:root {
  --bg: #f3f7ff;
  --bg-strong: #eaf1ff;
  --card: #ffffff;
  --card-alt: #f8fbff;
  --line: #e6edf9;
  --text: #0f172a;
  --muted: #5a6b85;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-soft: #edf4ff;
  --red: #ff4757;
  --red-dark: #e63c4d;
  --red-soft: #fff1f3;
  --purple: #7c4dff;
  --purple-soft: #f4ecff;
  --gold: #ffb020;
  --gold-soft: #fff7e8;
  --success: #0f9f6e;
  --success-soft: #ebfff5;
  --warning: #f59e0b;
  --danger: #ef4444;
  --shadow: 0 18px 42px rgba(37, 99, 235, 0.12);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: linear-gradient(180deg, #f4f8ff 0%, #eef4ff 100%);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
}

img { max-width: 100%; }

a {
  color: var(--primary);
  text-decoration: none;
}

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

button {
  border: 0;
  cursor: pointer;
}

textarea {
  min-height: 110px;
  resize: vertical;
}

.container {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(230, 237, 249, 0.9);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 18px;
}

#top {
  scroll-margin-top: 90px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 900;
  color: var(--text);
  letter-spacing: 0.02em;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), #6d9dff);
  color: #fff;
  box-shadow: 0 10px 20px rgba(37, 99, 235, 0.28);
}

.nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
}

.nav a {
  color: var(--muted);
  font-weight: 600;
  transition: color 0.2s ease;
}

.nav a:hover {
  color: var(--primary);
}

.top-banner-box {
  margin-top: 24px;
  background: linear-gradient(135deg, #fff6ef 0%, #fff 100%);
  border: 1px solid rgba(255, 176, 32, 0.2);
  border-radius: 24px;
  box-shadow: 0 16px 28px rgba(255, 176, 32, 0.08);
  padding: 20px 22px;
}

.top-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}

.top-banner-copy {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.top-banner-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  background: linear-gradient(135deg, #ffb020, #ff8a1d);
  color: #fff;
  font-weight: 800;
  font-size: 12px;
}

.top-banner-copy h2 {
  margin: 0;
  font-size: clamp(22px, 2vw, 32px);
  color: #2d1b04;
}

.top-banner-copy p {
  margin: 0;
  color: #7c5a1b;
  font-weight: 700;
}

.top-banner-btn {
  min-width: 150px;
}

.hero {
  margin-top: 26px;
  background: linear-gradient(135deg, #edf5ff 0%, #ffffff 45%, #eefcf7 100%);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
  padding: clamp(24px, 4vw, 48px);
  overflow: hidden;
  position: relative;
}

.hero::before {
  content: "";
  position: absolute;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(62, 122, 255, 0.18), transparent 68%);
  right: -80px;
  top: -130px;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.5fr 0.9fr;
  gap: 24px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 12px;
  color: var(--primary);
}

.hero h1 {
  margin: 0;
  font-size: clamp(32px, 4vw, 58px);
  line-height: 1.05;
  max-width: 700px;
}

.hero-lead {
  margin-top: 18px;
  max-width: 650px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.75;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  border-radius: 14px;
  padding: 0 22px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  font-weight: 700;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 20px rgba(15, 23, 42, 0.08);
}

.btn.primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 18px 30px rgba(37, 99, 235, 0.26);
}

.btn.red {
  background: linear-gradient(135deg, var(--red), var(--red-dark));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 18px 30px rgba(255, 71, 87, 0.22);
}

.btn.secondary {
  background: rgba(255, 255, 255, 0.8);
}

.btn.ghost {
  background: var(--card-alt);
}

.mini-stats {
  margin-top: 26px;
  display: grid;
  grid-template-columns: repeat(3, minmax(110px, 1fr));
  gap: 14px;
  max-width: 420px;
}

.mini-stats div {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(230, 237, 249, 0.8);
  border-radius: 16px;
  padding: 16px 14px;
}

