diff --git a/h5/js/capture-quality.js b/h5/js/capture-quality.js
index 653d997..067cfb4 100644
--- a/h5/js/capture-quality.js
+++ b/h5/js/capture-quality.js
@@ -6,9 +6,9 @@
   'use strict';
   // Real-phone feedback: ease alignment and normal hand/head movement while
   // retaining two checked frames, one face, framing and final JPEG validation.
-  var config = Object.freeze({ version: '2026-10-15-angle-relaxed-20-v3', score: 0.4,
+  var config = Object.freeze({ version: '2026-10-15-dark-100-v4', score: 0.4,
     near: 0.30, far: 0.68, center: 0.16, edge: 0.01,
-    dark: 65, bright: 235, holdMs: 450, minFrames: 2, maxGapMs: 2000,
+    dark: 100, bright: 235, holdMs: 450, minFrames: 2, maxGapMs: 2000,
     yawDrift: 8, pitchDrift: 8, centerDrift: 0.055, sizeDrift: 0.065 });
   function finite(v) { return typeof v === 'number' && isFinite(v); }
   function evaluate(d, options) {
diff --git a/h5/test/capture-quality-browser.mjs b/h5/test/capture-quality-browser.mjs
index c3a8534..79ffb6d 100644
--- a/h5/test/capture-quality-browser.mjs
+++ b/h5/test/capture-quality-browser.mjs
@@ -146,7 +146,7 @@ try {
   for (const key of ['front', 'left', 'right']) {
     const row = body.capture_diagnostics.views[key];
     assert.equal(row.mode, 'live'); assert.equal(row.direction_checked, true);
-    assert(row.score >= .4 && row.luma >= 65 && row.luma <= 235);
+    assert(row.score >= .4 && row.luma >= 100 && row.luma <= 235);
     assert(Math.abs(row.roll) <= 18);
   }
   assert(Math.abs(body.capture_diagnostics.views.front.yaw) <= 18);
diff --git a/h5/test/customer-feedback-fourth.js b/h5/test/customer-feedback-fourth.js
index 2b1ca44..bea3211 100644
--- a/h5/test/customer-feedback-fourth.js
+++ b/h5/test/customer-feedback-fourth.js
@@ -61,7 +61,8 @@ assert.equal(check(null).reason, 'quality');
 assert.equal(check(face(), { count: 2 }).reason, 'quality');
 const brokenLandmarks = face(); brokenLandmarks.landmarks.positions = [];
 assert.equal(check(brokenLandmarks).reason, 'quality', 'unreadable pose is not confirmed wrong angle');
-for (const luma of [70, 230]) assert(check(face(), { luma }).ok);
+for (const luma of [100, 100.01, 230, 235]) assert(check(face(), { luma }).ok);
+for (const luma of [65,70,99.99]) assert.equal(check(face(),{luma}).hint,'请到光线充足处');
 assert(check(face(), { offsetX: .15 }).ok);
 assert(!check(face(), { offsetX: .17 }).ok);
 for (const changes of [{ height: 190 }, { height: 400 }, { y: 8 }]) {
@@ -114,7 +115,7 @@ assert.equal(Diagnostics.assess(raw).views.right.status, 'valid');
 const normalized = Diagnostics.normalize({ version: Quality.config.version, secret: 'discard', views: { front: { mode: 'live', yaw: 1, score: .9, luma: Infinity, secret: 'discard' }, left: { mode: 'unchecked', reason: 'model-unavailable' } } });
 assert.equal(normalized.policy.capture.holdMs, 450);
 assert.equal(normalized.policy.capture.minFrames, 2);
-assert.equal(normalized.version, '2026-10-15-angle-relaxed-20-v3');
+assert.equal(normalized.version, '2026-10-15-dark-100-v4');
 assert.equal(normalized.views.front.luma, undefined);
 assert(!JSON.stringify(normalized).includes('discard'));
 assert.equal(Diagnostics.normalize({ version: '<script>' }).version, 'unknown');