;
  border-bottom: 1px solid var(--c-line-2);
  padding-bottom: 2px;
  transition: color .2s, border-color .2s;
}
.mail-brief:hover { color: var(--c-primary-ink); border-bottom-color: var(--c-primary-ink); }

.footer-mail {
  color: var(--c-ink-2);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s, border-color .2s;
}
.footer-mail:hover { color: var(--c-primary-ink); border-bottom-color: currentColor; }

/* ---------- 6. 我们的优势 ---------- */
.belief {
  background: var(--c-soft);
  padding: 76px 0 80px;
}

.belief-grid {
  display: grid;
  grid-template-columns: 1fr 2.3fr;
  gap: 56px;
  align-items: start;
}
.belief-grid > .eyebrow { padding-top: 10px; color: var(--c-primary-ink); }

h2 {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.42;
  letter-spacing: -.022em;
  margin: 0 0 24px;
}

.career-intro {
  font-size: 17px;
  line-height: 1.8;
  color: var(--c-ink-2);
  margin-bottom: 16px;
  max-width: 34em;
}
.career-intro strong { font-weight: 700; color: var(--c-ink); }

.belief-description {
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-muted);
  max-width: 46em;
}

.credentials {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin-top: 40px;
  counter-reset: cred;
  border-bottom: 1px solid var(--c-line);
}
.credentials article {
  counter-increment: cred;
  padding: 22px 30px 26px 0;
  border-top: 1px solid var(--c-line);
}
.credentials article:nth-child(even) {
  padding-left: 30px;
  padding-right: 0;
  border-left: 1px solid var(--c-line);
}

.credential-label {
  display: block;
  margin-bottom: 12px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .09em;
  color: var(--c-primary-ink);
}
.credential-label::before {
  content: "0" counter(cred) "\00a0\00a0";
  color: var(--c-muted);
  letter-spacing: .1em;
}

.credentials h3 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.55;
  margin-bottom: 8px;
}
.credentials p {
  font-size: 13px;
  line-height: 1.8;
  color: var(--c-muted);
}

.belief p.caption {
  margin-top: 22px;
  font-size: 11.5px;
  color: var(--c-muted);
}

/* ---------- 7. 服务能力 ---------- */
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 48px;
  margin-bottom: 54px;
}
.section-head h2 { margin-bottom: 0; }
.section-head .eyebrow {
  color: var(--c-primary-ink);
  margin-bottom: 18px;
  letter-spacing: .1em;
}
.section-note {
  max-width: 400px;
  text-wrap: pretty;
  padding-bottom: 8px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-muted);
  text-align: right;
}

.services { border-top: 1px solid var(--c-ink); }

.service {
  position: relative;
  display: grid;
  grid-template-columns: 92px 1fr 52px;
  align-items: start;
  gap: 26px;
  padding: 34px 0 36px;
  border-bottom: 1px solid var(--c-line);
}
.service::before {
  content: "";
  position: absolute;
  inset: 0 -22px;
  border-radius: var(--r-md);
  background: var(--c-soft);
  opacity: 0;
  transition: opacity .3s var(--ease);
}
.service > * { position: relative; }

.index {
  display: flex;
  flex-direction: column;
  gap: 15px;
  padding-top: 1px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--c-muted);
}
.index::before {
  content: "";
  display: block;
  width: 30px;
  height: 30px;
  flex-shrink: 0;
  background: center / contain no-repeat;
  transition: background-image .2s;
}
.service:nth-child(1) .index::before { background-image: url(figures/icon-01.svg); }
.service:nth-child(2) .index::before { background-image: url(figures/icon-02.svg); }
.service:nth-child(3) .index::before { background-image: url(figures/icon-03.svg); }
.service:nth-child(4) .index::before { background-image: url(figures/icon-04.svg); }
.service:nth-child(1):hover .index::before { background-image: url(figures/icon-01-active.svg); }
.service:nth-child(2):hover .index::before { background-image: url(figures/icon-02-active.svg); }
.service:nth-child(3):hover .index::before { background-image: url(figures/icon-03-active.svg); }
.service:nth-child(4):hover .index::before { background-image: url(figures/icon-04-active.svg); }

.service h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
  transition: color .25s;
}
.service h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-ink-2);
  margin-bottom: 10px;
}
.service p {
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-muted);
  max-width: 52em;
  margin-bottom: 14px;
}

