:root {
  --paper: #fbfcf8;
  --white: #ffffff;
  --ink: #14211e;
  --muted: #5d6964;
  --line: #dfe8e1;
  --line-strong: #b8c8bf;
  --green: #063f36;
  --green-2: #0d6b5c;
  --green-3: #e7f2ee;
  --red: #c42b32;
  --red-dark: #971b22;
  --yellow: #f0cf56;
  --shadow: 0 24px 80px rgba(9, 42, 34, 0.12);
  --radius: 8px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(90deg, rgba(6, 63, 54, 0.04) 1px, transparent 1px),
    linear-gradient(0deg, rgba(6, 63, 54, 0.04) 1px, transparent 1px),
    var(--paper);
  background-size: 36px 36px;
  font-family: "Songti SC", "Noto Serif CJK SC", "Microsoft YaHei", "PingFang SC", serif;
  overflow-x: hidden;
}

body.nav-open,
body.modal-open {
  overflow: hidden;
}

body.admin-page {
  min-height: 100vh;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: none;
}

p {
  line-height: 1.75;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  gap: 20px;
  align-items: center;
  padding: 14px clamp(18px, 4vw, 48px);
  background: rgba(251, 252, 248, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: max-content;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-logo {
  width: 42px;
  height: 42px;
  object-fit: contain;
  background: var(--white);
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  box-shadow: 4px 4px 0 rgba(6, 63, 54, 0.16);
}

.main-nav {
  display: flex;
  justify-content: center;
  gap: clamp(12px, 1.3vw, 20px);
  color: var(--muted);
  font-size: 14px;
  white-space: nowrap;
}

.main-nav a {
  position: relative;
  padding: 8px 0;
}

.main-nav a::after {
  position: absolute;
  right: 0;
  bottom: 2px;
  left: 0;
  height: 2px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
  content: "";
}

.main-nav a:hover::after,
.main-nav a.active::after {
  transform: scaleX(1);
}

.header-actions,
.hero-actions,
.section-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.section-actions {
  justify-content: center;
  margin-top: 34px;
}

.section-actions.left {
  justify-content: flex-start;
}

.btn {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  box-shadow: 4px 4px 0 rgba(20, 33, 30, 0.92);
  font-weight: 800;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 rgba(20, 33, 30, 0.92);
}

.btn-small {
  min-height: 38px;
  padding: 0 14px;
  font-size: 14px;
}

.btn-red {
  color: var(--white);
  background: var(--red);
}

.btn-red:hover {
  background: var(--red-dark);
}

.btn-dark {
  color: var(--white);
  background: var(--green);
}

.btn-light {
  background: var(--yellow);
}

.btn-line,
.btn-ghost {
  background: transparent;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 10px;
  background: var(--white);
  border: 1px solid var(--ink);
  border-radius: var(--radius);
}

.menu-toggle span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--ink);
}

.section {
  position: relative;
  padding: clamp(72px, 9vw, 128px) clamp(18px, 4vw, 48px);
  overflow: hidden;
}

.hero {
  min-height: calc(100vh - 68px);
  display: grid;
  align-items: center;
  padding-top: clamp(76px, 9vw, 116px);
  background:
    radial-gradient(circle at 78% 24%, rgba(13, 107, 92, 0.18), transparent 28%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(231, 242, 238, 0.76));
  border-bottom: 1px solid var(--line);
}

.hero::before {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(112deg, transparent 0 48%, rgba(6, 63, 54, 0.12) 48.2% 48.7%, transparent 49%),
    linear-gradient(70deg, transparent 0 58%, rgba(196, 43, 50, 0.16) 58.2% 58.6%, transparent 59%),
    linear-gradient(0deg, rgba(6, 63, 54, 0.05) 1px, transparent 1px);
  background-size: auto, auto, 100% 58px;
  pointer-events: none;
  content: "";
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(760px, 100%);
  max-width: 100%;
}