.mini-stats strong {
  display: block;
  font-size: 18px;
  margin-bottom: 4px;
}

.mini-stats span {
  color: var(--muted);
  font-size: 12px;
}

.hero-panel {
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 24px;
  box-shadow: 0 16px 32px rgba(30, 41, 59, 0.06);
}

.promo-box {
  background: linear-gradient(135deg, #2563eb 0%, #6d8cff 100%);
  color: #fff;
  border-radius: 18px;
  padding: 22px 20px;
  box-shadow: 0 18px 30px rgba(37, 99, 235, 0.25);
}

.promo-box-red {
  background: linear-gradient(135deg, #ff4757 0%, #ff7b7b 100%);
  box-shadow: 0 18px 30px rgba(255, 71, 87, 0.22);
}

.promo-tag {
  display: inline-block;
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.15);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.promo-box h3 {
  margin: 18px 0 10px;
  font-size: 28px;
}

.promo-box p {
  margin: 0;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.9);
}

.hero-list {
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
  display: grid;
  gap: 12px;
}

.hero-list li {
  position: relative;
  padding-left: 22px;
  color: var(--muted);
  font-weight: 600;
}

.hero-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), #84a8ff);
}

.feature-grid,
.cards,
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 18px;
  margin-top: 24px;
}

.panel,
.task-card,
.task-row,
.form-shell,
.detail,
.empty,
.stat {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: 0 10px 26px rgba(15, 23, 42, 0.04);
}

.feature-card {
  padding: 22px 20px;
}

.feature-icon {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--primary-soft), #dfeeff);
  color: var(--primary);
  font-weight: 900;
  margin-bottom: 18px;
}

.feature-card h3 {
  margin: 0 0 10px;
  font-size: 22px;
}

.feature-card p,
.task-card p,
.muted,
.lead,
.notice,
.meta-grid,
.task-main p {
  color: var(--muted);
}

.task-stack {
  display: grid;
  gap: 18px;
  margin-top: 18px;
}

.task-panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: 0 10px 26px rgba(15, 23, 42, 0.04);
  padding: 22px 20px;
}

.task-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.task-name-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.task-index {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary-soft), #dfeeff);
  color: var(--primary);
  font-weight: 900;
}

.task-name-wrap h3 {
  margin: 0;
  font-size: 1.3rem;
}

.task-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--muted);
  font-size: 0.82rem;
  margin-top: 6px;
}

.reward-pill {
  background: linear-gradient(135deg, #ff4757, #ff7d86);
  color: #fff;
  font-size: 0.9rem;
  min-height: 38px;
  padding: 0 16px;
  letter-spacing: 0.02em;
  box-shadow: 0 10px 20px rgba(255, 71, 87, 0.18);
}

.task-desc {
  margin: 0 0 16px;
  color: var(--muted);
  line-height: 1.8;
}

.copy-box {
  background: linear-gradient(135deg, #fffaf0, #fffdf9);
  border: 1px solid rgba(255, 176, 32, 0.2);
  border-radius: 16px;
  padding: 16px;
}

.copy-title {
  margin-bottom: 10px;
  color: #8a5a00;
  font-weight: 800;
}

.adv-text-box {
  background: #fff;
  border: 1px solid rgba(255, 176, 32, 0.16);
  border-radius: 12px;
  padding: 16px;
  color: #2d2d2d;
  line-height: 1.8;
  white-space: pre-wrap;
  word-break: break-word;
}

.task-action-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.copy-btn {
  border-radius: 12px;
  background: linear-gradient(135deg, #ffb020, #ff9d1d);
  color: #fff;
  min-height: 42px;
  padding: 0 18px;
  font-weight: 700;
}

.section-wrap {
  margin-top: 32px;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.section-head h2,
.page-header h1,
.task-hero h1,
.task-main h2,
.detail h1 {
  margin: 0;
}