.scope {
  font-size: 12px;
  color: var(--c-muted);
  letter-spacing: .01em;
}

.arrow {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  justify-self: end;
  border: 1px solid var(--c-line);
  border-radius: 50%;
  color: var(--c-muted);
  font-size: 15px;
  transition: background .3s var(--ease), color .3s, border-color .3s, transform .3s var(--ease);
}

.service:hover::before { opacity: 1; }
.service:hover .arrow {
  background: var(--c-ink);
  border-color: var(--c-ink);
  color: #fff;
  transform: rotate(45deg);
}

/* ---------- 8. 为什么是贝妙（深色区） ---------- */
.edge-section {
  position: relative;
  overflow: hidden;
  background: var(--c-ink);
  color: var(--c-paper);
}
.edge-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 78px 100%;
  pointer-events: none;
}
.edge-section::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(620px 320px at 86% -10%, rgba(240, 68, 59, .16), transparent 70%);
  pointer-events: none;
}
.edge-section > .wrap { position: relative; z-index: 1; }

.edge-section .section-head .eyebrow { color: var(--c-primary-on-deep); }
.edge-section .section-note { color: var(--c-on-deep); }

.edges {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}
.edges article {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, .16);
}
.edges .index {
  display: block;
  padding: 0;
  margin-bottom: 20px;
  border: 0;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--c-primary-on-deep);
}
.edges .index::before { display: none; }

.edges h3 {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 14px;
  color: #fff;
}
.edges p {
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-on-deep);
  max-width: 30em;
}

/* ---------- 9. 项目实践 ---------- */
.cases {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.case {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 0 28px 28px;
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  background: var(--c-paper);
  overflow: hidden;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s;
}

.case::before {
  content: "";
  display: block;
  aspect-ratio: 800 / 330;
  margin: 0 -28px 24px;
  background-color: var(--c-soft);
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  border-bottom: 1px solid var(--c-line);
}
.case:nth-child(1)::before { background-image: url(images/case-01.jpg);
  background-image: image-set(url(images/case-01.webp) type("image/webp"), url(images/case-01.jpg) type("image/jpeg")); }
.case:nth-child(2)::before { background-image: url(images/case-02.jpg);
  background-image: image-set(url(images/case-02.webp) type("image/webp"), url(images/case-02.jpg) type("image/jpeg")); }
.case:nth-child(3)::before { background-image: url(images/case-03.jpg);
  background-image: image-set(url(images/case-03.webp) type("image/webp"), url(images/case-03.jpg) type("image/jpeg")); }
.case:nth-child(4)::before { background-image: url(images/case-04.jpg);
  background-image: image-set(url(images/case-04.webp) type("image/webp"), url(images/case-04.jpg) type("image/jpeg")); }
.case:nth-child(5)::before { background-image: url(images/case-05.jpg);
  background-image: image-set(url(images/case-05.webp) type("image/webp"), url(images/case-05.jpg) type("image/jpeg")); }
/* 各图主体位置不同，逐张微调裁切重心，避免关键元素被切 */
.case:nth-child(2)::before { background-position: center 42%; }
.case:nth-child(5)::before { background-position: center 68%; }
.case:nth-child(6)::before { background-position: center 45%; }
.case:nth-child(6)::before { background-image: url(images/case-06.jpg);
  background-image: image-set(url(images/case-06.webp) type("image/webp"), url(images/case-06.jpg) type("image/jpeg")); }

.case-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--c-muted);
}
.case-label span {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--c-line-2);
}

.case h3 {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 12px;
}

.case > p {
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-muted);
}

.case-result {
  margin: 18px 0 20px;
  padding: 14px 16px;
  border-radius: var(--r-sm);
  background: var(--c-soft);
  font-size: 13px;
  line-height: 1.8;
  color: var(--c-ink-2);
}
.case-result::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 9px;
  border-radius: 50%;
  background: var(--c-primary);
  vertical-align: 2px;
}

.case-skills {
  margin-top: auto;
  font-size: 11.5px;
  letter-spacing: .02em;
  color: var(--c-primary-ink);
}

.case:hover {
  transform: translateY(-4px);
  border-color: var(--c-line-2);
  box-shadow: var(--shadow-3);
}