.hero-brand-logo {
  display: block;
  width: clamp(120px, 13vw, 190px);
  height: auto;
  margin: 0 0 20px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  box-shadow: 6px 6px 0 rgba(6, 63, 54, 0.14);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--red);
  font-family: "Avenir Next", "Gill Sans", "PingFang SC", sans-serif;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  overflow-wrap: anywhere;
}

h1,
h2,
h3 {
  margin: 0;
  letter-spacing: 0;
  line-height: 1.08;
  overflow-wrap: anywhere;
}

h1 {
  max-width: 900px;
  font-size: clamp(48px, 7vw, 96px);
}

h2 {
  font-size: clamp(32px, 4vw, 58px);
}

h3 {
  font-size: clamp(21px, 2vw, 30px);
}

.hero-subtitle {
  margin: 22px 0 0;
  color: var(--green);
  font-size: clamp(22px, 2.5vw, 34px);
  font-weight: 800;
}

.hero-copy {
  max-width: 720px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: clamp(16px, 1.4vw, 19px);
}

.hero-slogan,
.center-slogan {
  display: inline-block;
  max-width: 100%;
  margin: 28px 0 0;
  padding: 14px 18px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  box-shadow: 5px 5px 0 var(--yellow);
  font-size: clamp(18px, 1.6vw, 24px);
  font-weight: 900;
}

.hero-actions {
  margin-top: 32px;
}

.hero-stats {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  width: min(var(--max), 100%);
  margin-top: clamp(48px, 8vw, 90px);
  background: var(--ink);
  border: 1px solid var(--ink);
  box-shadow: var(--shadow);
}

.hero-stats article {
  min-height: 142px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.94);
}

.hero-stats span,
.pain-grid span,
.process-list span,
.summit-flow span,
.city-line span {
  display: block;
  color: var(--red);
  font-family: "Avenir Next", "Gill Sans", "PingFang SC", sans-serif;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-stats strong {
  display: block;
  margin-top: 14px;
  line-height: 1.55;
  font-size: 18px;
}

.hero-network {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.node {
  position: absolute;
  display: grid;
  width: 74px;
  height: 74px;
  place-items: center;
  color: var(--white);
  background: var(--green);
  border: 2px solid var(--ink);
  border-radius: 50%;
  box-shadow: 8px 8px 0 rgba(20, 33, 30, 0.16);
  font-weight: 900;
}

.node-a { top: 18%; right: 21%; }
.node-b { top: 38%; right: 8%; }
.node-c { right: 26%; bottom: 29%; }
.node-d { right: 11%; bottom: 14%; }

.signal {
  position: absolute;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--red), var(--red) 12px, transparent 12px, transparent 22px);
  opacity: 0.76;
  transform-origin: left;
  animation: pulse-line 4s linear infinite;
}

.signal-a {
  top: 28%;
  right: 12%;
  width: 240px;
  transform: rotate(22deg);
}

.signal-b {
  right: 14%;
  bottom: 26%;
  width: 280px;
  transform: rotate(-28deg);
}

.signal-c {
  top: 58%;
  right: 25%;
  width: 210px;
  transform: rotate(67deg);
}

@keyframes pulse-line {
  from { background-position: 0 0; }
  to { background-position: 68px 0; }
}

.section-heading {
  width: min(860px, 100%);
  margin: 0 auto 42px;
  text-align: center;
}

.section-heading p:not(.eyebrow) {
  margin: 20px auto 0;
  color: var(--muted);
  font-size: 18px;
}

.problem-section,
.solutions-section,
.contact-section {
  background: rgba(255, 255, 255, 0.72);
}

.pain-grid,
.demand-grid,
.expert-feature,
.alliance-grid,
.share-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  width: min(var(--max), 100%);
  margin: 0 auto;
}

.pain-grid article,
.alliance-grid article,
.share-grid article,
.demand-card,
.expert-card,
.tool-suggestions article {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 16px 40px rgba(6, 63, 54, 0.08);
}

.pain-grid article,
.alliance-grid article,
.share-grid article {
  padding: 24px;
}

.pain-grid strong,
.alliance-grid strong,
.share-grid strong {
  display: block;
  margin-top: 14px;
  font-size: 20px;
}

.pain-grid p,
.alliance-grid p,
.share-grid p {
  margin: 10px 0 0;
  color: var(--muted);
}

.center-slogan {
  display: block;
  width: min(920px, 100%);
  margin: 44px auto 0;
  text-align: center;
}

.process-section {
  background:
    linear-gradient(180deg, rgba(231, 242, 238, 0.74), rgba(251, 252, 248, 0.96));
}