.link-button {
  color: var(--primary);
  font-weight: 700;
}

.task-card {
  display: block;
  padding: 20px 20px 18px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.task-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 32px rgba(37, 99, 235, 0.08);
  border-color: #cfe0ff;
}

.task-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.task-card strong {
  font-size: 1.12rem;
  color: var(--text);
}

.task-info-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 13px;
}

.task-card p {
  margin: 0;
  line-height: 1.7;
}

.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  border-radius: 999px;
  padding: 0 12px;
  background: #edf2ff;
  color: var(--primary);
  font-size: 12px;
  font-weight: 800;
}

.pill.success {
  background: var(--success-soft);
  color: var(--success);
}

.task-hero {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  background: linear-gradient(135deg, #ffffff 0%, #f6faff 100%);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 26px 24px;
  margin-bottom: 18px;
  box-shadow: 0 10px 26px rgba(15, 23, 42, 0.04);
}

.task-hero h1 {
  font-size: clamp(28px, 4vw, 42px);
  margin-top: 10px;
}

.task-list {
  display: grid;
  gap: 16px;
}

.task-row {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  gap: 18px;
  align-items: center;
  padding: 18px 20px;
}

.task-mark {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--primary-soft), #dfeeff);
  color: var(--primary);
  font-weight: 900;
}

.task-main {
  min-width: 0;
}

.task-titleline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.task-main h2 {
  font-size: 22px;
  line-height: 1.3;
}

.task-main p {
  margin: 12px 0 14px;
  line-height: 1.7;
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 10px;
  font-size: 13px;
}

.meta-grid span {
  display: grid;
  gap: 4px;
  background: var(--card-alt);
  border-radius: 12px;
  padding: 10px 12px;
  border: 1px solid var(--line);
}

.meta-grid strong {
  color: var(--text);
  font-size: 15px;
}

.task-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.task-actions-single {
  margin-top: 20px;
}

.exchange-banner {
  margin-top: 24px;
  background: linear-gradient(135deg, #7c4dff 0%, #a566ff 100%);
  border: 1px solid rgba(124, 77, 255, 0.15);
  border-radius: 18px;
  box-shadow: 0 18px 28px rgba(124, 77, 255, 0.18);
}

.exchange-banner a {
  display: block;
  padding: 18px 20px;
  text-align: center;
  color: #fff;
  font-weight: 800;
  font-size: 1.05rem;
}

.promo-copy-box {
  background: linear-gradient(135deg, #fff7e8 0%, #fffdf8 100%);
  border: 1px solid rgba(255, 176, 32, 0.24);
  border-radius: 20px;
  padding: 18px;
  margin: 22px 0 18px;
}

.copy-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.copy-header h3 {
  margin: 0;
  font-size: 1.2rem;
  color: #6d3c00;
}

.copy-btn {
  min-height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--gold), #ffb020);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 12px 20px rgba(255, 176, 32, 0.22);
}

.adv-text-box {
  background: #fff;
  border: 1px solid rgba(255, 176, 32, 0.2);
  border-radius: 14px;
  padding: 18px;
  color: #2d2d2d;
  line-height: 1.8;
  white-space: pre-wrap;
  word-break: break-word;
}

.detail,
.form-shell,
.empty {
  padding: 24px;
}

.task-detail {
  max-width: 900px;
}

.task-titleline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.task-detail h1,
.page-header h1,
.form-shell h1 {
  font-size: clamp(28px, 4vw, 42px);
}

.lead {
  margin: 18px 0 0;
  line-height: 1.8;
  font-size: 17px;
}

.requirement-box {
  background: var(--card-alt);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px 16px;
  margin: 20px 0;
  white-space: pre-wrap;
  line-height: 1.9;
  color: #30415d;
}

.detail dl {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 14px 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  margin: 0;
}