/* ---------- 10. 实施理念 ---------- */
.method {
  background: var(--c-soft);
  padding-top: 96px;
  padding-bottom: 100px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.steps article {
  padding: 22px 24px 0 0;
  border-top: 1px solid var(--c-line-2);
}
.steps article + article {
  padding-left: 24px;
  border-left: 1px solid var(--c-line);
}
.steps b {
  display: block;
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--c-primary);
  margin-bottom: 20px;
}
.steps h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; }
.steps p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-muted);
  margin-bottom: 16px;
}
.steps small {
  display: block;
  font-size: 11.5px;
  line-height: 1.7;
  color: var(--c-muted);
  padding-top: 14px;
  border-top: 1px dashed var(--c-line-2);
}

.asset-principle {
  position: relative;
  overflow: hidden;
  margin-top: 56px;
  padding: 44px 46px 40px;
  border-radius: var(--r-lg);
  background: var(--c-ink);
  color: #fff;
}
.asset-principle::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(560px 300px at 90% 0%, rgba(240, 68, 59, .18), transparent 68%);
  pointer-events: none;
}
.asset-principle > * { position: relative; z-index: 1; }

.asset-principle .eyebrow {
  color: var(--c-primary-on-deep);
  margin-bottom: 16px;
}
.asset-principle h3 {
  font-size: 27px;
  font-weight: 700;
  line-height: 1.4;
  color: #fff;
  margin-bottom: 16px;
  max-width: 22em;
}
.asset-principle p:not(.eyebrow) {
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-on-deep);
  max-width: 62ch;
}

.asset-loop {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 6px;
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, .14);
  font-size: 13.5px;
  font-weight: 600;
  color: #fff;
}
.asset-loop span {
  color: var(--c-primary-on-deep);
  font-size: 15px;
  margin: 0 4px;
}

.principles {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 34px;
  margin-top: 44px;
  padding-top: 26px;
  border-top: 1px solid var(--c-line);
  font-size: 12.5px;
  color: var(--c-ink-2);
}
.principles span {
  display: inline-flex;
  align-items: center;
  gap: 9px;
}
.principles span::before {
  content: "";
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  border: 1px solid var(--c-line-2);
  border-radius: 50%;
  background: radial-gradient(circle at 50% 50%, var(--c-primary) 0 2.4px, transparent 2.5px) no-repeat center;
}

/* ---------- 11. 行动召唤 ---------- */
.start {
  position: relative;
  padding-top: 108px;
  padding-bottom: 108px;
  text-align: center;
}
.start::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(760px 380px at 50% 8%, var(--c-tint), transparent 72%);
  pointer-events: none;
}
.start > * { position: relative; }

.start .eyebrow {
  justify-content: center;
  color: var(--c-primary-ink);
  letter-spacing: .12em;
}
.start h2 {
  font-size: 40px;
  line-height: 1.3;
  letter-spacing: -.028em;
  margin-bottom: 22px;
}
.start > p:not(.eyebrow) {
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-muted);
}
.start .button { margin-top: 30px; }
.fit {
  margin-top: 22px;
  font-size: 11.5px;
  color: var(--c-muted);
}

/* ---------- 12. 页脚 ---------- */
footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 28px;
  padding-bottom: 36px;
  border-top: 1px solid var(--c-line);
  font-size: 11.5px;
  color: var(--c-muted);
}
footer .brand {
  font-size: 16px;
  font-weight: 700;
  color: var(--c-ink);
}

/* ---------- 13. 需求弹窗 ---------- */
dialog {
  width: calc(100% - 32px);
  max-width: 560px;
  padding: 34px 36px 30px;
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  background: var(--c-paper);
  color: var(--c-ink);
  box-shadow: 0 40px 80px -40px rgba(24, 30, 37, .5);
}
dialog::backdrop { background: rgba(24, 30, 37, .58); }
dialog .eyebrow { color: var(--c-primary-ink); margin-bottom: 12px; }
dialog h2 { font-size: 26px; margin-bottom: 12px; }
dialog p { font-size: 13px; color: var(--c-muted); }

.close {
  float: right;
  width: 36px;
  height: 36px;
  border: 1px solid var(--c-line);
  border-radius: 50%;
  background: none;
  color: var(--c-ink);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  transition: background .25s, color .25s;
}
.close:hover { background: var(--c-soft); }

label {
  display: block;
  margin: 20px 0;
  font-size: 13px;
  font-weight: 600;
}
input, textarea {
  display: block;
  width: 100%;
  margin-top: 7px;
  padding: 11px 13px;
  border: 1px solid var(--c-line-2);
  border-radius: var(--r-sm);
  background: var(--c-paper);
  font-size: 14px;
  font-weight: 400;
  transition: border-color .25s, box-shadow .25s;
}
input:focus, textarea:focus {
  outline: 0;
  border-color: var(--c-ink);
  box-shadow: 0 0 0 3px rgba(24, 30, 37, .07);
}
input::placeholder, textarea::placeholder { color: var(--c-muted); }
textarea { min-height: 84px; resize: vertical; }
dialog .button { margin-top: 8px; }
#copy-status { min-height: 22px; margin-top: 12px; }