.process-list {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 1px;
  width: min(var(--max), 100%);
  margin: 0 auto;
  padding: 0;
  background: var(--ink);
  border: 1px solid var(--ink);
  list-style: none;
}

.process-list li {
  min-height: 230px;
  padding: 24px;
  background: var(--white);
}

.process-list strong {
  display: block;
  margin-top: 48px;
  font-size: 22px;
}

.process-list p {
  margin: 12px 0 0;
  color: var(--muted);
}

.demand-section {
  background: var(--green);
  color: var(--white);
}

.demand-section .section-heading p:not(.eyebrow),
.demand-section .eyebrow {
  color: rgba(255, 255, 255, 0.76);
}

.demand-card {
  padding: 26px;
  color: var(--ink);
}

.card-head {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  justify-content: space-between;
}

.status {
  min-width: max-content;
  padding: 5px 9px;
  color: var(--white);
  background: var(--green-2);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 900;
}

.status.fresh {
  background: var(--red);
}

.status.plan {
  color: var(--ink);
  background: var(--yellow);
}

dl {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
}

dt {
  color: var(--red);
  font-size: 13px;
  font-weight: 900;
}

dd {
  margin: -8px 0 8px;
  color: var(--muted);
  line-height: 1.65;
}

.experts-section {
  background: var(--paper);
}

.expert-feature {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.speaker-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: stretch;
}

.expert-card {
  padding: 30px;
}

.speaker-card {
  display: grid;
  align-content: start;
  min-height: 100%;
}

.expert-card.primary {
  position: relative;
  overflow: hidden;
}

.expert-card.primary::after {
  position: absolute;
  top: 22px;
  right: 22px;
  width: 58px;
  height: 58px;
  border: 2px solid var(--red);
  border-radius: 50%;
  opacity: 0.18;
  content: "";
}

.expert-role {
  margin: 0 0 12px;
  color: var(--red);
  font-weight: 900;
}

.expert-card > p:not(.expert-role) {
  color: var(--muted);
}

.expert-card ul {
  display: grid;
  gap: 12px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.expert-card li {
  line-height: 1.7;
}

.speaker-card li {
  font-size: 15px;
}

.expert-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  width: min(var(--max), 100%);
  margin: 22px auto 0;
}

.expert-strip span {
  padding: 10px 14px;
  background: var(--green-3);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-weight: 800;
}

.solution-table {
  width: min(var(--max), 100%);
  margin: 0 auto;
  overflow: hidden;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
}

.table-row {
  display: grid;
  grid-template-columns: 1fr 1.05fr 1.55fr;
  border-top: 1px solid var(--line);
}

.table-row:first-child {
  border-top: 0;
}

.table-row span {
  padding: 18px 20px;
  border-left: 1px solid var(--line);
  line-height: 1.65;
}

.table-row span:first-child {
  border-left: 0;
  font-weight: 900;
}

.table-head {
  color: var(--white);
  background: var(--green);
  font-weight: 900;
}

.summit-section {
  background:
    linear-gradient(135deg, rgba(6, 63, 54, 0.96), rgba(9, 77, 65, 0.9)),
    var(--green);
  color: var(--white);
}

.summit-panel {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 42px;
  width: min(var(--max), 100%);
  margin: 0 auto;
  align-items: start;
}

.summit-panel p {
  color: rgba(255, 255, 255, 0.78);
}

.summit-slogan {
  font-size: 22px;
  font-weight: 900;
}

.summit-flow {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.summit-flow article {
  min-height: 156px;
  padding: 20px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius);
}

.summit-flow strong {
  display: block;
  margin-top: 18px;
  font-size: 20px;
}

.summit-flow p {
  margin: 8px 0 0;
  color: var(--muted);
}

.city-line {
  width: min(var(--max), 100%);
  margin: 24px auto 0;
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  box-shadow: 5px 5px 0 var(--green-2);
}

.city-line p {
  margin: 8px 0 0;
  font-size: 19px;
  font-weight: 800;
}

.model-section {
  background:
    linear-gradient(180deg, rgba(251, 252, 248, 0.96), rgba(231, 242, 238, 0.76));
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 42px;
  width: min(var(--max), 100%);
  margin: 0 auto;
  align-items: center;
}

.contact-layout h2 {
  max-width: 760px;
}

.contact-layout p {
  max-width: 760px;
  color: var(--muted);
  font-size: 18px;
}