.detail dt {
  color: var(--muted);
  font-weight: 700;
}

.detail dd {
  margin: 0;
  line-height: 1.7;
  color: var(--text);
}

.form {
  display: grid;
  gap: 18px;
  max-width: 760px;
}

.home-form {
  display: grid;
  gap: 18px;
  max-width: 760px;
}

.form label,
.home-form label {
  display: grid;
  gap: 8px;
  color: var(--text);
  font-weight: 700;
}

.form input,
.form textarea,
.form select,
.home-form input,
.home-form textarea,
.home-form select,
.filters input,
.filters select {
  width: 100%;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 14px;
  padding: 12px 14px;
  color: var(--text);
  outline: none;
  transition: border-color 0.16s ease, box-shadow 0.16s ease;
}

.form input:focus,
.form textarea:focus,
.form select:focus,
.filters input:focus,
.filters select:focus {
  border-color: rgba(37, 99, 235, 0.7);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.08);
}

.dropzone {
  position: relative;
  min-height: 120px;
  border: 1.5px dashed rgba(37, 99, 235, 0.4);
  border-radius: 18px;
  background: linear-gradient(180deg, #f8fbff 0%, #edf5ff 100%);
  display: grid;
  place-items: center;
  text-align: center;
  padding: 16px;
  color: var(--muted);
  cursor: pointer;
}

.step-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: 0 10px 26px rgba(15, 23, 42, 0.04);
  padding: 24px;
  margin-top: 24px;
}

.step-title {
  margin: 0 0 8px;
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 900;
}

.step-desc {
  margin: 0 0 18px;
  color: var(--muted);
  line-height: 1.7;
}

.form-row {
  display: grid;
  gap: 8px;
}

.btn-wide {
  width: 100%;
}

.dropzone input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.dropzone.drag {
  border-color: var(--primary);
  background: linear-gradient(180deg, #edf4ff 0%, #e7f1ff 100%);
}

.progress-wrap {
  display: grid;
  gap: 8px;
}

.progress-wrap progress {
  width: 100%;
  height: 12px;
  accent-color: var(--primary);
}

.progress-wrap span {
  color: var(--muted);
  font-size: 13px;
}

.notice {
  margin-top: 18px;
  padding: 12px 14px;
  border-radius: 12px;
  background: var(--card-alt);
  border: 1px solid var(--line);
}

.captcha-line {
  display: grid;
  grid-template-columns: 1fr 150px;
  gap: 10px;
}

.captcha-line img {
  width: 150px;
  height: 52px;
  border: 1px solid var(--line);
  border-radius: 12px;
  object-fit: cover;
  cursor: pointer;
  background: #fff;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.result-item {
  background: var(--card-alt);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px;
  margin-bottom: 12px;
}

.empty {
  text-align: center;
  color: var(--muted);
  padding: 28px 20px;
}

.home-entry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.home-entry-card {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 74px;
  padding: 18px 20px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: linear-gradient(135deg, #f7faff 0%, #ffffff 100%);
  color: var(--text);
  font-weight: 800;
  box-shadow: 0 10px 22px rgba(15, 23, 42, 0.04);
}

.home-entry-card.accent {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  border-color: transparent;
}

.rule-panel {
  margin-top: 28px;
  background: linear-gradient(180deg, #fffdfb 0%, #fffaf5 100%);
  border: 1px solid rgba(255, 176, 32, 0.22);
  border-radius: 24px;
  box-shadow: 0 12px 26px rgba(255, 176, 32, 0.06);
  padding: 24px;
}

.rule-panel-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.rule-panel-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  background: linear-gradient(135deg, #fff2d6, #ffe0b3);
  color: #8a5a00;
  font-weight: 800;
  font-size: 12px;
}

.rule-panel-header h3 {
  margin: 0;
  font-size: clamp(24px, 2.5vw, 34px);
}

.rule-list {
  display: grid;
  gap: 10px;
  color: #3f4e64;
  line-height: 1.9;
}

.site-footer {
  margin-top: 30px;
  background: linear-gradient(180deg, #0f172a 0%, #121c35 100%);
  color: #e2e8f0;
  border-radius: 24px 24px 0 0;
  box-shadow: 0 -10px 26px rgba(15, 23, 42, 0.12);
}