/* ---------- 14. 入场 ---------- */
@media (prefers-reduced-motion: no-preference) {
  .reveal { transition: opacity .7s var(--ease), transform .7s var(--ease); }
  .reveal:not(.is-in) { opacity: 0; transform: translateY(16px); }
}

/* ---------- 15. 响应式 ---------- */
@media (max-width: 1180px) {
  :root { --gutter: 44px; }
  .hero-grid { gap: 44px; }
  nav { gap: 22px; }
  .header-actions { gap: 16px; }
}

@media (max-width: 1000px) {
  :root { --gutter: 34px; }
  .hero { padding-top: 52px; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  h1 { font-size: 46px; }
  .system { max-width: 580px; }
  .belief-grid { grid-template-columns: 1fr; gap: 28px; }
  .belief-grid > .eyebrow { padding-top: 0; }
  .edges { gap: 30px; }
  .steps { grid-template-columns: 1fr 1fr; }
  .steps article:nth-child(odd) { padding-left: 0; border-left: 0; }
  .steps article { padding-bottom: 26px; }
  .steps article:nth-child(n+3) { border-top: 1px solid var(--c-line); }
  .section-head { align-items: flex-start; }
  .section-note { max-width: 300px; }
  html[lang="en"] h1 { font-size: 38px; }
  html[lang="en"] .hero-grid { gap: 32px; }
  html[lang="en"] .section-note { max-width: 100%; }
}

@media (max-width: 780px) {
  :root { --gutter: 22px; }

  .header-inner {
    flex-wrap: wrap;
    gap: 10px;
    padding: 14px var(--gutter) 0;
  }
  .brand-symbol { width: 40px; height: 40px; }
  .brand-name { font-size: 17px; }
  .brand small { font-size: 8.5px; letter-spacing: .14em; }

  /* 导航降为第二行胶囊，保留可达性而非直接隐藏 */
  nav {
    order: 3;
    width: 100%;
    gap: 0;
    margin: 0 calc(var(--gutter) * -1);
    padding: 0 calc(var(--gutter) - 11px) 8px;
    overflow-x: auto;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }
  nav::-webkit-scrollbar { display: none; }
  nav a {
    flex: 0 0 auto;
    padding: 9px 11px 8px;
    font-size: 12.5px;
    white-space: nowrap;
  }
  nav a::after { display: none; }

  .header-actions { gap: 12px; }
  .nav-cta { padding: 7px 6px 7px 13px; font-size: 12px; gap: 9px; }
  .nav-cta span { width: 22px; height: 22px; font-size: 10px; }
  .language-switch { font-size: 11.5px; gap: 6px; }

  .hero { padding-top: 34px; }
  h1 { font-size: clamp(32px, 8.4vw, 40px); line-height: 1.24; margin-bottom: 20px; }
  html[lang="en"] h1 { font-size: clamp(27px, 7vw, 34px); line-height: 1.16; }
  .intro { font-size: 15px; line-height: 1.85; margin-bottom: 26px; }
  .eyebrow { font-size: 11px; margin-bottom: 18px; }
  .actions { gap: 14px; }
  .button { justify-content: space-between; min-width: 0; }
  .hero-foot {
    margin-top: 34px;
    padding: 18px 0;
    font-size: 9.5px;
    letter-spacing: .1em;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .system { --sys-pad: 16px; padding: 0 var(--sys-pad) 16px; }
  .system-visual { margin-bottom: 16px; }
  .system-top { font-size: 10.5px; margin-bottom: 18px; }
  .input-row { gap: 6px; }
  .input-row > span { font-size: 11px; padding: 9px 2px; }
  .connector { height: 22px; }
  .core { padding: 15px 14px; gap: 12px; }
  .core-icon { width: 34px; height: 34px; font-size: 17px; }
  .core strong { font-size: 14.5px; }
  .core p { font-size: 11px; }
  .output { font-size: 12px; padding: 11px 13px; }
  .system-bottom { font-size: 10px; }