.contact-actions {
  margin-top: 28px;
}

.contact-card {
  padding: 28px;
  background: var(--green);
  color: var(--white);
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  box-shadow: 8px 8px 0 var(--red);
}

.contact-card p {
  margin: 10px 0;
  color: rgba(255, 255, 255, 0.84);
  font-size: 16px;
}

.contact-card .contact-name {
  color: var(--white);
  font-size: 30px;
  font-weight: 900;
}

.tool-suggestions {
  width: min(var(--max), 100%);
  margin: 56px auto 0;
}

.tool-suggestions h3 {
  margin-bottom: 20px;
}

.tool-suggestions > div {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.tool-suggestions article {
  padding: 24px;
}

.tool-suggestions strong {
  font-size: 22px;
}

.tool-suggestions p {
  color: var(--muted);
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  justify-content: space-between;
  padding: 28px clamp(18px, 4vw, 48px);
  color: rgba(255, 255, 255, 0.78);
  background: var(--ink);
}

.ai-chat {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 90;
  display: grid;
  gap: 12px;
  justify-items: end;
}

.ai-chat-toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 54px;
  padding: 8px 16px 8px 8px;
  color: var(--white);
  background: var(--green);
  border: 1px solid var(--ink);
  border-radius: 999px;
  box-shadow: 5px 5px 0 var(--red);
  font-weight: 900;
}

.ai-chat-toggle span {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  color: var(--ink);
  background: var(--yellow);
  border-radius: 50%;
}

.ai-chat-panel {
  width: min(390px, calc(100vw - 32px));
  overflow: hidden;
  background: var(--paper);
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  box-shadow: 10px 10px 0 rgba(20, 33, 30, 0.86);
}

.ai-chat-head {
  display: flex;
  gap: 16px;
  justify-content: space-between;
  align-items: flex-start;
  padding: 18px;
  color: var(--white);
  background: var(--green);
}

.ai-chat-head .eyebrow {
  color: var(--yellow);
}

.ai-chat-head h3 {
  font-size: 24px;
}

.chat-close {
  position: static;
  flex: 0 0 auto;
}

.ai-chat-messages {
  display: grid;
  gap: 10px;
  max-height: 320px;
  overflow: auto;
  padding: 16px;
  background:
    linear-gradient(90deg, rgba(6, 63, 54, 0.04) 1px, transparent 1px),
    linear-gradient(0deg, rgba(6, 63, 54, 0.04) 1px, transparent 1px),
    var(--white);
  background-size: 24px 24px;
}

.chat-message {
  width: fit-content;
  max-width: 92%;
  padding: 10px 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  line-height: 1.65;
  white-space: pre-wrap;
}

.chat-message.user {
  justify-self: end;
  color: var(--white);
  background: var(--green);
  border-color: var(--green);
}

.chat-message.assistant {
  justify-self: start;
  background: var(--paper);
}

.chat-message span {
  display: block;
  margin-bottom: 4px;
  color: var(--red);
  font-size: 12px;
  font-weight: 900;
}

.ai-chat-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px 16px 0;
}

.ai-chat-quick button {
  padding: 7px 10px;
  color: var(--green);
  background: var(--green-3);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 900;
}

.ai-chat-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  padding: 12px 16px;
}

.ai-chat-form input {
  min-width: 0;
  min-height: 40px;
  padding: 0 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
}

.ai-chat-note {
  margin: 0;
  padding: 0 16px 16px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal[aria-hidden="false"] {
  display: flex;
}

.expert-library {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: stretch;
  justify-content: flex-end;
  padding: 18px;
}

.expert-library[aria-hidden="false"] {
  display: flex;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(6, 20, 17, 0.62);
  backdrop-filter: blur(8px);
}

.modal-panel {
  position: relative;
  z-index: 1;
  width: min(760px, 100%);
  max-height: min(88vh, 820px);
  overflow: auto;
  padding: clamp(24px, 4vw, 40px);
  background: var(--paper);
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  box-shadow: 10px 10px 0 rgba(20, 33, 30, 0.9);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 38px;
  height: 38px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--ink);
  border-radius: 50%;
  font-size: 24px;
  line-height: 1;
}