.footer-inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 28px;
  padding: 34px 0 18px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.footer-logo {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, #2563eb, #7aa6ff);
  color: #fff;
  font-weight: 900;
}

.footer-brand strong {
  display: block;
  font-size: 1.15rem;
  margin-bottom: 6px;
}

.footer-brand p,
.footer-nav ul,
.footer-contact ul {
  margin: 0;
  padding: 0;
  list-style: none;
  color: rgba(226, 232, 240, 0.8);
  line-height: 1.9;
}

.footer-nav h4,
.footer-contact h4 {
  margin: 0 0 10px;
  color: #fff;
  font-size: 1rem;
}

.footer-nav a,
.footer-contact li {
  color: rgba(226, 232, 240, 0.8);
}

.footer-copyright {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 16px 0 24px;
  border-top: 1px solid rgba(148, 163, 184, 0.2);
  color: rgba(226, 232, 240, 0.7);
  text-align: center;
  font-size: 0.95rem;
}

.admin-body {
  background: linear-gradient(180deg, #f5f7ff 0%, #edf2ff 100%);
  color: var(--text);
}

.admin-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 230px;
  background: linear-gradient(180deg, #0f172a 0%, #111827 100%);
  color: #e2e8f0;
  padding: 22px 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.admin-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 54px;
  border-radius: 14px;
  background: rgba(37, 99, 235, 0.14);
  color: #fff;
  font-weight: 800;
  margin-bottom: 8px;
}

.admin-nav {
  display: grid;
  gap: 8px;
}

.admin-nav a,
.link-btn {
  color: #dbe7ff;
  background: transparent;
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 12px;
  padding: 10px 12px;
  text-align: left;
  font-weight: 600;
}

.admin-nav a:hover {
  background: rgba(59, 130, 246, 0.12);
  color: #fff;
}

.admin-logout-form {
  margin-top: auto;
}

.admin-main {
  flex: 1;
  padding: 26px 28px 40px;
}

.admin-main .section-head,
.admin-main h1,
.admin-main h2,
.admin-main h3 {
  color: var(--text);
}

.admin-main .section-head {
  margin: 0 0 18px;
}

.admin-main .form,
.admin-main .form-shell,
.admin-main .detail,
.admin-main .page-header,
.admin-main .panel,
.admin-main .section-head {
  background: transparent;
  border: 0;
  box-shadow: none;
  padding: 0;
}

.admin-main .form,
.admin-main .form.wide {
  display: grid;
  gap: 16px;
  max-width: 760px;
  background: rgba(255,255,255,0.78);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px;
  box-shadow: 0 12px 26px rgba(15, 23, 42, 0.04);
}

.admin-main label {
  display: grid;
  gap: 8px;
  color: var(--text);
  font-weight: 700;
}

.admin-main input,
.admin-main textarea,
.admin-main select,
.admin-main button,
.admin-main table {
  font: inherit;
}

.admin-main input,
.admin-main textarea,
.admin-main select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  background: #fff;
  color: var(--text);
}

.admin-main textarea {
  min-height: 120px;
}

.admin-main .check {
  display: flex;
  align-items: center;
  gap: 8px;
}

.admin-main .check input {
  width: auto;
}

.admin-main table {
  width: 100%;
  border-collapse: collapse;
  background: rgba(255,255,255,0.78);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 12px 26px rgba(15, 23, 42, 0.04);
}

.admin-main th,
.admin-main td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.admin-main th {
  background: #eef4ff;
  color: var(--primary-dark);
  font-size: 0.92rem;
}

.admin-main td {
  color: var(--text);
}

.admin-main .filters {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
  background: rgba(255,255,255,0.78);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px;
  box-shadow: 0 12px 26px rgba(15, 23, 42, 0.04);
}

.admin-main .filters input,
.admin-main .filters select,
.admin-main .filters button {
  max-width: 220px;
}