  .section, .method { padding-top: 60px; padding-bottom: 64px; }
  .belief { padding: 52px 0 56px; }
  h2 { font-size: 24px; }
  .career-intro { font-size: 15px; }
  .belief-description { font-size: 13.5px; }

  .credentials { grid-template-columns: 1fr; margin-top: 30px; }
  .credentials article,
  .credentials article:nth-child(even) {
    padding: 20px 0 22px;
    border-left: 0;
  }
  .credentials h3 { font-size: 16px; }

  .section-head { display: block; margin-bottom: 32px; }
  .section-note {
    max-width: none;
    margin-top: 16px;
    padding-bottom: 0;
    font-size: 13px;
    text-align: left;
  }

  .service {
    grid-template-columns: 44px 1fr 34px;
    gap: 14px;
    padding: 26px 0 28px;
  }
  .index { font-size: 10.5px; gap: 9px; }
  .index::before { width: 24px; height: 24px; }
  .service h3 { font-size: 18px; }
  .service h4 { font-size: 14px; }
  .service p { font-size: 13.5px; }
  .scope { font-size: 11.5px; line-height: 1.7; }
  .arrow { width: 34px; height: 34px; font-size: 13px; }

  .edges { grid-template-columns: 1fr; gap: 26px; }
  .edges h3 { font-size: 21px; }
  .edges h3 br { display: none; }
  .edges p { font-size: 13.5px; }

  .cases { grid-template-columns: 1fr; gap: 18px; }
  .case { padding: 0 20px 22px; }
  .case::before { margin: 0 -20px 20px; }
  .case h3 { font-size: 18px; }
  .case > p, .case-result { font-size: 13px; }

  .steps { grid-template-columns: 1fr; gap: 0; }
  .steps article,
  .steps article + article {
    padding: 20px 0 18px;
    border-left: 0;
  }
  .steps article:nth-child(n+2) { border-top: 1px solid var(--c-line); }
  .steps b { font-size: 28px; margin-bottom: 12px; }
  .steps h3 { font-size: 18px; }

  .asset-principle { padding: 26px 22px 24px; margin-top: 40px; }
  .asset-principle h3 { font-size: 20px; }
  .asset-principle p:not(.eyebrow) { font-size: 13px; }
  .asset-loop { font-size: 12px; line-height: 1.9; }

  .principles { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 18px; font-size: 11.5px; }

  .start { padding-top: 68px; padding-bottom: 68px; }
  .start h2 { font-size: 28px; }
  .start > p:not(.eyebrow) { font-size: 13.5px; }
  .start .button { width: 100%; }

  footer {
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 10px 22px;
    padding-top: 24px;
    padding-bottom: 28px;
  }
  footer .brand { width: 100%; }

  .desktop { display: none; }
  dialog { padding: 24px 20px 22px; }
  dialog h2 { font-size: 22px; }
}

@media (max-width: 430px) {
  .language-switch > span { display: none; }
  .brand small { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button:hover, .case:hover { transform: none; }
  .button:hover span, .service:hover .arrow, .nav-cta:hover span { transform: none; }
  .brand:hover .brand-symbol { transform: none; }
}

/* ---------- 16. 打印 ---------- */
@media print {
  header { position: static; }
  header nav, .nav-cta, .actions, .arrow, button { display: none; }
  .wrap { padding-left: 18px; padding-right: 18px; }
  .section, .method { padding-top: 28px; padding-bottom: 28px; }
  .hero-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .cases { grid-template-columns: 1fr 1fr; gap: 12px; }
  .case::before { aspect-ratio: 800 / 220; }
  .case, .service, .edges article, .steps article { break-inside: avoid; }
  .case:hover { transform: none; box-shadow: none; }
  .edge-section { background: var(--c-soft); color: var(--c-ink); }
  .edge-section::before, .edge-section::after { display: none; }
  .edges h3, .edges .index { color: var(--c-ink); }
  .edges p { color: var(--c-muted); }
  .asset-principle { background: var(--c-soft); color: var(--c-ink); }
  .asset-principle::after { display: none; }
  .asset-principle h3 { color: var(--c-ink); }
  .asset-principle p:not(.eyebrow), .asset-loop { color: var(--c-ink-2); }
  .start::before { display: none; }
  .reveal:not(.is-in) { opacity: 1; transform: none; }
}

/* 2026-10-26 调整：① 去掉首屏主视觉图 ② 六个案例配图恢复为无图卡片 */
.case::before { display: none !important; }
.case { padding: 30px; }
@media (max-width: 900px) { .case { padding: 24px; } }