.modal-copy {
  color: var(--muted);
}

.expert-library-panel {
  position: relative;
  z-index: 1;
  width: min(1120px, 100%);
  max-height: calc(100vh - 36px);
  overflow: auto;
  padding: clamp(22px, 3vw, 36px);
  background: var(--paper);
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  box-shadow: 10px 10px 0 rgba(20, 33, 30, 0.9);
}

.library-head {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  align-items: start;
}

.library-head p:not(.eyebrow) {
  max-width: 720px;
  color: var(--muted);
}

.library-tools {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 14px;
  margin-top: 24px;
}

.library-meta {
  margin: 18px 0;
  color: var(--green);
  font-weight: 900;
}

.library-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 18px;
  align-items: start;
}

.library-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.library-card {
  display: grid;
  gap: 8px;
  padding: 18px;
  text-align: left;
  background: var(--white);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  color: var(--ink);
  box-shadow: 0 12px 30px rgba(6, 63, 54, 0.07);
}

.library-card.active,
.library-card:hover {
  border-color: var(--ink);
  box-shadow: 5px 5px 0 var(--yellow);
}

.library-card span {
  color: var(--red);
  font-size: 12px;
  font-weight: 900;
}

.library-card strong {
  font-size: 22px;
}

.library-card em {
  color: var(--green);
  font-style: normal;
  font-weight: 900;
}

.library-card small {
  color: var(--muted);
  line-height: 1.6;
}

.library-detail {
  position: sticky;
  top: 18px;
  padding: 24px;
  background: var(--green);
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  color: var(--white);
  box-shadow: 6px 6px 0 var(--red);
}

.library-detail p {
  color: rgba(255, 255, 255, 0.78);
}

.library-detail .detail-role {
  color: var(--yellow);
  font-weight: 900;
}

.detail-list {
  display: grid;
  gap: 10px;
  margin: 18px 0;
}

.detail-list > strong,
.detail-topic strong {
  color: var(--white);
}

.detail-list div {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.detail-list span {
  padding: 6px 10px;
  color: var(--ink);
  background: var(--white);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 900;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.field {
  display: grid;
  gap: 8px;
}

.field.full {
  grid-column: 1 / -1;
}

.field label {
  font-weight: 900;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 46px;
  padding: 10px 12px;
  background: var(--white);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  color: var(--ink);
}

.field textarea {
  min-height: 108px;
  resize: vertical;
}

.form-submit {
  margin-top: 20px;
}

.form-message {
  min-height: 28px;
  margin: 14px 0 0;
  color: var(--green);
  font-weight: 900;
}

.form-message.error {
  color: var(--red);
}

.admin-nav {
  justify-content: flex-end;
}

.admin-main {
  width: min(var(--max), calc(100vw - 40px));
  margin: 0 auto;
  padding: clamp(60px, 8vw, 100px) 0;
}

.admin-hero {
  max-width: 860px;
  margin-bottom: 32px;
}

.admin-hero p:not(.eyebrow) {
  color: var(--muted);
  font-size: 18px;
}

.admin-muted {
  margin: 8px 0 0;
  color: var(--muted);
}

.admin-card {
  margin-top: 20px;
  padding: clamp(22px, 4vw, 34px);
  background: var(--white);
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.admin-card[hidden] {
  display: none;
}

.admin-card-head {
  display: flex;
  gap: 20px;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 18px;
}

.admin-form {
  margin-top: 18px;
}

.admin-expert-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 20px;
}

.admin-expert-item {
  padding: 16px;
  background: var(--green-3);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
}

.admin-expert-item span {
  color: var(--red);
  font-size: 12px;
  font-weight: 900;
}

.admin-expert-item strong {
  display: block;
  margin-top: 8px;
  font-size: 20px;
}

.admin-expert-item p {
  margin: 8px 0 0;
  color: var(--muted);
}

.submission-summary {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 18px 0;
}

.submission-summary article {
  padding: 16px;
  background: var(--green-3);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
}

.submission-summary strong {
  display: block;
  color: var(--green);
  font-size: 28px;
}

.submission-summary span {
  color: var(--muted);
  font-weight: 900;
}

.submission-list {
  display: grid;
  gap: 14px;
}

.submission-item {
  padding: 18px;
  background: var(--white);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  box-shadow: 0 10px 28px rgba(6, 63, 54, 0.06);
}