.admin-main .filters button,
.admin-main .btn,
.admin-main button {
  border: 0;
  border-radius: 12px;
  padding: 10px 16px;
  font-weight: 700;
}

.admin-main .btn.primary,
.admin-main button[type="submit"] {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 12px 18px rgba(37, 99, 235, 0.18);
}

.admin-main .btn.danger,
.admin-main .danger {
  background: linear-gradient(135deg, var(--red), var(--red-dark));
  color: #fff;
}

.admin-main .login-bg {
  background: linear-gradient(135deg, #eef4ff 0%, #f8fbff 100%);
  display: grid;
  place-items: center;
  min-height: 100vh;
}

.admin-main .login-card {
  width: min(420px, calc(100% - 32px));
  background: rgba(255,255,255,0.9);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: 0 16px 30px rgba(15, 23, 42, 0.08);
  padding: 28px;
  display: grid;
  gap: 16px;
}

.admin-main .login-card h1 {
  margin: 0;
  font-size: 2rem;
}

.admin-main .error {
  color: var(--danger);
  margin: 0;
}

.admin-main .inline {
  display: inline-block;
}

.admin-main .inline form,
.admin-main .inline button {
  display: inline-block;
}

button:disabled,
.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

@media (max-width: 760px) {
  body {
    overflow-x: hidden;
  }

  .container,
  .footer-inner,
  .footer-copyright {
    width: min(100% - 20px, 1180px);
  }

  .topbar-inner {
    flex-direction: column;
    justify-content: center;
    align-items: stretch;
    padding: 14px 0;
  }

  .brand {
    justify-content: center;
  }

  .nav {
    justify-content: center;
    gap: 8px 12px;
  }

  .nav a {
    font-size: 0.82rem;
  }

  .top-banner-box,
  .hero,
  .step-card,
  .rule-panel,
  .task-panel,
  .site-footer {
    border-radius: 18px;
  }

  .top-banner-inner {
    display: grid;
    gap: 12px;
  }

  .top-banner-copy {
    display: grid;
    gap: 8px;
  }

  .top-banner-btn,
  .btn,
  .task-action-row .btn,
  .copy-btn,
  .home-entry-card {
    width: 100%;
  }

  .hero {
    padding: 20px 16px;
  }

  .hero-grid,
  .task-hero,
  .task-row {
    grid-template-columns: 1fr;
    display: grid;
  }

  .hero h1 {
    font-size: clamp(28px, 8vw, 42px);
    line-height: 1.14;
  }

  .hero-lead {
    font-size: 1rem;
  }

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

  .mini-stats {
    grid-template-columns: 1fr;
    max-width: 100%;
  }

  .promo-box h3 {
    font-size: 22px;
  }

  .task-header-row {
    align-items: flex-start;
  }

  .task-name-wrap {
    flex-direction: column;
    align-items: flex-start;
  }

  .task-name-wrap h3 {
    font-size: 1.08rem;
  }

  .task-action-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .task-panel,
  .copy-box,
  .step-card,
  .rule-panel {
    padding: 16px;
  }

  .copy-box {
    overflow: hidden;
  }

  .adv-text-box {
    font-size: 0.95rem;
    word-break: break-word;
    overflow-wrap: anywhere;
  }

  .task-hero {
    padding: 20px;
  }

  .task-row {
    padding: 18px;
  }

  .task-mark {
    display: none;
  }

  .task-actions {
    display: grid;
    width: 100%;
  }

  .task-actions .btn {
    width: 100%;
  }

  .home-entry-grid {
    grid-template-columns: 1fr;
  }

  .rule-panel-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .rule-list div {
    overflow-wrap: anywhere;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 18px;
    padding-top: 24px;
  }

  .footer-brand {
    align-items: flex-start;
  }

  .captcha-line {
    grid-template-columns: 1fr;
  }

  .captcha-line img {
    width: 100%;
  }

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