.submission-item-head {
  display: flex;
  gap: 12px;
  justify-content: space-between;
  color: var(--muted);
}

.submission-item-head span {
  color: var(--red);
  font-weight: 900;
}

.submission-item h3 {
  margin-top: 10px;
  font-size: 24px;
}

.submission-item dl {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 8px 12px;
  margin: 16px 0 0;
}

.submission-item dt {
  margin: 0;
}

.submission-item dd {
  margin: 0;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.58s ease, transform 0.58s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1100px) {
  .site-header {
    grid-template-columns: auto 1fr auto;
  }

  .main-nav {
    position: fixed;
    top: 65px;
    right: 18px;
    left: 18px;
    display: none;
    flex-direction: column;
    padding: 18px;
    background: var(--white);
    border: 1px solid var(--ink);
    border-radius: var(--radius);
    box-shadow: 6px 6px 0 rgba(20, 33, 30, 0.88);
  }

  body.nav-open .main-nav {
    display: flex;
  }

  .header-actions {
    justify-content: end;
  }

  .menu-toggle {
    display: block;
  }

  .hero-network {
    opacity: 0.38;
  }

  .hero-stats,
  .pain-grid,
  .demand-grid,
  .alliance-grid,
  .share-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .process-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .summit-panel,
  .contact-layout,
  .library-layout {
    grid-template-columns: 1fr;
  }

  .library-detail {
    position: static;
  }
}

@media (max-width: 720px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .header-actions {
    display: none;
  }

  .brand span:last-child {
    max-width: 210px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .hero {
    min-height: auto;
  }

  .hero-brand-logo {
    width: 128px;
  }

  .hero-content {
    width: min(320px, calc(100vw - 72px));
    max-width: min(320px, calc(100vw - 72px));
    min-width: 0;
  }

  .node,
  .signal {
    display: none;
  }

  .hero-stats,
  .section-heading,
  .pain-grid,
  .demand-grid,
  .expert-feature,
  .alliance-grid,
  .share-grid,
  .process-list,
  .solution-table,
  .summit-panel,
  .city-line,
  .contact-layout,
  .tool-suggestions,
  .summit-flow,
  .tool-suggestions > div {
    grid-template-columns: 1fr;
    width: calc(100vw - 40px);
    max-width: calc(100vw - 40px);
  }

  .library-head,
  .library-tools,
  .library-grid,
  .admin-expert-list,
  .submission-summary {
    grid-template-columns: 1fr;
  }

  .expert-library {
    padding: 10px;
  }

  .expert-library-panel {
    max-height: calc(100vh - 20px);
    width: 100%;
  }

  .admin-card-head {
    display: grid;
  }

  .submission-item dl {
    grid-template-columns: 1fr;
  }

  .ai-chat {
    right: 12px;
    bottom: 12px;
    left: 12px;
  }

  .ai-chat-panel {
    width: 100%;
  }

  .ai-chat-toggle {
    justify-self: end;
  }

  .process-list {
    grid-template-columns: 1fr;
  }

  .process-list li {
    min-height: 172px;
  }

  .process-list strong {
    margin-top: 24px;
  }

  .table-row {
    grid-template-columns: 1fr;
  }

  .table-row span {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .table-row span:first-child {
    border-top: 0;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: clamp(34px, 10vw, 40px);
    word-break: break-word;
  }

  h1 .title-cn,
  h1 .title-en {
    display: block;
  }

  .eyebrow {
    font-size: 10px;
    letter-spacing: 0.12em;
  }

  .hero-subtitle {
    font-size: clamp(21px, 7vw, 26px);
    overflow-wrap: anywhere;
    word-break: break-word;
  }

  .hero-slogan,
  .center-slogan {
    font-size: 18px;
    overflow-wrap: anywhere;
    word-break: break-word;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
    width: auto;
  }

  .hero-actions .btn,
  .contact-actions .btn,
  .section-actions .btn {
    flex: 1 1 158px;
    min-width: 0;
    padding-right: 12px;
    padding-left: 12px;
    text-align: center;
  }

  .hero-slogan,
  .center-slogan {
    width: 100%;
  }

  .section {
    padding-right: 20px;
    padding-left: 20px;
  }
}

@media (max-width: 360px) {
  .hero-actions {
    grid-template-columns: 1fr;
  }
}